Method and device for determining scattering parameter information

Abstract

The invention discloses a method and a device for determining scattering parameter information. The method comprises the following steps: acquiring information of a main link; based on the information of the main link, splitting the main link into a plurality of sub-links, and obtaining first port connection relationship information between ports in the sub-links and second port connection relationship information between ports of adjacent sub-links; generating a scattering parameter matrix corresponding to the sub-link based on the first port connection relationship information and the second port connection relationship information; the scattering parameter matrixes are cascaded, a target scattering parameter matrix corresponding to the main link is obtained, and the target scattering parameter matrix comprises port scattering parameter information corresponding to the main port of the main link. According to the embodiment of the invention, the efficiency and applicability of link scattering parameter extraction can be improved.

Description

Technical Field

[0001] This application belongs to the field of data communication technologies, and particularly relates to a method and device for determining scattering parameter information. Background Art

[0002] In modern electronic systems, data interaction between multifunctional modules usually needs to be carried out between two or more circuit boards. This cross-board transmission is usually connected through multiple connectors or cables to form a complete signal transmission link. To evaluate the signal transmission quality of such a complex link, it is necessary to extract and analyze the scattering parameters in the link, and the scattering parameters describe the reflection and transmission characteristics of the signal during transmission.

[0003] However, the existing technology mainly relies on simulation software when extracting the scattering parameters of the entire link. It is necessary to first obtain the scattering parameters of each part of the link through testing, simulation, or from the manufacturer, and save these data as SNP files. Then, during the cascading process, the user needs to manually import the SNP files into the simulation software to construct an n-port link model, and then perform matching and simulation on the model ports to obtain the cascaded scattering parameters. This method is not only cumbersome and time-consuming, but also cannot be used in an environment lacking simulation software.

[0004] Therefore, the existing technology has problems of low efficiency and poor applicability when extracting link scattering parameters. Summary of the Invention

[0005] Embodiments of this application provide a method and device for determining scattering parameter information, which can improve the efficiency and applicability of link scattering parameter extraction.

[0006] In a first aspect, an embodiment of this application provides a method for determining scattering parameter information, including:

[0007] Obtain information of the main link;

[0008] Based on the information of the main link, split the main link into multiple sub-links, and obtain first port connection relationship information between each port within the sub-links and second port connection relationship information between ports of adjacent sub-links;

[0009] Based on the first port connection relationship information and the second port connection relationship information, generate a scattering parameter matrix corresponding to the sub-link;

[0010] Cascade each scattering parameter matrix to obtain a target scattering parameter matrix corresponding to the main link, and the target scattering parameter matrix includes port scattering parameter information corresponding to the main port of the main link.

[0011] Based on the same inventive concept, in a second aspect, an embodiment of this application further provides a device for determining scattering parameter information, including:

[0012] An acquisition module, configured to acquire information of a main link;

[0013] A splitting module, configured to split the main link into multiple sub-links based on the information of the main link, and acquire first port connection relationship information between each pair of ports within the sub-links and second port connection relationship information between ports of adjacent sub-links;

[0014] A generation module, configured to generate a scattering parameter matrix corresponding to the sub-link based on the first port connection relationship information and the second port connection relationship information;

[0015] A cascading module, configured to cascade the respective scattering parameter matrices to obtain a target scattering parameter matrix corresponding to the main link, where the target scattering parameter matrix includes port scattering parameter information corresponding to the main ports of the main link.

[0016] Based on the same inventive concept, in a third aspect, an embodiment of the present application further provides a device for determining scattering parameter information, where the device includes a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the method for determining scattering parameter information in the first aspect, or any embodiment of the first aspect is implemented.

[0017] Based on the same inventive concept, in a fourth aspect, an embodiment of the present application further provides a computer storage medium, where computer program instructions are stored on the computer-readable storage medium, and when the computer program instructions are executed by a processor, the method for determining scattering parameter information in the first aspect, or any embodiment of the first aspect is implemented.

[0018] Based on the same inventive concept, in a fifth aspect, an embodiment of the present application further provides a computer program product, where when the instructions in the computer program product are executed by a processor of a device, the device is enabled to execute the method for determining scattering parameter information in the first aspect, or any embodiment of the first aspect.

[0019] The method and device for determining scattering parameter information according to the embodiments of the present application obtain the information of the main link, and then based on the information of the main link, the main link can be split into several sub-links, and the connection relationships between ports within the sub-links (the first port connection relationship information) and the connection relationships between ports of adjacent sub-links (the second port connection relationship information) are obtained respectively. Then, based on these detailed connection relationship information, a corresponding scattering parameter matrix is constructed for each sub-link. Finally, these matrices are cascaded to form a target scattering parameter matrix containing the scattering parameter information of the main ports of the main link. By automatically calculating the scattering parameters through a programmed process, it provides an efficient and accurate solution for evaluating the signal transmission quality of complex links in modern electronic systems, realizes the automation of scattering parameter extraction and solution, reduces the manual operation steps, reduces the risk of human errors, significantly improves the efficiency of scattering parameter extraction, and compared with the related technologies that require manual import of SNP files, construction of link models, port matching and simulation and other cumbersome steps, significantly improves the accuracy and efficiency of evaluation, and does not require dependence on specific simulation software, and has a wider applicability. Description of the Drawings

[0020] By reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, other features, objects and advantages of the present application will become more obvious, wherein the same or similar reference numerals represent the same or similar features, and the drawings are not drawn to actual scale.

