Low-noise active automatic phase shift method and system

Abstract

The invention discloses a low-noise active automatic phase shifting method and system, and the method comprises the steps: collecting a signal phase, a pre-amplifier input signal and a pre-amplifier output signal, and compiling the collected data into a phase data set, an input data set and an output data set; calculating a signal gain, a phase compensation amount, and a phase difference based on data incorporated into the phase data set, the input data set, and the output data set; performing phase shifting according to the phase difference to generate phase-shifted signal information; calculating a signal-to-noise ratio and phase shift signal stability according to the phase-shifted signal information, judging a phase-shifted signal state, and generating a phase shift signal detection report; and outputting a phase shift signal detection report to a display terminal to realize high-precision phase shift of the signal. According to the invention, signal phase shift is realized, the cost is low, and the popularization and promotion of the phase shift technology in wireless communication application are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of signal processing, and in particular to a low-noise active automatic phase shifting method and system. Background Art

[0002] Phase shift refers to the phase change of a signal in time. In AC signals, phase shift is usually expressed as an angle, which indicates the offset of the signal waveform relative to a reference time point. Phase shift can add a certain time delay or advance to the phase of the signal, thereby changing its relationship with other signals. In many applications, especially in communication systems, it is crucial to synchronize different signals. Phase shift can ensure that the signals are aligned on the same time basis for correct decoding or processing. At the same time, phase shift can be used to adjust the stability of the control system. By adjusting the phase of the feedback signal, it can be ensured that the system will not oscillate. Especially in complex dynamic systems, phase shift is an important means of adjusting the feedback mechanism.

[0003] Currently, signal phase shifting is mostly achieved through high-performance phase shifters on the market. However, the high manufacturing cost of high-performance phase shifters has limited the popularization and promotion of this technology in wireless communication applications. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above existing problems, the present invention is proposed.

[0006] Therefore, the present invention provides a low-noise active automatic phase shifting method and system to solve the problem of high cost of existing phase shifting methods.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] In a first aspect, the present invention provides a low-noise active automatic phase shifting method, comprising:

[0009] collecting signal phase, preamplifier input signal and preamplifier output signal, and compiling the collected data into a phase data set, an input data set and an output data set;

[0010] Calculate signal gain, phase compensation, and phase difference based on data encoded into the phase data set, the input data set, and the output data set;

[0011] Performing phase shifting according to the phase difference to generate phase-shifted signal information;

[0012] Calculate the signal-to-noise ratio and the stability of the phase-shifted signal according to the signal information after the phase shift, determine the signal state after the phase shift, and generate a phase-shifted signal detection report;

[0013] The phase shift signal detection report is output to the display terminal to achieve high-precision phase shifting of the signal.

[0014] As a preferred solution of the low-noise active automatic phase shifting method of the present invention, wherein:

[0015] The step of compiling the collected data into the phase data set includes compiling the collected signal phase into the phase data set, compiling the collected preamplifier input signal into the input data set, and compiling the collected preamplifier output signal into the output data set;

[0016] The phase data set is represented as:

[0017]

[0018] The input data set is represented as:

[0019]

[0020] The output dataset is represented as:

[0021]

[0022] As a preferred solution of the low-noise active automatic phase shifting method of the present invention, wherein:

[0023] The specific calculation formula for calculating the signal gain is:

[0024]

[0025] Among them, X hzy Represents the signal gain, S cxh Represents the output signal, S rxh Indicates the input signal.

[0026] As a preferred solution of the low-noise active automatic phase shifting method of the present invention, wherein:

[0027] The specific calculation formula for calculating the phase compensation amount is expressed as:

[0028]

[0029] Among them, X wbc Indicates the phase compensation amount, f atc represents the target signal frequency, T mRepresents the signal sampling period, N s Indicates the number of signal sampling points in one cycle.

[0030] As a preferred solution of the low-noise active automatic phase shifting method of the present invention, wherein:

[0031] The specific calculation formula for calculating the phase difference is:

[0032] X wcz =S rxw -C kxw

[0033] Among them, X wcz Represents the phase difference, S rxw Indicates the input phase, C kxw Indicates the reference phase received by the system.

