Miniaturized broadband instantaneous frequency measurement receiver and data processing method

Abstract

The invention particularly relates to a miniaturized broadband instantaneous frequency measurement receiver and a corresponding data processing method. The miniaturized broadband instantaneous frequency measurement receiver comprises a signal input port used for receiving an original radio frequency signal; the amplifying and filtering module is used for amplifying and filtering the original radio frequency signal and then outputting a first radio frequency signal; the first power divider is used for splitting the first radio frequency signal and outputting the first radio frequency signal to the multi-channel power division phase discrimination assembly; the multi-channel power division and phase discrimination assembly comprises a plurality of power division and phase discrimination modules and is used for carrying out instantaneous measurement on the signal frequency of the first radio frequency signal and outputting multi-channel video signals; the frequency measurement coding module is used for performing frequency measurement processing on the video signal and outputting a frequency code; wherein the signal input port is connected with the amplification filtering module and the power division phase discrimination module through microstrip lines; the power division phase discrimination module is connected with the frequency measurement coding module through a glass insulator. The size, the volume and the weight of the device all meet the requirement for miniaturization.

Description

Technical Field

[0001] The invention relates to the field of radar detection technology, and in particular to a miniaturized broadband instantaneous frequency measurement receiver and a data processing method. Background Art

[0002] In the relevant technologies, in the context of modern electronic warfare, the battlefield electromagnetic environment is complex and changeable, and it is necessary to quickly identify the enemy signal frequency in order to take effective countermeasures. Traditional frequency measurement receivers often have problems such as large size, slow measurement speed, and limited bandwidth when facing the increasingly complex electromagnetic environment and the ever-expanding signal bandwidth requirements.

[0003] In addition, the existing instantaneous frequency measurement receivers have the following problems: The core components of the instantaneous frequency measurement technology include correlators. Traditional correlators contain a power divider and three 3dB 90° bridges, and are printed with metal traces on high-frequency boards. For multi-channel correlators, a large installation space is often required inside the module, which restricts the demand for miniaturization. At the same time, the delay lines of each channel are generally implemented using phase-stable RF cables, which requires sufficient space for winding cables inside the module. At the same time, the video signal output by the detector and the frequency measurement encoder board often need to be connected using a video cable, which increases the time for electrical installation and the failure rate of the equipment.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] The present invention provides a miniaturized broadband instantaneous frequency measurement receiver and a data processing method applied to the receiver, which can quasi-realize an integrated structure and reduce the size of the receiver, and can improve data processing efficiency, thereby effectively overcoming the defects existing in the prior art to a certain extent.

[0006] Other features and advantages of the present invention will become apparent from the following detailed description, or may be learned in part by practice of the present invention.

[0007] According to a first aspect of the present invention, there is provided a miniaturized broadband instantaneous frequency measurement receiver.

[0008] include:

[0009] A signal input port for receiving original radio frequency signals;

[0010] an amplifying and filtering module, configured to amplify and filter the original radio frequency signal and then output a first radio frequency signal;

[0011] A first power divider, used for dividing the first radio frequency signal and outputting it to a multi-channel power division and phase discrimination component;

[0012] A multi-channel power division and phase discrimination component, comprising a plurality of power division and phase discrimination modules, for performing instantaneous measurement of the signal frequency of the first radio frequency signal and outputting a multi-channel video signal;

[0013] The frequency measurement and encoding module is used to perform frequency measurement processing on the video signal and output a frequency code;

[0014] The signal input port, the amplification and filtering module connection, and the power division and phase detection module are connected through a microstrip line; the power division and phase detection module and the frequency measurement and encoding module are connected through a glass insulator.

[0015] In some exemplary embodiments, the amplifying and filtering modules and the power dividing and phase detecting modules are chip-type structures and are integrated on a high-frequency board; the amplifying and filtering modules are arranged on the high-frequency board in an L-shaped structure.

[0016] In some exemplary embodiments, the amplification and filtering module includes a multi-stage amplifier and a filter connected to each other.

[0017] In some exemplary embodiments, the frequency measurement encoding module includes: a frequency measurement encoding board and an amplifying component control board that are stacked; wherein the frequency measurement encoding board and the amplifying component control board are connected via a rectangular connector.

[0018] In some exemplary embodiments, the high-frequency board and the amplifying component control board are stacked so that the amplifying and filtering module, the power division and phase detection module and the amplifying component control board are stacked up and down.