[0021] Figure 1 It is a schematic flow chart of a method for determining scattering parameter information provided by an embodiment of the present application;

[0022] Figure 2 It is a schematic circuit structure diagram of the main link in the method for determining scattering parameter information provided by an embodiment of the present application;

[0023] Figure 3 It is another schematic flow chart of the method for determining scattering parameter information provided by an embodiment of the present application;

[0024] Figure 4 It is still another schematic flow chart of the method for determining scattering parameter information provided by an embodiment of the present application;

[0025] Figure 5 It is yet another schematic flow chart of the method for determining scattering parameter information provided by an embodiment of the present application;

[0026] Figure 6 It is yet another schematic flow chart of the method for determining scattering parameter information provided by an embodiment of the present application;

[0027] Figure 7It is another schematic flowchart of the method for determining scattering parameter information provided by an embodiment of the present application;

[0028] Figure 8 It is another schematic flowchart of the method for determining scattering parameter information provided by an embodiment of the present application;

[0029] Figure 9 It is another schematic circuit structure diagram of the main link in the method for determining scattering parameter information provided by an embodiment of the present application;

[0030] Figure 10 It is a schematic structural diagram of a device for determining scattering parameter information provided by an embodiment of the present application;

[0031] Figure 11 It is a schematic structural diagram of a device for determining scattering parameter information provided by an embodiment of the present application. Detailed implementation manners

[0032] The features and exemplary embodiments of various aspects of the present application will be described in detail below. For the purpose of making the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below in combination with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "comprising..." do not exclude the presence of additional identical elements in the process, method, article or device comprising the said elements.

[0034] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the front and rear associated objects.

[0035] Without departing from the spirit or scope of the present application, various modifications and variations can be made in the present application, which will be apparent to those skilled in the art. Therefore, the present application is intended to cover the modifications and variations of the present application that fall within the scope of the corresponding claims (claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in the present application can be combined with each other without conflict.

[0036] Before elaborating on the technical solutions provided in the embodiments of the present application, for the convenience of understanding the embodiments of the present application, the present application first specifically describes the problems existing in the related technologies:

[0037] In modern electronic systems, data interaction between multifunctional modules usually needs to be carried out between two or more boards. This cross-board transmission is usually connected through multiple connectors or cables to form a complete signal transmission link. In order to evaluate the signal transmission quality of such a complex link, it is necessary to extract and analyze the scattering parameters in the link, and the scattering parameters describe the reflection and transmission characteristics of the signal during transmission.

[0038] However, the related technologies mainly rely on simulation software when extracting the scattering parameters of the entire link. It is necessary to first obtain the scattering parameters of each part of the link through testing, simulation or from the manufacturer, and save these data as SNP files. Then, during the cascading process, the user needs to manually import the SNP files into the simulation software to construct an n-port link model, and then match and simulate the model ports to obtain the cascaded scattering parameters. This method is not only cumbersome and time-consuming, but also cannot be used in an environment lacking simulation software. Therefore, the related technologies have problems of low efficiency and poor applicability when extracting link scattering parameters.

[0039] Based on this, the embodiments of the present application provide a method and device for determining scattering parameter information, which can improve the efficiency and applicability of link scattering parameter extraction.

[0040] The following elaborates in detail on the method for determining scattering parameter information provided in the embodiments of the present application with reference to the accompanying drawings.

[0041] Figure 1 is a schematic flowchart of a method for determining scattering parameter information provided in the embodiments of the present application. As Figure 1 shown, the method may include steps S110 to S140.

[0042] S110, obtain information about the main link.

[0043] Among them, the main link is a complete signal transmission link formed by connecting two communication chips (Tx transmitting chip and Rx receiving chip) through multiple connectors or cables during cross-board communication.

[0044] Specifically, obtain information on the complete main signal transmission link from the transmission port of the transmitting chip to the receiving port of the receiving chip. The information on the main link may include identification information of each port within the main link and connection relationship information between each port, etc.

[0045] Exemplarily, the information on the main link can be text information or information on the circuit schematic diagram of the main link.

[0046] S120, based on the information on the main link, split the main link into multiple sub-links, and obtain the first port connection relationship information between each port within the sub-link and the second port connection relationship information between the ports of adjacent sub-links.

[0047] Among them, the first port connection relationship information is the port connection relationship information between each port within the sub-link. For example, the first port connection relationship information may include unique port identifiers of each port within the sub-link and can represent the port electrical connection relationship information between each port within the sub-link through the mapping relationship between each port identifier.

[0048] The second port connection relationship information is the port connection relationship information between the ports of adjacent sub-links. For example, the second port connection relationship information may include unique port identifiers of each port within the adjacent sub-links and can represent the port electrical connection relationship information between the ports of the adjacent sub-links through the mapping relationship between each port identifier.

[0049] Specifically, since the main link contains multiple connectors or cables, the main link can be split into multiple sub-links. For example, Figure 2 as shown, TX represents the transmitting chip soldered on the PCB1 circuit board, RX represents the receiving chip soldered on the PCB2 circuit board. The transmission link between the TX transmitting chip and the RX receiving chip is the main link. X1 and X2 are connectors for wire harness connection between the PCB boards, and CABLE is the wire harness connecting the PCB boards. From the transmitting end to the receiving end, the main link can be sequentially split into sub-link 1, sub-link 2, sub-link 3, sub-link 4, and sub-link 5. After splitting the main link into multiple sub-links, the port connection relationship information (the first port connection relationship information) between each port within each sub-link and the port connection relationship information (the second port connection relationship information) between the ports of adjacent sub-links can also be continuously obtained.

[0050] S130, based on the first port connection relationship information and the second port connection relationship information, generate the scattering parameter matrix corresponding to the sub-link.

[0051] Specifically, according to the first port connection relationship information among the ports within a sub-link and the second port connection relationship information among the ports of adjacent sub-links, a scattering parameter matrix corresponding to the sub-link can be constructed.

[0052] S140, cascade each scattering parameter matrix to obtain a target scattering parameter matrix corresponding to the main link, and the target scattering parameter matrix includes the port scattering parameter information corresponding to the main ports of the main link.

[0053] Among them, the input port and the output port at both ends of the main link can be referred to as the main ports. For example, Figure 2 the port of the TX transmitting chip and the port of the RX receiving chip in are the main ports of the main link.

[0054] Specifically, by participating each scattering parameter matrix in the cascade calculation, a target scattering parameter matrix corresponding to the main link can be obtained, and the target scattering parameter matrix includes the port scattering parameter information corresponding to the ports of the main link.