[0034] As a preferred solution of the low-noise active automatic phase shifting method of the present invention, wherein:

[0035] The specific calculation formula for calculating the signal-to-noise ratio is:

[0036]

[0037] Among them, X zbl represents the signal-to-noise ratio, P xnh Represents the phase-shifted signal, P zos The signal noise after phase shifting is represented. The logarithm of the ratio of the signal after phase shifting to the signal noise after phase shifting is multiplied by 10 to evaluate the signal quality after phase shifting.

[0038] As a preferred solution of the low-noise active automatic phase shifting method of the present invention, wherein:

[0039] The specific calculation formula for calculating the stability of the phase-shifted signal is as follows:

[0040]

[0041] Among them, Y xdx Indicates the stability of the phase shift signal, N indicates the number of stability measurements, X wcz represents the phase difference, Indicates the average value of the phase difference.

[0042] In a second aspect, the present invention provides a low-noise active automatic phase shifting system, comprising:

[0043] A signal source acquisition module, used for acquiring signal phase, preamplifier input signal and preamplifier output signal, and compiling the acquired data into a phase data set, an input data set and an output data set;

[0044] A data analysis module, for calculating a signal gain, a phase compensation amount, and a phase difference based on data encoded into the phase data set, the input data set, and the output data set;

[0045] A phase shift module, used to perform phase shifting according to the phase difference and generate signal information after phase shifting;

[0046] A phase detection module is used to calculate the signal-to-noise ratio and the stability of the phase-shifted signal according to the signal information after the phase shift, determine the signal state after the phase shift, and generate a phase-shifted signal detection report;

[0047] The output module is used to output the phase shift signal detection report to the display terminal to achieve high-precision phase shifting of the signal.

[0048] In a third aspect, the present invention provides a computing device, comprising:

[0049] Memory, used to store programs;

[0050] The processor is used to execute the computer executable instructions, and the computer executable instructions, when executed by the processor, implement the steps of the low-noise active automatic phase shifting method.

[0051] In a fourth aspect, the present invention provides a computer-readable storage medium, comprising: when the program is executed by a processor, the steps of implementing the low-noise active automatic phase shifting method are implemented.

[0052] Beneficial effects of the present invention: The present invention collects signal phase, preamplifier input signal and preamplifier output signal through a signal source acquisition module. The data analysis module calculates the signal gain, phase compensation amount and phase difference according to the above transmission data, and transmits the calculated numerical phase difference to the phase shift module. The phase shift module performs phase shifting according to the value of the transmission phase difference, and transmits the signal information after the phase shift to the phase detection module. The phase detection module calculates the signal-to-noise ratio and the stability of the phase shifted signal according to the signal information after the phase shift to determine the signal state after the phase shift, and generates a phase shift signal detection report and transmits it to the output module. The output module transmits the phase shift signal detection report to the display terminal. Signal phase shifting is achieved by constructing a low-noise active automatic phase shifting system. This method has low cost and improves the popularization and promotion of phase shifting technology in wireless communication applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0054] Figure 1A basic flow chart of a low-noise active automatic phase shifting method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0057] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0058] The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0059] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Example 1

[0062] Reference Figure 1 , as an embodiment of the present invention, provides a low-noise active automatic phase shifting method, comprising:

[0063] S1: Collect signal phase, preamplifier input signal and preamplifier output signal, and compile the collected data into a phase data set, an input data set and an output data set;

[0064] In an embodiment of the present application, compiling the collected data into a phase data set includes compiling the collected signal phase into a phase data set, compiling the collected preamplifier input signal into an input data set, and compiling the collected preamplifier output signal into an output data set;

[0065] In the embodiment of the present application, the phase data set is represented as:

[0066]

[0067] In the embodiment of the present application, the input data set is represented as:

[0068]

[0069] In the embodiment of the present application, the output data set is represented as:

[0070]

[0071] S2: Calculate signal gain, phase compensation and phase difference based on the data in the phase data set, the input data set and the output data set;

[0072] In the embodiment of the present application, the signal gain is calculated, and the specific calculation formula is expressed as:

[0073]

[0074] Among them, X hzy Represents the signal gain, S cxh Represents the output signal, S rxh Indicates the input signal.

[0075] In the embodiment of the present application, the phase compensation amount is calculated, and the specific calculation formula is expressed as:

[0076]

[0077] Among them, X wbc Indicates the phase compensation amount, f atc represents the target signal frequency, T m Represents the signal sampling period, N sIndicates the number of signal sampling points in one cycle.