[0019] In some exemplary embodiments, the power division phase detection module includes: a first power division phase detection module, a second power division phase detection module;

[0020] The first power division and phase detection module comprises: a second power divider, a correlator, and a detector connected in sequence; wherein the first signal output end of the second power divider is directly connected to the first signal input end of the correlator, and the second signal output end of the second power divider is connected to the second signal input end of the correlator through a delay line; the delay line is realized by a metal trace on a high-frequency plate;

[0021] The first power division and phase detection module includes: a second power divider, a correlator, and a detector connected in sequence; wherein the first signal output end of the second power divider is directly connected to the first signal input end of the correlator, and the second signal output end of the second power divider is connected to the second signal input end of the correlator through a delay line; the delay line is implemented using a phase-stable RF cable.

[0022] In some exemplary embodiments, the receiver includes a housing having a convex groove for placing a phase-stable radio frequency cable;

[0023] The high-frequency board, the amplifying component control board, and the frequency measuring encoding board are sequentially stacked in the shell.

[0024] In some exemplary embodiments, the multi-channel power division and phase discrimination component includes four power division and phase discrimination modules.

[0025] According to a second aspect of the present invention, there is provided a data processing method, which can be applied to the miniaturized broadband instantaneous frequency measurement receiver described in the first aspect, the method comprising:

[0026] Amplifying and filtering the received original radio frequency signal using the amplification and filtering module, and then outputting the first radio frequency signal;

[0027] The first radio frequency signal is split and processed by a first power divider, and output to a multi-channel power division and phase discrimination component; wherein the multi-channel power division and phase discrimination component includes a plurality of power division and phase discrimination modules;

[0028] Using each power division phase detection module to perform instantaneous measurement of the signal frequency of the first radio frequency signal, and output multiple video signals to the frequency measurement encoding module;

[0029] The frequency measurement and encoding module performs frequency measurement processing on the input video signal and outputs a frequency code.

[0030] According to a third aspect of the present invention, there is provided a computer program product on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned data processing method is implemented.

[0031] The miniaturized broadband instantaneous frequency measurement receiver provided by the embodiment of the present invention uses an amplifying and filtering module to amplify and filter the original RF signal and then outputs a first RF signal; uses a first power divider to split the first RF signal and outputs it to a multi-channel power division and phase detection component; uses a plurality of power division and phase detection modules to perform instantaneous measurement of the signal frequency of the first RF signal respectively and outputs a multi-channel video signal; uses a frequency measurement and encoding module to perform frequency measurement processing on the video signal and outputs a frequency code. By designing the components in a modular structure, it is convenient to set the above modules on the high-frequency board, thereby reducing the size, volume and weight of the receiver to meet the requirements of miniaturization. In addition, by connecting the signal input port, the amplifying and filtering module, and the power division and phase detection module through microstrip lines, the use of cables is reduced, thereby effectively reducing the failure rate of the equipment.

[0032] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification are used to explain the principles of the present invention. Obviously, the accompanying drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0034] Figure 1 A schematic diagram schematically illustrates a module structure of a miniaturized broadband instantaneous frequency measurement receiver according to an exemplary embodiment of the present invention;

[0035] Figure 2 A schematic diagram schematically illustrates a high frequency board in an exemplary embodiment of the present invention;

[0036] Figure 3 A schematic diagram schematically shows a board layer structure of a high-frequency board, a frequency measuring encoding board, and an amplifying component control board in an exemplary embodiment of the present invention;

[0037] Figure 4 A schematic diagram schematically shows a structure of a high-frequency board and a frequency measuring encoding board in an exemplary embodiment of the present invention;

[0038] Figure 5 A schematic diagram schematically shows a structure of a miniaturized broadband instantaneous frequency measurement receiver in an exemplary embodiment of the present invention;

[0039] Figure 6 The following is a schematic diagram schematically showing a data processing method in an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present invention will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0041] In addition, the accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0042] In view of the shortcomings and deficiencies of the prior art, this exemplary implementation provides a miniaturized broadband instantaneous frequency measurement receiver, abandons the traditional instantaneous frequency measurement implementation method, and realizes the miniaturization of the receiver.

[0043] The miniaturized broadband instantaneous frequency measurement receiver in this exemplary implementation will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0044] In this example implementation, reference Figure 1 As shown, the miniaturized broadband instantaneous frequency measurement receiver includes: a signal input port 11, an amplification and filtering module 12, a first power divider 13, a multi-channel power division and phase detection component, and a frequency measurement encoding module 15 arranged in a housing.