[0055] According to the method for determining scattering parameter information provided by the embodiments of the present application, by obtaining the information of the main link, then based on the information of the main link, the main link can be split into several sub-links, and the connection relationship (the first port connection relationship information) between the ports inside the sub-link and the connection relationship (the second port connection relationship information) between the ports of adjacent sub-links can be obtained respectively. Then, based on this detailed connection relationship information, a corresponding scattering parameter matrix is constructed for each sub-link. Finally, these matrices are cascaded to form a target scattering parameter matrix including the scattering parameter information of the main ports of the main link. By automatically calculating the scattering parameters through a programmed process, it provides an efficient and accurate solution for evaluating the signal transmission quality of complex links in modern electronic systems, realizes the automation of scattering parameter extraction and solution, reduces the manual operation steps, reduces the risk of human errors, significantly improves the efficiency of scattering parameter extraction, and compared with the related technologies that require manual import of SNP files, construction of link models, port matching and simulation and other cumbersome steps, significantly improves the accuracy and efficiency of evaluation, and does not require dependence on specific simulation software, and has a wider applicability.

[0056] Figure 3 is another schematic flow chart of the method for determining scattering parameter information provided by the embodiments of the present application.

[0057] In some embodiments, as Figure 3 shown, the information of the main link includes the connection relationship information of each port within the main link; based on the information of the main link in step S120, splitting the main link into multiple sub-links may include steps S121 and S122.

[0058] S121. Obtain information on the preset transmission direction, where the preset transmission direction is the data flow direction from the main input port to the main output port of the main link.

[0059] Specifically, the data flow direction from the main input port to the main output port in the main link can be used as the preset transmission direction. For example, Figure 2 the data flow direction from the TX chip to the RX chip in can be used as the preset transmission direction.

[0060] S122. Based on the connection relationship information of each port in the main link, split the main link into multiple sub-links along the preset transmission direction.

[0061] Specifically, reference can be continued to Figure 2 , after determining the preset transmission direction, the main link can be split along the preset transmission direction with reference to the connection relationship information of each port in the main link to obtain multiple sub-links.

[0062] Based on the connection relationship of each internal port and the preset data transmission direction in the embodiments of the present application, the complex main link is split into multiple simpler sub-links, making the analysis and processing more intuitive and efficient, and capable of improving the accuracy and efficiency of determining the scattering parameters of the entire main link subsequently.

[0063] Figure 4 It is another flow schematic diagram of the method for determining scattering parameter information provided by the embodiments of the present application.

[0064] In some embodiments, as Figure 4 shown, step S130 generates a scattering parameter matrix corresponding to each sub-link based on the first port connection relationship information and the second port connection relationship information, which may include steps S131 to S133.

[0065] S131. In the corresponding relationship between the preset sub-links and the scattering parameter files, obtain the scattering parameter files corresponding to each sub-link.

[0066] Among them, the scattering parameter file is the SNP file, and the SNP file usually has the suffix ".snp". Different sub-links correspond to different scattering parameter files, and the scattering parameter file may include the port identification information of the ports in the sub-link and the port scattering parameter information corresponding to each port.

[0067] Specifically, in the corresponding relationship between the preset sub-links and the scattering parameter files, obtain the scattering parameter files corresponding to each sub-link respectively.

[0068] S132. In the scattering parameter file corresponding to the sub-link, obtain the port scattering parameter information corresponding to each port in the sub-link.

[0069] Specifically, after obtaining the scattering parameter file corresponding to each sub-link, the port scattering parameter information corresponding to each port within the sub-link can be obtained from the scattering parameter file.

[0070] S133, based on the port scattering parameter information corresponding to each port within the sub-link, the first port connection relationship information, and the second port connection relationship information, generate the scattering parameter matrix corresponding to the sub-link.

[0071] Specifically, based on the first port connection relationship information and the second port connection relationship information, fill the port scattering parameter information corresponding to each port within the sub-link into the preset positions of the scattering parameter matrix corresponding to the sub-link, so that the scattering parameter matrix corresponding to the sub-link can be obtained, and different sub-links correspond to different scattering parameter matrices.

[0072] By combining the first port connection relationship information and the second port connection relationship information, and using the pre-associated scattering parameter file (SNP file), the embodiments of the present application can efficiently and accurately generate the scattering parameter matrices of each sub-link, which not only simplifies the determination process of the scattering parameter information, but also improves the accuracy and flexibility of parameter extraction, making the performance analysis and optimization of complex radio frequency systems more intuitive and controllable.

[0073] Figure 5 It is another flowchart of the method for determining the scattering parameter information provided by the embodiments of the present application.

[0074] In some embodiments, as Figure 5 shown, step S133, based on the port scattering parameter information corresponding to each port within the sub-link, the first port connection relationship information, and the second port connection relationship information, generating the scattering parameter matrix corresponding to the sub-link, may include steps S1331 and S1332.

[0075] S1331, based on the first port connection relationship information and the second port connection relationship information, generate the sub-link port matrix.

[0076] Specifically, based on the first port connection relationship information and the second port connection relationship information, the position of each port in the sub-link port matrix can be determined, and port identification information is filled in each position of the matrix to generate the sub-link port matrix.

[0077] S1332, based on the port scattering parameter information corresponding to each port within the sub-link and the sub-link port matrix, generate the scattering parameter matrix corresponding to the sub-link.

[0078] Specifically, the sub-link port matrix includes the port identification information of the ports within the sub-link. Therefore, the port scattering parameter information corresponding to the port identification information in the sub-link port matrix can be filled into the corresponding positions of the scattering parameter matrix to obtain the scattering parameter matrix corresponding to the sub-link.

[0079] In the embodiment of the present application, by combining the first port connection relationship information and the second port connection relationship information to generate a sub-link port matrix, and based on this sub-link port matrix and the scattering parameter information of each port within the sub-link, further generating the scattering parameter matrix corresponding to the sub-link, the efficiency of determining the scattering parameter information is improved, and the accuracy of the scattering parameter matrix is ensured.

[0080] In some embodiments, the sub-link port matrix has two columns. The first port identification information corresponding to the input ports within the sub-link is located in the first column of the sub-link port matrix, and the second port identification information corresponding to the output ports within the sub-link is located in the second column of the sub-link port matrix. The first port identification information corresponding to the target input port within the sub-link and the second port identification information corresponding to the target output port within the sub-link are located in the same row of the sub-link port matrix, and there is a connection relationship between the target input port and the target output port.