[0078] In the embodiment of the present application, the phase difference is calculated, and the specific calculation formula is expressed as:

[0079] X wcz =S rxw -C kxw

[0080] Among them, X wcz Represents the phase difference, S rxw Indicates the input phase, C kxw Indicates the reference phase received by the system.

[0081] It should be noted that the calculation of the phase compensation amount can design a phase compensation network, improve the dynamic response and stability of the system, avoid oscillation or instability, and by compensating for the phase deviation, reduce the phase error caused by multipath interference, ensuring that the signal is more accurate and consistent;

[0082] It should be noted that in a multi-channel signal processing system, calculating the phase difference can help achieve signal synchronization, ensure that the various parts of the system work together, and reduce the problems caused by delays and phase differences. In a time division multiplexing or frequency division multiplexing system, accurately calculating the phase difference can ensure that the signal is transmitted on time, avoid interference, and improve channel utilization;

[0083] It should be noted that understanding signal gain helps design and adjust amplifiers to ensure that the signal maintains sufficient strength during transmission, overcome transmission losses, and improve the overall performance of the system. By calculating the gain, the strength of the signal relative to the noise can be effectively evaluated, thereby optimizing the amplification circuit and reducing the impact of noise on signal quality.

[0084] S3: Perform phase shifting according to the phase difference to generate phase-shifted signal information;

[0085] S4: Calculate the signal-to-noise ratio and the stability of the phase-shifted signal according to the signal information after the phase shift, determine the signal state after the phase shift, and generate a phase-shifted signal detection report;

[0086] In the embodiment of the present application, the signal-to-noise ratio is calculated, and the specific calculation formula is expressed as:

[0087]

[0088] Among them, X zbl represents the signal-to-noise ratio, P xnh Represents the phase-shifted signal, P zos It represents the signal noise after phase shifting. The signal quality after phase shifting is evaluated by taking the logarithm of the ratio of the two and multiplying it by 10.

[0089] In the embodiment of the present application, the stability of the phase shift signal is calculated, and the specific calculation formula is expressed as:

[0090]

[0091] Among them, Y xdx Indicates the stability of the phase shift signal, N indicates the number of stability measurements, X wcz represents the phase difference, Indicates the average value of the phase difference.

[0092] S5: Output the phase shift signal detection report to the display terminal to achieve high-precision phase shifting of the signal.

[0093] This embodiment also provides a low-noise active automatic phase shifting system, including:

[0094] A signal source acquisition module, used for acquiring signal phase, preamplifier input signal and preamplifier output signal, and compiling the acquired data into a phase data set, an input data set and an output data set;

[0095] A data analysis module, for calculating a signal gain, a phase compensation amount, and a phase difference based on data encoded into the phase data set, the input data set, and the output data set;

[0096] A phase shift module, used to perform phase shifting according to the phase difference and generate signal information after phase shifting;

[0097] A phase detection module is used to calculate the signal-to-noise ratio and the stability of the phase-shifted signal according to the signal information after the phase shift, determine the signal state after the phase shift, and generate a phase-shifted signal detection report;

[0098] The output module is used to output the phase shift signal detection report to the display terminal.

[0099] Furthermore, it also includes:

[0100] Memory, used to store programs;

[0101] A processor is used for loading the program to execute the low-noise active automatic phase shifting method.

[0102] This embodiment also provides a computer-readable storage medium storing a program, and when the program is executed by a processor, the low-noise active automatic phase shifting method is implemented.

[0103] The storage medium proposed in this embodiment and the low-noise active automatic phase shifting method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0104] Through the above description of the implementation methods, the technicians in the relevant field can clearly understand that the present invention can be implemented by means of software and necessary general hardware, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ReadOnly, Memory, ROM), random access memory (RandomAccess Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform the methods of various embodiments of the present invention.