[0045] The signal input port 11 can be used to receive the original RF signal; the amplification and filtering module 12 can be used to amplify and filter the original RF signal and then output the first RF signal; the first power divider 13 is used to split the first RF signal and output it to the multi-channel power division phase detection component; the multi-channel power division phase detection component includes a plurality of power division phase detection modules 14, which are used to perform instantaneous measurement of the signal frequency of the first RF signal and output multiple video signals; the frequency measurement and encoding module 15 is used to perform frequency measurement and processing on the video signal and output a frequency code. The signal input port 11, the amplification and filtering module connection 12, and the power division phase detection module 13 are connected through a microstrip line; the power division phase detection module 13 and the frequency measurement and encoding module 14 are connected through a glass insulator 20.

[0046] Exemplary, reference Figure 2 As shown, a high-frequency board 16 can be set in the housing of the miniaturized broadband instantaneous frequency measurement receiver, and the signal input port 11, the amplification and filtering module 12, the first power divider 13, and the multi-channel power division and phase discrimination components are integrated on the high-frequency board 16; each module can adopt a chip-type structural device. The amplification and filtering modules are arranged in an L-shaped structure on the high-frequency board. The first power divider and each channel power division and phase discrimination module can be connected by a 50-ohm microstrip line.

[0047] Exemplary, reference Figure 2 As shown, the multi-channel power division phase detection component may include a power division phase detection module 14 of four channels. The power division phase detection module 14 may include two types of first power division phase detection module and second power division phase detection module. Each type of power division phase detection module may include a second power divider 17, a correlator 19, and a detector 18 connected in sequence.

[0048] For example, refer to Figure 2As shown, the power division and phase detection modules corresponding to channel 1 and channel 2 are first power division and phase detection modules of the first type; wherein the input end of the second power divider 17 is connected to the signal output end of the first power divider; the output end of the second power divider 17 is connected to the correlator 19, and each output end of the correlator 19 is connected to the detector 18. Specifically, the first signal output end of the second power divider 17 is directly connected to the first signal input end of the correlator 19, and the second signal output end of the second power divider is connected to the second signal input end of the correlator 19 through a delay line 21. The delay line 21 is realized by a metal trace on a high-frequency plate.

[0049] Among them, the amplifier, filter, power divider, correlator, and detector are all chip-type devices, and the chips are connected by 50-ohm microstrip lines. The chip-style detector can be directly attached to the metal traces of the high-frequency board through solder paste.

[0050] Specifically, the delay line is implemented using metal traces printed on a high-frequency board with a higher dielectric constant than the RF cable. This approach can reduce the space for cables to be wound around the outside of the receiver.

[0051] The power division and phase detection modules corresponding to channels 3 and 4 are second power division and phase detection modules of the second type; wherein the signal input end of the second power divider 17 is connected to the signal output end of the first power divider; the signal output end of the second power divider 17 is connected to the signal input end of the correlator 19, and each output end of the correlator 19 is respectively connected to the detector 18. Specifically, the first signal output end of the second power divider is directly connected to the first signal input end of the correlator, and the second signal output end of the second power divider is connected to the second signal input end of the correlator through a delay line; the delay line is implemented by a phase-stable radio frequency cable.

[0052] The power division and phase detection modules corresponding to channels 3 and 4 require a long delay time. If metal traces are used, they need to go through several rounds of bending. If the distance between metal traces is too close, a coupling effect will occur, which will cause the waveform after detection to be distorted. Therefore, the delay line of the power division and phase detection modules corresponding to channels 3 and 4 is implemented using a phase-stable RF cable of appropriate length. The delay cable is connected to the power division and phase detection module 14 using an SSMP type connector 21. The delay cable is wound and placed in the convex groove 26 of the receiver housing.

[0053] Exemplarily, the frequency measurement encoding module includes: a frequency measurement encoding board 22 and an amplifying component control board 23 are stacked; wherein the frequency measurement encoding board 22 and the amplifying component control board 23 are connected via a rectangular connector 24. Figure 3 As shown, the high-frequency board 16, the amplifying component control board 23, and the frequency measuring encoding board 22 are stacked in sequence in the housing.