[0081] Among them, the port pairs (input ports and output ports) with electrical connection relationships within the sub-link can be referred to as target input ports and target output ports.

[0082] Specifically, the sub-link port matrix is set to include two columns of information. The first column is used to record the identification information of each input port within the sub-link, and the second column records the identification information of the corresponding output ports. And the identification information of the target input port and the target output port in the sub-link are located in the same row, so that the attributes (input ports or output ports) of each port and the direct connection relationships between the ports can be intuitively represented using the sub-link port matrix.

[0083] The embodiment of the present application uses a two-column sub-link port matrix to record the identification information of the input and output ports, and locates the identification information of the target input port and the target output port with electrical connection relationships in the same row, which can intuitively and clearly display the attributes of each port and their direct connection relationships, facilitating the identification of the target input port and target output port pairs with electrical connection relationships, improving the efficiency and accuracy of port management and configuration, and facilitating the subsequent generation of the scattering parameter matrix corresponding to the sub-link based on the port scattering parameter information corresponding to each port within the sub-link and this sub-link port matrix.

[0084] Figure 6 It is another flow schematic diagram of the method for determining the scattering parameter information provided by the embodiment of the present application.

[0085] In some embodiments, such asFigure 6 As shown, step S1332 generates a scattering parameter matrix corresponding to the sub-link based on the port scattering parameter information corresponding to each port within the sub-link and the sub-link port matrix, which may include steps S13321 and S13322.

[0086] S13321: Obtain the port arrangement order information in the sub-link port matrix.

[0087] Specifically, in the sub-link port matrix, since the sub-link port matrix is set to include two columns of information, where the first column is used to record the identification information of each input port within the sub-link, and the second column records the identification information of the corresponding output port, and the identification information of the target input port and the target output port with an electrical connection relationship in the sub-link is located in the same row, the port arrangement order information of each port within the sub-link can be obtained from the sub-link port matrix.

[0088] For example, the sub-link has two input ports and two output ports, and the sub-link port matrix is as follows:

[0089]

[0090] Among them, in1 and in2 are the input ports of the sub-link, out1 and out2 are the output ports of the sub-link, in1 has an electrical connection relationship with out1, and in2 has an electrical connection relationship with out2. In the sub-link port matrix, the port arrangement order information of each port can be obtained as: in1 -> out1 -> in2 -> out2.

[0091] S13322: Arrange the port scattering parameter information corresponding to each port within the sub-link according to the port arrangement order information to obtain the scattering parameter matrix corresponding to the sub-link.

[0092] Specifically, following the port arrangement order information, the port scattering parameter information corresponding to each port within the sub-link can also be arranged according to the port arrangement order, so that the first row of the scattering parameter matrix corresponding to the sub-link is the port scattering parameter information corresponding to the first port (such as in1), the second row is the port scattering parameter information corresponding to the second port (such as out1), and so on, thereby obtaining the scattering parameter matrix corresponding to the sub-link.

[0093] In the embodiment of the present application, the scattering parameter matrix corresponding to the sub-link can be generated through the sub-link port matrix and the port scattering parameter information. In this process, the port arrangement order is first obtained using the sub-link port matrix, and then the scattering parameter information of each port is arranged according to this order, so as to intuitively and systematically construct the scattering parameter matrix of the sub-link, which is convenient for subsequent analysis and application.

[0094] Figure 7It is another schematic flow chart of the method for determining scattering parameter information provided by an embodiment of the present application.

[0095] In some embodiments, as Figure 7 shown, step S140 cascades each scattering parameter matrix to obtain a target scattering parameter matrix corresponding to the main link, which may include steps S141 and S142.

[0096] S141, cascade the Mth scattering parameter matrix with the (M + 1)th scattering parameter matrix to obtain a cascaded scattering parameter matrix, where M is an integer greater than or equal to 1, and the sub-link corresponding to the Mth scattering parameter matrix and the sub-link corresponding to the (M + 1)th scattering parameter matrix are adjacent sub-links.

[0097] Specifically, cascading two adjacent scattering parameter matrices can obtain a cascaded scattering parameter matrix. For example, cascading the scattering parameter matrix S 1 corresponding to the first sub-link with the scattering parameter matrix S 2 corresponding to the first sub-link can obtain a cascaded scattering parameter matrix S 1+2 .

[0098] S142, cascade the cascaded scattering parameter matrix with the (M + 2)th scattering parameter matrix to obtain a target scattering parameter matrix corresponding to the main link.

[0099] Specifically, after cascading two adjacent scattering parameter matrices to obtain a cascaded scattering parameter matrix, it can continue to be cascaded with the next adjacent scattering parameter matrix to obtain a cascaded scattering parameter matrix, and so on. Through successive cascading operations, a target scattering parameter matrix corresponding to the entire main link can be obtained. For example, after obtaining the cascaded scattering parameter matrix S 1+2 , the scattering parameter matrix S 1+2 can be cascaded with the scattering parameter matrix corresponding to the third sub-link to obtain a cascaded scattering parameter matrix S 1+2+3 , and so on. Through successive cascading operations, a target scattering parameter matrix corresponding to the entire main link can be obtained.

[0100] In the embodiment of the present application, by gradually cascading the scattering parameter matrices of each sub-link, the target scattering parameter matrix of the entire main link is finally integrated. This process is not only well-organized, but also by successively cascading the scattering parameter matrices of adjacent sub-links, it can accurately reflect the overall scattering characteristics of the main link, realizing the automation of the extraction and solution of the scattering parameters of the main link.

[0101] Figure 8 It is another schematic flow chart of the method for determining scattering parameter information provided by an embodiment of the present application.

[0102] In some embodiments, such as Figure 8 shown, step S141 cascades the Mth scattering parameter matrix and the (M + 1)th scattering parameter matrix to obtain a cascaded scattering parameter matrix, which may include steps S1411 to S1413.

[0103] S1411, according to a preset matrix conversion formula, convert the Mth scattering parameter matrix into the Mth transmission matrix, and convert the (M + 1)th scattering parameter matrix into the (M + 1)th transmission matrix.