[0105] Example 2

[0106] This is an embodiment of the present invention, which provides a low-noise active automatic phase shifting system, which includes a signal source acquisition module, a data analysis module, a phase shifting module, a phase detection module and an output module, wherein:

[0107] In the embodiment of the present application, the signal source acquisition module includes acquiring signal phase, preamplifier input signal and preamplifier output signal, and compiling the above-collected data into a phase data set, an input data set and an output data set, and transmitting the data compiled into the phase data set, the input data set and the output data set to the data analysis module;

[0108] It should be noted that the signal source acquisition module is designed to efficiently and accurately obtain the phase information of the signal and the input and output signals of the preamplifier. This module not only undertakes the task of signal acquisition, but also ensures the integrity and reliability of the signal during transmission, so as to facilitate subsequent data analysis and processing;

[0109] In the embodiment of the present application, the signal source acquisition module is first responsible for real-time monitoring of external signals. It receives inputs from different signal sources, including analog signals and digital signals, and converts these signals into digital form through a high-speed analog-to-digital converter for transmission and processing. In this process, the clock circuit and phase detection circuit inside the module play a vital role to ensure that the phase information of the signal can be accurately captured, which is very important for many signal processing applications, such as demodulation of phase modulated signals, phase noise analysis, etc.

[0110] In the embodiment of the present application, the input signal of the preamplifier enters the preamplifier part of the signal source acquisition module after conversion. The preamplifier here is responsible for enhancing weak signals to improve the signal-to-noise ratio and ensure that subsequent signal processing can be more accurate. The preamplifier usually adopts a high-gain, low-noise amplifier design to reduce the noise introduced by the amplifier itself and improve the detectability of the signal;

[0111] In the embodiment of the present application, after collecting the signal, the signal source acquisition module also processes the output signal of the preamplifier. This process may include further signal conditioning, such as filtering and denoising, to ensure that the output signal is clear enough so that the subsequent data analysis module can obtain more accurate information. The digital signal processing technology can perform various algorithm processing on the collected signal to extract the required features;

[0112] In the embodiment of the present application, the processed signal and phase information are transmitted to the data analysis module. In order to ensure the real-time and reliability of data transmission, a high-speed serial communication interface and a suitable protocol are usually used for data transmission. In this process, the transmission quality of the signal is very important. Usually, necessary measures need to be taken, such as error detection and correction, to ensure the integrity and consistency of the data during the transmission process.

[0113] In the embodiment of the present application, the data analysis module includes calculating the signal gain, phase compensation amount and phase difference according to the above-mentioned transmission data, and transmitting the calculated numerical phase difference to the phase shift module;

[0114] In the embodiment of the present application, the phase shifting module includes performing phase shifting according to the value of the transmission phase difference, and transmitting the phase-shifted signal information to the phase detection module;

[0115] In the embodiment of the present application, the phase shift module is an important signal processing unit, which is specifically responsible for performing corresponding signal phase shift processing according to the transmission phase difference of the input signal. The core of this process is to accurately control the phase of the signal to ensure that the signal can maintain the required relative phase relationship with other signals when it is transmitted to the next stage;

[0116] In the embodiment of the present application, the phase shift module receives an original signal, which may have a phase difference due to path differences, medium characteristics or other factors. In the module, for the known phase difference value, the phase shift module will modify the signal accordingly through a specific algorithm and circuit design, such as a phase-locked loop or a digital signal processor. These technologies can achieve linear adjustment of the phase to ensure that the signal can adapt to subsequent processing or match the phase requirements of other signals;

[0117] In the embodiment of the present application, the phase of the signal after the phase shifting process has changed compared with the original signal, and can be applied to multiple application scenarios in the plan. The signal after the phase shifting process will be sent to the next processing stage, that is, the phase detection module;

[0118] In the embodiment of the present application, the phase detection module includes calculating the signal-to-noise ratio and the stability of the phase-shifted signal according to the signal information after the phase shift to determine the signal state after the phase shift, and generating a phase-shifted signal detection report to be transmitted to the output module;

[0119] In the embodiment of the present application, monitoring the signal-to-noise ratio can help identify problems in signal transmission, such as interference, attenuation or distortion. By analyzing the changes in the signal-to-noise ratio, engineers can quickly locate potential faults and take appropriate measures to repair them. The signal quality after phase shifting is evaluated by taking the logarithm of the ratio of the two and multiplying it by 10. The calculation of the signal-to-noise ratio provides an important basis for the development of signal processing algorithms. Designers can optimize filtering, modulation and demodulation algorithms in a targeted manner according to the performance under different signal-to-noise ratio conditions to adapt to different application scenarios.