[0054] refer to Figure 4As shown, the high-frequency board 16 and the amplifying component control board 23 are stacked and inverted on the amplifying component control board 23, so that the amplifying filter module, the multi-channel power division phase detection component and the amplifying component control board 23 on the high-frequency board are stacked up and down, so that the high-frequency board and the amplifying component control board 23 can fit tightly and reduce space occupancy.

[0055] refer to Figure 5 As shown, a rectangular connector 24 is provided on the frequency measuring code board 22, and is provided correspondingly to the rectangular connector on the amplifying component control board 23. The frequency measuring code board 22 is placed upside down on the amplifying component control board 23, and the frequency measuring code board 22 can be connected to the rectangular connector on the amplifying component control board by directly plugging through the rectangular connector on the frequency measuring code board 22, and the frequency measuring code board 22 is fixedly supported by four pads 25 of suitable height in the receiver housing 27.

[0056] Specifically, the broadband instantaneous frequency measurement receiver can be provided with only one external signal input port 11, through which the original RF signal is input and transmitted to the amplification and filtering module. After the RF signal passes through the amplification and filtering module, it is input to each power division phase detection module 14 in the multi-channel power division phase detection component through the first power divider 13. In the power division phase detection module of a single channel, two signals are output through the power division of the second power divider 17, one of which directly enters the correlator 19, and the other enters the correlator 19 after passing through the delay line 21. After the correlator performs sum and difference operations on the signals, the signal output by the correlator can be directly input into the detector 18. The video signal processed by the detector 18 can be transmitted to the amplification component control board 23 on the back of the multi-channel power division phase detection module through the glass insulator 20. The video signals of each channel are converged into the rectangular connector 24 through the amplification component control board 23. The video signal is transmitted to the frequency measurement encoding board 22 through the rectangular connector 24 on the amplification component control board 23 for signal processing, and finally the frequency code is obtained. Among them, the amplifier component control board can power the multi-stage amplifier, and at the same time, the video signal after the detector is directly transmitted to the amplifier component control board on the back of the multi-channel power division and phase detection module through the glass insulator. The amplifier component control board converges the video signals of each channel to the rectangular connector on it. The front-end microwave part of the receiver of this solution adopts a chip design, and the multi-channel power division and phase detection module and the amplification and filtering module are integrated on a flat high-frequency board, which improves the integration of the equipment. By transmitting the video signal output by the detector directly to the amplifier component control board on the back of the multi-channel power division and phase detection module through a glass insulator, the process of transmitting the signal by the video cable is eliminated, making the overall circuit volume smaller. In addition, by adopting an integrated structural design in which the frequency measurement encoding board and the amplifier component control board are stacked up and down, the size, volume and weight of the receiver are effectively reduced to meet the needs of miniaturization.

[0057] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to an embodiment of the present invention, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0058] In this exemplary implementation, a data processing method is provided, which can be applied to the above-mentioned miniaturized broadband instantaneous frequency measurement receiver. Figure 6 , the data processing methods include:

[0059] Step S11, using the amplification and filtering module to amplify and filter the received original radio frequency signal, and then output a first radio frequency signal;

[0060] Step S12, splitting the first radio frequency signal through the first power divider and outputting it to the multi-channel power division phase detection component; wherein the multi-channel power division phase detection component includes a plurality of power division phase detection modules;

[0061] Step S13, using each power division phase detection module to perform instantaneous measurement of the signal frequency of the first radio frequency signal, and outputting a multi-channel video signal to a frequency measurement encoding module;

[0062] Step S14, performing frequency measurement processing on the input video signal through the frequency measurement encoding module, and outputting a frequency code.

[0063] The specific implementation process of each step of the method is described in the embodiment corresponding to the above-mentioned miniaturized broadband instantaneous frequency measurement receiver, which will not be repeated here.

[0064] It should be noted that the above figures are only schematic illustrations of the processes included in the method according to an exemplary embodiment of the present invention, and are not intended to be limiting. It is easy to understand that the processes shown in the above figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0065] The flow charts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the apparatus, method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of boxes in the block diagram or flow chart, can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0066] The units involved in the embodiments of the present invention may be implemented by software or hardware, and the units described may also be arranged in a processor. The names of these units do not, in some cases, limit the units themselves.

[0067] It should be noted that, as another aspect, the present application also provides a storage medium, which can be included in an electronic device; or it can exist independently without being installed in the electronic device. The above storage medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements the method described in the following embodiments. For example, the electronic device can implement the following Figure 6 The individual steps of the method are shown.