[0104] Specifically, when calculating the cascaded scattering parameter matrix of two adjacent sub-links, first, according to a preset mathematical formula, convert the scattering parameter matrix representing the scattering characteristics of the Mth sub-link into the corresponding transmission matrix form, which is used to implement cascaded calculation by multiplication. At the same time, convert the scattering parameter matrix of the adjacent (M + 1)th sub-link into the corresponding transmission matrix.

[0105] S1412, multiply the Mth transmission matrix by the (M + 1)th transmission matrix to obtain a cascaded transmission matrix.

[0106] Specifically, after converting the scattering parameter matrix representing the scattering characteristics of the Mth sub-link into the corresponding transmission matrix form according to a preset mathematical formula, and at the same time converting the scattering parameter matrix of the adjacent (M + 1)th sub-link into the corresponding transmission matrix, multiply these two transmission matrices to obtain a cascaded transmission matrix.

[0107] S1413, according to a preset matrix inverse conversion formula, perform an inverse transformation on the cascaded transmission matrix to obtain a cascaded scattering parameter matrix.

[0108] Specifically, according to a preset matrix inverse conversion formula, perform an inverse transformation on the cascaded transmission matrix to obtain a cascaded scattering parameter matrix.

[0109] The embodiments of the present application provide an efficient and accurate method for calculating the cascaded scattering parameter matrix of two adjacent sub-links. By converting the scattering parameter matrix into a transmission matrix, using the multiplication operation of the transmission matrix to implement cascaded calculation, and finally converting it back to the scattering parameter matrix, this process not only simplifies the calculation steps but also improves the accuracy and efficiency of the calculation.

[0110] In some embodiments, a sub-link includes an input port and an output port; the preset matrix conversion formula is:

[0111]

[0112] where T is the transmission matrix and S is the scattering parameter matrix;

[0113] The preset matrix inverse transformation formula is as follows:

[0114]

[0115] Wherein, T’ is the cascaded transmission matrix, and S’ is the cascaded scattering parameter matrix.

[0116] Through the preset matrix transformation formula (1) and matrix inverse transformation formula (2) in the embodiments of the present application, the conversion between the transmission matrix and the scattering parameter matrix can be efficiently performed, improving the accuracy and efficiency of calculation.

[0117] It should be noted that the sub-link may also have multiple input ports and multiple output ports. When the number of ports is different, the corresponding preset matrix transformation formula and matrix inverse transformation formula are also different. Those skilled in the art can query the corresponding matrix transformation formula and matrix inverse transformation formula according to the look-up table.

[0118] In one embodiment, the method for determining the scattering parameter information may further include step S150.

[0119] S150, generating a scattering parameter file corresponding to the main link based on the main port scattering parameter information of the main link in the target scattering parameter matrix.

[0120] In the embodiments of the present application, by integrating the main port scattering parameter information of the main link and generating a scattering parameter file, these key information can be systematically saved and conveniently accessed, providing important data support for subsequent performance evaluation, and further promoting the automation and high efficiency of the design and analysis processes.

[0121] In one embodiment, the method for determining the scattering parameter information may include:

[0122] 1) Obtaining the information of the main link.

[0123] 2) Based on the connection relationship information of each port in the main link, splitting the main link into multiple sub-links along the preset transmission direction, and obtaining the first port connection relationship information between each port in the sub-link and the second port connection relationship information between the ports of adjacent sub-links.

[0124] For example, as Figure 9As shown in the figure, the scattering parameters of a camera module with the MIPI protocol are cascaded. Here, U300 is the chip of the camera, and U400 is the connector of the connection cable harness. Specifying the transmission direction from U300 to the connector U400, the path from the MCU to the connector is sub-link 1, and the connector itself is sub-link 2. The first port connection relationship information between the ports within sub-link 1 may include that U300.MD0N is electrically connected to U400.MD0N, and U300.MD0P is electrically connected to U400.MD0P. The first port connection relationship information between the ports within sub-link 2 may include that U400.MD0N is electrically connected to U400.MD0N.SENSOR, and U400.MD0P is electrically connected to U400.MD0P.SENSOR.

[0125] It should be noted that since the electrical connection relationship between the output port of sub-link 1 and an input port of sub-link 2 can be determined according to the second port connection relationship information between the ports of adjacent sub-links, the identification information of the output port of sub-link 1 and the input port of sub-link 2 with which it has an electrical connection relationship can be the same or different.

[0126] 3) Generate the scattering parameter matrix corresponding to the sub-link based on the first port connection relationship information and the second port connection relationship information.

[0127] 3.1) In the preset correspondence between the sub-link and the scattering parameter file, obtain the scattering parameter files corresponding to each sub-link; in the scattering parameter file corresponding to the sub-link, obtain the port scattering parameter information corresponding to each port within the sub-link.

[0128] In an example, you can continue to refer to Figure 9 , the way to obtain the scattering parameter file of each sub-link is as follows: obtain the scattering parameter files (SNP files) of U300 to the connector U400 and the connector U400 itself. Among them, the SNP file of U300 to the connector U400 is obtained by simulation, and the SNP file of the connector U400 is provided by the manufacturer. The data column naming rule of the scattering parameter file (SNP file) is that the data columns from left to right are S11, S12,..., S1n, S21, S22..., S2n, Sm1, Sm2,..., Smn (n is the number of ports and n = m).

[0129] For example, you can continue to refer to Figure 9 , the sub-link port matrix of sub-link 1 is:

[0130]

[0131] Among them, U300.MD0N and U300.MD0P are the input ports of sub-link 1, U400.MD0N and U400.MD0P are the output ports of sub-link 1, U300.MD0N has an electrical connection with U400.MD0N, and U300.MD0P has an electrical connection with U400.MD0P.

[0132] 3.2) Generate a sub-link port matrix based on the first port connection relationship information and the second port connection relationship information. The sub-link port matrix has two columns. The first port identification information corresponding to the input ports within the sub-link is located in the first column of the sub-link port matrix, and the second port identification information corresponding to the output ports within the sub-link is located in the second column of the sub-link port matrix. The first port identification information corresponding to the target input port within the sub-link and the second port identification information corresponding to the target output port within the sub-link are located in the same row of the sub-link port matrix, and the target input port and the target output port have a connection relationship.