[0120] The stability of the phase-shifted signal directly affects the phase relationship between multiple signals, especially in multi-channel signal processing and phased array radar. Ensuring the stability of the phase-shifted signal helps improve system performance and signal synchronization. In practical applications, the signal may be affected by a variety of interference factors. The stability calculation of the phase-shifted signal can help design a more robust system and ensure that the signal can maintain the predetermined phase characteristics even in a changing environment.

[0121] In an embodiment of the present application, the output module includes transmitting the phase shift signal detection report to a display terminal for user viewing and analysis.

[0122] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A low-noise active automatic phase shifting method, characterized in that: include: collecting signal phase, preamplifier input signal and preamplifier output signal, and compiling the collected data into a phase data set, an input data set and an output data set; Calculate signal gain, phase compensation, and phase difference based on data encoded into the phase data set, the input data set, and the output data set; Performing phase shifting according to the phase difference to generate phase-shifted signal information; Calculate the signal-to-noise ratio and the stability of the phase-shifted signal according to the signal information after the phase shift, determine the signal state after the phase shift, and generate a phase-shifted signal detection report; The phase shift signal detection report is output to the display terminal to achieve high-precision phase shifting of the signal.

2. The low-noise active automatic phase shifting method according to claim 1, characterized in that: The step of compiling the collected data into the phase data set includes compiling the collected signal phase into the phase data set, compiling the collected preamplifier input signal into the input data set, and compiling the collected preamplifier output signal into the output data set; The phase data set is represented as: The input data set is represented as: The output dataset is represented as:

3. The low-noise active automatic phase shifting method according to claim 1 or 2, characterized in that: The specific calculation formula for calculating the signal gain is: Among them, X hzy Represents the signal gain, S cxh Represents the output signal, S rxh Indicates the input signal.

4. The low-noise active automatic phase shifting method according to claim 3, characterized in that: The specific calculation formula for calculating the phase compensation amount is expressed as: Among them, X wbc Indicates the phase compensation amount, f atc represents the target signal frequency, T m Represents the signal sampling period, N s Indicates the number of signal sampling points in one cycle.

5. The low-noise active automatic phase shifting method according to claim 4, characterized in that: The specific calculation formula for calculating the phase difference is: X wcz =S rxw -C kxw Among them, X wcz Represents the phase difference, S rxw Indicates the input phase, C kxw Indicates the reference phase received by the system.

6. The low-noise active automatic phase shifting method according to claim 5, characterized in that: The specific calculation formula for calculating the signal-to-noise ratio is: Among them, X zbl represents the signal-to-noise ratio, P xnh Represents the phase-shifted signal, P zos The signal noise after phase shifting is represented. The logarithm of the ratio of the signal after phase shifting to the signal noise after phase shifting is multiplied by 10 to evaluate the signal quality after phase shifting.

7. The low-noise active automatic phase shifting method according to claim 6, characterized in that: The specific calculation formula for calculating the stability of the phase-shifted signal is as follows: Among them, Y xdx represents the stability of the phase shift signal, N represents the number of stability measurements, X wcz represents the phase difference, Indicates the average value of the phase difference.

8. A system based on the low-noise active automatic phase shifting method according to claim 1, characterized in that: A signal source acquisition module, used for acquiring signal phase, preamplifier input signal and preamplifier output signal, and compiling the acquired data into a phase data set, an input data set and an output data set; A data analysis module, for calculating a signal gain, a phase compensation amount, and a phase difference based on data encoded into the phase data set, the input data set, and the output data set; A phase shift module, used to perform phase shifting according to the phase difference and generate signal information after phase shifting; A phase detection module is used to calculate the signal-to-noise ratio and the stability of the phase-shifted signal according to the signal information after the phase shift, determine the signal state after the phase shift, and generate a phase-shifted signal detection report; The output module is used to output the phase shift signal detection report to the display terminal to achieve high-precision phase shifting of the signal.

9. An electronic device, characterized in that: include: Memory, used to store programs; A processor, used for loading the program to execute the steps of the low-noise active automatic phase shifting method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a program, characterized in that: When the program is executed by a processor, the steps of the low-noise active automatic phase shifting method according to any one of claims 1 to 7 are implemented.

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