[0068] In one embodiment, the present application provides a computer program product, including a computer program, which implements the steps in the above-mentioned method embodiments when executed by a processor.

[0069] In addition, the above-mentioned figures are only schematic illustrations of the processes included in the method according to an exemplary embodiment of the present invention, and are not intended to be limiting. It is easy to understand that the processes shown in the above-mentioned figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0070] Other embodiments of the invention will readily occur to those skilled in the art after considering the specification and practicing the invention herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

[0071] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A miniaturized broadband instantaneous frequency measurement receiver, characterized in that: include: A signal input port for receiving original radio frequency signals; an amplifying and filtering module, configured to amplify and filter the original radio frequency signal and then output a first radio frequency signal; A first power divider, used for dividing the first radio frequency signal and outputting it to a multi-channel power division and phase discrimination component; A multi-channel power division and phase discrimination component, comprising a plurality of power division and phase discrimination modules, for performing instantaneous measurement of the signal frequency of the first radio frequency signal and outputting a multi-channel video signal; The frequency measurement and encoding module is used to perform frequency measurement processing on the video signal and output a frequency code; The signal input port, the amplification and filtering module connection, and the power division and phase detection module are connected through a microstrip line; the power division and phase detection module and the frequency measurement and encoding module are connected through a glass insulator.

2. The miniaturized broadband instantaneous frequency measurement receiver according to claim 1, characterized in that: The amplifying and filtering modules and the power dividing and phase detecting modules adopt a chip-type structure and are integrated on a high-frequency board; the amplifying and filtering modules are arranged on the high-frequency board in an L-shaped structure.

3. The miniaturized broadband instantaneous frequency measurement receiver according to claim 1 or 2, characterized in that: The amplification and filtering module includes a multi-stage amplifier and a filter which are connected to each other.

4. The miniaturized broadband instantaneous frequency measurement receiver according to claim 2, characterized in that: The frequency measurement encoding module comprises: a frequency measurement encoding board and an amplifying component control board which are stacked; wherein the frequency measurement encoding board and the amplifying component control board are connected via a rectangular connector.

5. The miniaturized broadband instantaneous frequency measurement receiver according to claim 4, characterized in that: The high frequency board and the amplifying component control board are stacked so that the amplifying and filtering module, the power division and phase detection module and the amplifying component control board are stacked up and down.

6. The miniaturized broadband instantaneous frequency measurement receiver according to claim 1, characterized in that: The power division phase detection module comprises: a first power division phase detection module and a second power division phase detection module; The first power division and phase detection module comprises: a second power divider, a correlator, and a detector connected in sequence; wherein the first signal output end of the second power divider is directly connected to the first signal input end of the correlator, and the second signal output end of the second power divider is connected to the second signal input end of the correlator through a delay line; the delay line is realized by a metal trace on a high-frequency plate; The first power division and phase detection module includes: a second power divider, a correlator, and a detector connected in sequence; wherein the first signal output end of the second power divider is directly connected to the first signal input end of the correlator, and the second signal output end of the second power divider is connected to the second signal input end of the correlator through a delay line; the delay line is implemented using a phase-stable RF cable.

7. The miniaturized broadband instantaneous frequency measurement receiver according to claim 6, characterized in that: The receiver comprises a housing, and the housing is provided with a convex groove for placing a phase-stable radio frequency cable; The high-frequency board, the amplifying component control board, and the frequency measuring encoding board are sequentially stacked in the shell.

8. The miniaturized broadband instantaneous frequency measurement receiver according to claim 1, characterized in that: The multi-channel power division and phase discrimination component includes four power division and phase discrimination modules.

9. A data processing method, applied to the miniaturized broadband instantaneous frequency measurement receiver according to any one of claims 1 to 8, characterized in that: The method comprises: Amplifying and filtering the received original radio frequency signal using the amplification and filtering module, and then outputting the first radio frequency signal; The first radio frequency signal is split and processed by a first power divider, and output to a multi-channel power division and phase discrimination component; wherein the multi-channel power division and phase discrimination component includes a plurality of power division and phase discrimination modules; Using each power division phase detection module to perform instantaneous measurement of the signal frequency of the first radio frequency signal, and output multiple video signals to the frequency measurement encoding module; The frequency measurement and encoding module performs frequency measurement processing on the input video signal and outputs a frequency code.

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