[0133] 3.3) In the sub-link port matrix, obtain the port arrangement order information; arrange the port scattering parameter information corresponding to each port within the sub-link according to the port arrangement order information to obtain the scattering parameter matrix corresponding to the sub-link.

[0134] 4) Cascade each scattering parameter matrix to obtain the target scattering parameter matrix corresponding to the main link. The target scattering parameter matrix includes the port scattering parameter information corresponding to the main ports of the main link.

[0135] 4.1) According to the preset matrix conversion formula (see the above formula 1), convert the Mth scattering parameter matrix into the Mth transmission matrix, and convert the (M + 1)th scattering parameter matrix into the (M + 1)th transmission matrix.

[0136] 4.2) Multiply the Mth transmission matrix by the (M + 1)th transmission matrix to obtain the cascaded transmission matrix;

[0137] 4.3) According to the preset matrix inverse conversion formula (see the above formula 2), perform an inverse transformation on the cascaded transmission matrix to obtain the cascaded scattering parameter matrix.

[0138] 4.4) Cascade the cascaded scattering parameter matrix with the (M + 2)th scattering parameter matrix to obtain the target scattering parameter matrix corresponding to the main link.

[0139] For example, you can continue to refer to Figure 9, the sub-link port matrix corresponding to sub-link 1 is denoted as P1, and the sub-link port matrix corresponding to sub-link 2 is denoted as P2. It is stipulated that the first column of the port matching matrix is the input port identification information, and the second column is the output port identification information. The specific process of converting the sub-link port matrix P1 into a scattering parameter matrix S1 and converting the sub-link port matrix P2 into a scattering parameter matrix S2 is as follows:

[0140]

[0141] Among them, port1 is the input port U300.MD0N of sub-link 1, and the port scattering parameters corresponding to the input port U300.MD0N of sub-link 1 are S11, S13, S12, and S14. port3 is the output port U400.MD0N of sub-link 1, and the port scattering parameters corresponding to the output port U400.MD0N of sub-link 1 are S31, S33, S32, and S34. And so on.

[0142] Next, using the preset matrix conversion formula, the scattering parameter matrix S1 corresponding to sub-link 1 and the scattering parameter matrix S2 corresponding to sub-link 2 can be respectively converted into transmission matrices T1 and T2, and then T1 and T2 are multiplied to obtain the cascaded transmission matrix T':

[0143] T' = T 1 *T 2

[0144] Calculate the cascaded T' matrix, and then use the preset matrix inverse conversion formula to convert the T' matrix into an S' matrix, so as to obtain the cascaded scattering parameter matrix. Then, using the naming rule of the SNP file, the cascaded S parameter matrix can be restored to the data in the SNP file format.

[0145] The embodiment of the present application proposes a mathematical model for converting a port matrix into a scattering parameter matrix and calculating the cascaded scattering parameters through Formula 1 and Formula 2, which can realize the automatic matching calculation of scattering parameter data without the support of additional simulation software.

[0146] Based on the same inventive concept, the embodiment of the present application also provides a device for determining scattering parameter information, as Figure 10 shown. The device 1000 may include an acquisition module 1010, a splitting module 1020, a generation module 1030, and a cascading module 1040.

[0147] The acquisition module 1010 is used to acquire the information of the main link;

[0148] The splitting module 1020 is configured to split the main link into multiple sub-links based on the information of the main link, and obtain the first port connection relationship information between each port within the sub-link and the second port connection relationship information between the ports of adjacent sub-links;

[0149] The generating module 1030 is configured to generate a scattering parameter matrix corresponding to the sub-link based on the first port connection relationship information and the second port connection relationship information;

[0150] The cascading module 1040 is configured to cascade each scattering parameter matrix to obtain a target scattering parameter matrix corresponding to the main link, and the target scattering parameter matrix includes the port scattering parameter information corresponding to the main port of the main link.

[0151] According to the apparatus for determining scattering parameter information provided by the embodiments of the present application, by obtaining the information of the main link, the main link can be split into several sub-links based on the information of the main link, and the connection relationship (the first port connection relationship information) between the ports within the sub-link and the connection relationship (the second port connection relationship information) between the ports of adjacent sub-links can be obtained respectively. Then, based on these detailed connection relationship information, a corresponding scattering parameter matrix is constructed for each sub-link. Finally, these matrices are cascaded to form a target scattering parameter matrix including the scattering parameter information of the main port of the main link. By automatically calculating the scattering parameter through a programmed process, it provides an efficient and accurate solution for the signal transmission quality evaluation of complex links in modern electronic systems, realizes the automation of scattering parameter extraction and solution, reduces the manual operation steps, reduces the risk of human errors, significantly improves the efficiency of scattering parameter extraction. Compared with the related technologies that require manual import of SNP files, construction of link models, port matching and simulation and other cumbersome steps, it significantly improves the accuracy and efficiency of evaluation, and does not require dependence on specific simulation software, and has a wider applicability.

[0152] In some embodiments, the information of the main link includes the connection relationship information of each port within the main link; the splitting module is configured to split the main link into multiple sub-links based on the information of the main link, and specifically can be used for:

[0153] Obtain the information of the preset transmission direction, where the preset transmission direction is the data flow direction from the main input port to the main output port of the main link;

[0154] Based on the connection relationship information of each port within the main link, split the main link into multiple sub-links along the preset transmission direction.

[0155] In some embodiments, the generating module is configured to generate a scattering parameter matrix corresponding to each sub-link based on the first port connection relationship information and the second port connection relationship information, and specifically can be used for:

[0156] In the preset correspondence between sub-links and scattering parameter files, obtain the scattering parameter files corresponding to each sub-link;

[0157] In the scattering parameter file corresponding to the sub-link, obtain the port scattering parameter information corresponding to each port within the sub-link;

[0158] Based on the port scattering parameter information corresponding to each port within the sub-link, the first port connection relationship information, and the second port connection relationship information, generate the scattering parameter matrix corresponding to the sub-link.

[0159] In some embodiments, the generation module is used to generate the scattering parameter matrix corresponding to the sub-link based on the port scattering parameter information corresponding to each port within the sub-link, the first port connection relationship information, and the second port connection relationship information, and is specifically used for:

[0160] Based on the first port connection relationship information and the second port connection relationship information, generate the sub-link port matrix;

[0161] Based on the port scattering parameter information corresponding to each port within the sub-link and the sub-link port matrix, generate the scattering parameter matrix corresponding to the sub-link.

[0162] In some embodiments, the sub-link port matrix has two columns. The first port identification information corresponding to the input port within the sub-link is located in the first column of the sub-link port matrix, and the second port identification information corresponding to the output port within the sub-link is located in the second column of the sub-link port matrix. The first port identification information corresponding to the target input port within the sub-link and the second port identification information corresponding to the target output port within the sub-link are located in the same row of the sub-link port matrix, and the target input port and the target output port have a connection relationship.

[0163] In some embodiments, the generation module is used to generate the scattering parameter matrix corresponding to the sub-link based on the port scattering parameter information corresponding to each port within the sub-link and the sub-link port matrix, and is specifically used for:

[0164] In the sub-link port matrix, obtain the port arrangement order information;

[0165] According to the port arrangement order information, arrange the port scattering parameter information corresponding to each port within the sub-link to obtain the scattering parameter matrix corresponding to the sub-link.

[0166] In some embodiments, the cascading module is used to cascade each scattering parameter matrix to obtain the target scattering parameter matrix corresponding to the main link, and is specifically used for:

[0167] Cascade the Mth scattering parameter matrix and the (M + 1)th scattering parameter matrix to obtain a cascaded scattering parameter matrix, where M is an integer greater than or equal to 1, and the sub-link corresponding to the Mth scattering parameter matrix and the sub-link corresponding to the (M + 1)th scattering parameter matrix are adjacent sub-links;

[0168] Cascade the cascaded scattering parameter matrix and the (M + 2)th scattering parameter matrix to obtain the target scattering parameter matrix corresponding to the main link.

[0169] In some embodiments, the cascading module is used to cascade the Mth scattering parameter matrix and the (M + 1)th scattering parameter matrix to obtain a cascaded scattering parameter matrix, and specifically can be used for:

[0170] According to a preset matrix conversion formula, convert the Mth scattering parameter matrix into the Mth transmission matrix, and convert the (M + 1)th scattering parameter matrix into the (M + 1)th transmission matrix;

[0171] Multiply the Mth transmission matrix and the (M + 1)th transmission matrix to obtain a cascaded transmission matrix;

[0172] According to a preset matrix inverse conversion formula, perform an inverse transformation on the cascaded transmission matrix to obtain a cascaded scattering parameter matrix.

[0173] In some embodiments, a sub-link includes an input port and an output port; the preset matrix conversion formula is:

[0174]

[0175] where T is the transmission matrix and S is the scattering parameter matrix;

[0176] The preset matrix inverse conversion formula is:

[0177]

[0178] where T' is the cascaded transmission matrix and S' is the cascaded scattering parameter matrix.

[0179] Each module in the scattering parameter information determination device provided by the embodiments of the present application can implement Figures 1 to 9 the functions of each step of the scattering parameter information determination method provided, and can achieve its corresponding technical effects. For the sake of brevity, it will not be elaborated here.

[0180] Figure 11 FIG. shows a schematic hardware structure diagram of the scattering parameter information determination device provided by the embodiments of the present application.

[0181] The device for determining scattering parameter information may include a processor 1101 and a memory 1102 storing computer program instructions.

[0182] Specifically, the above-mentioned processor 1101 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more integrated circuits for implementing the embodiments of the present application.

[0183] The memory 1102 may include a mass storage for data or instructions. By way of example and not limitation, the memory 1102 may include a Hard Disk Drive (HDD), a floppy disk drive, a flash memory, an optical disc, a magneto-optical disc, a magnetic tape, or a Universal Serial Bus (USB) drive, or a combination of two or more of these. In a suitable case, the memory 1102 may include removable or non-removable (or fixed) media. In a suitable case, the memory 1102 may be internal or external to the device for determining scattering parameter information. In a specific embodiment, the memory 1102 is a non-volatile solid-state memory.

[0184] The memory may include a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk storage media device, an optical storage media device, a flash memory device, an electrical, optical, or other physical / tangible memory storage device. Thus, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of the present disclosure.

[0185] The processor 1101 reads and executes the computer program instructions stored in the memory 1102 to implement any one of the methods for determining scattering parameter information in the above embodiments.

[0186] In one example, the device for determining scattering parameter information may further include a communication interface 1103 and a bus 1104. Among them, as Figure 11 shown, the processor 1101, the memory 1102, and the communication interface 1103 are connected through the bus 1104 and complete communication with each other.

[0187] The communication interface 1103 is mainly used to implement communication between various modules, devices, units, and / or devices in the embodiments of the present application.

[0188] Bus 1104 includes hardware, software, or both, and couples components of the apparatus for determining scattering parameter information to each other. By way of example and not limitation, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a MicroChannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (Peripheral Component Interconnect-X, PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VESA Local Bus, VLB) bus, or other suitable bus or a combination of two or more of these. Where appropriate, bus 1104 may include one or more buses. Although embodiments of the present application describe and illustrate specific buses, the present application contemplates any suitable bus or interconnect.

[0189] The apparatus may execute the method for determining scattering parameter information in the embodiments of the present application based on each unit / component in the apparatus for determining scattering parameter information, so as to implement the combination Figures 1 to 8 of the method for determining scattering parameter information described.

[0190] In addition, in combination with the method for determining scattering parameter information in the above embodiments, embodiments of the present application may provide a computer storage medium for implementation. Computer program instructions are stored on the computer storage medium; when the computer program instructions are executed by a processor, any one of the methods for determining scattering parameter information in the above embodiments is implemented.

[0191] The present application also provides a computer program product, when instructions in the computer program product are executed by a processor of an electronic device, the electronic device is caused to execute each process of implementing any one of the above embodiments of the method for determining scattering parameter information.

[0192] It should be clear that the present application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications, and additions, or change the order between steps after understanding the spirit of the present application.

[0193] The functional blocks shown in the above-described structural block diagrams can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a functional card, and so on. When implemented in software, the elements of the present application are programs or code segments used to perform the required tasks. The program or code segment can be stored in a machine-readable medium or transmitted via a data signal carried in a carrier wave on a transmission medium or a communication link. A "machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, read-only memory (ROM), flash memory, erasable read-only memory (EROM), floppy disks, compact disc read-only memory (CD-ROM), optical discs, hard disks, fiber optic media, radio frequency (RF) links, and so on. The code segment can be downloaded via a computer network such as the Internet, an intranet, and so on.

[0194] It should also be noted that in the exemplary embodiments mentioned in the present application, some methods or systems are described based on a series of steps or devices. However, the present application is not limited to the order of the above steps, that is, the steps can be executed in the order mentioned in the embodiments, or different from the order in the embodiments, or several steps can be executed simultaneously.

[0195] Aspects of the present disclosure have been described above with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each block in the flowchart and / or block diagram, and the combinations of blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the functions / operations specified in one or more blocks of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It should also be understood that each block in the block diagram and / or flowchart, and the combinations of blocks in the block diagram and / or flowchart, can also be implemented by dedicated hardware that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0196] The above is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and these modifications or substitutions should all be covered by the protection scope of the present application.

Claims

1. A method for determining scattering parameter information, characterized in that: include: Get the information of the main link; Based on the information of the main link, split the main link into multiple sub-links, and obtain first port connection relationship information between ports in the sub-links and second port connection relationship information between ports of adjacent sub-links; Based on the first port connection relationship information and the second port connection relationship information, generating a scattering parameter matrix corresponding to the sub-link; The scattering parameter matrices are cascaded to obtain a target scattering parameter matrix corresponding to the main link, wherein the target scattering parameter matrix includes port scattering parameter information corresponding to the main port of the main link.

2. The method according to claim 1, characterized in that The information of the main link includes connection relationship information of each port in the main link; The step of splitting the main link into a plurality of sub-links based on the information of the main link includes: Acquire information of a preset transmission direction, wherein the preset transmission direction is a data flow direction from a primary input port to a primary output port of a primary link; Based on the connection relationship information of each port in the main link, the main link is split into multiple sub-links along a preset transmission direction.

3. The method according to claim 1, characterized in that The generating, based on the first port connection relationship information and the second port connection relationship information, a scattering parameter matrix corresponding to each sub-link includes: In the preset correspondence between the sub-links and the scattering parameter files, obtaining the scattering parameter files corresponding to the sub-links; In the scattering parameter file corresponding to the sub-link, obtaining the port scattering parameter information corresponding to each port in the sub-link; A scattering parameter matrix corresponding to the sub-link is generated based on the port scattering parameter information corresponding to each port in the sub-link, the first port connection relationship information, and the second port connection relationship information.

4. The method according to claim 3, characterized in that The generating a scattering parameter matrix corresponding to the sub-link based on the port scattering parameter information corresponding to each port in the sub-link, the first port connection relationship information, and the second port connection relationship information includes: generating a sub-link port matrix based on the first port connection relationship information and the second port connection relationship information; Based on the port scattering parameter information corresponding to each port in the sub-link and the sub-link port matrix, a scattering parameter matrix corresponding to the sub-link is generated.

5. The method according to claim 4, characterized in that The sub-link port matrix has two columns, the first port identification information corresponding to the input port in the sub-link is located in the first column of the sub-link port matrix, the second port identification information corresponding to the output port in the sub-link is located in the second column of the sub-link port matrix, the first port identification information corresponding to the target input port in the sub-link and the second port identification information corresponding to the target output port in the sub-link are located in the same row of the sub-link port matrix, and the target input port has a connection relationship with the target output port.

6. The method according to claim 5, characterized in that The generating a scattering parameter matrix corresponding to the sub-link based on the port scattering parameter information corresponding to each port in the sub-link and the sub-link port matrix comprises: In the sub-link port matrix, obtaining port arrangement order information; According to the port arrangement sequence information, the port scattering parameter information corresponding to each port in the sub-link is arranged to obtain a scattering parameter matrix corresponding to the sub-link.

7. The method according to any one of claims 1 to 6, characterized in that: The step of cascading the scattering parameter matrices to obtain a target scattering parameter matrix corresponding to the main link includes: Cascading the Mth scattering parameter matrix with the M+1th scattering parameter matrix to obtain a cascaded scattering parameter matrix, wherein M is an integer greater than or equal to 1, and the sublink corresponding to the Mth scattering parameter matrix and the sublink corresponding to the M+1th scattering parameter matrix are adjacent sublinks; The cascaded scattering parameter matrix is ​​cascaded with the M+2 th scattering parameter matrix to obtain a target scattering parameter matrix corresponding to the main link.

8. The method according to claim 7, characterized in that The step of cascading the Mth scattering parameter matrix and the M+1th scattering parameter matrix to obtain a cascaded scattering parameter matrix includes: According to a preset matrix conversion formula, the Mth scattering parameter matrix is ​​converted into the Mth transmission matrix, and the M+1th scattering parameter matrix is ​​converted into the M+1th transmission matrix; Multiplying the Mth transmission matrix by the M+1th transmission matrix to obtain a cascaded transmission matrix; According to a preset matrix inverse transformation formula, the cascaded transmission matrix is ​​inversely transformed to obtain a cascaded scattering parameter matrix.

9. The method according to claim 8, characterized in that The sub-link includes an input port and an output port; the preset matrix conversion formula is: Wherein, T is the transmission matrix, and S is the scattering parameter matrix; The preset matrix inverse conversion formula is: Wherein, the T' is the transmission matrix after cascading, and the S' is the scattering parameter matrix after cascading.

10. A device for determining scattering parameter information, characterized in that: include: An acquisition module, used to acquire information of the main link; A splitting module, used to split the main link into multiple sub-links based on the information of the main link, and obtain first port connection relationship information between ports in the sub-links and second port connection relationship information between ports of adjacent sub-links; A generating module, configured to generate a scattering parameter matrix corresponding to a sub-link based on the first port connection relationship information and the second port connection relationship information; The cascading module is used to cascade the scattering parameter matrices to obtain a target scattering parameter matrix corresponding to the main link, wherein the target scattering parameter matrix includes port scattering parameter information corresponding to the main port of the main link.

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