Automatically reconfigured extensible multi-channel array receiver

Abstract

An automatic-reconstruction extensible multi-channel array receiver comprises a receiver body and is characterized in that the receiver body is of a layered structure and is sequentially provided with a basic module and N extension modules from bottom to top, and the N extension modules comprise at least one channel extension module and at least one frequency extension module; a first power supply conditioning circuit is arranged in the basic module, second power supply conditioning circuits are arranged in the expansion module, and the first power supply conditioning circuit is connected with each second power supply conditioning circuit through a power supply bus; a first digital control circuit is further arranged in the basic module, second digital control circuits are further arranged in the expansion module, and the first digital control circuit is connected with the second digital control circuits through an offline instruction data bus. The method has the advantages that the number of channels and the frequency coverage range can be expanded by increasing new modules, and repeated input of hardware cost is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, and in particular to an automatically reconfigurable scalable multichannel array receiver. Background Technology

[0002] With the rapid development of wireless communication and radar technologies, the spectrum range and technical solutions for human use of electromagnetic waves are expanding rapidly. Radio monitoring and direction finding equipment needs to keep pace with these changes to meet new monitoring and management requirements. Frequent replacement of basic equipment will result in significant consumption of human, material, and financial resources. The construction and maintenance cycle of monitoring and direction finding stations will also be prolonged due to slow equipment replacement and long repair times, leading to operational interruptions at these stations.

[0003] The drawbacks of existing technologies are that the frequency and channel of the received signal of existing receivers are relatively fixed, making it difficult to freely expand the frequency and channel, and thus failing to meet the needs of multiple application scenarios. Utility Model Content

[0004] This invention provides an automatically reconfigurable scalable multichannel array receiver that can expand the number of channels and frequency coverage by adding new modules, avoiding repeated investment in hardware costs.

[0005] To achieve the above objectives, this utility model provides an automatically reconfigurable scalable multichannel array receiver, including a receiver body. The key feature is that the receiver body has a layered structure, with a basic module and N expansion modules arranged sequentially from bottom to top. The N expansion modules include at least one channel expansion module and at least one frequency expansion module.

[0006] The basic module is provided with a first power conditioning circuit, and the expansion module is provided with a second power conditioning circuit. The first power conditioning circuit is connected to each of the second power conditioning circuits via a power bus.

[0007] The basic module is further provided with a first digital control circuit, and the expansion module is further provided with a second digital control circuit. The first digital control circuit is connected to each of the second digital control circuits via an offline instruction data bus.

[0008] The basic module is also provided with at least one bandwidth local oscillator signal source, and the expansion module is also provided with a local oscillator coupling and load detection circuit. The bandwidth local oscillator signal source is connected to the first local oscillator coupling and load detection circuit, and each local oscillator coupling and load detection circuit is connected in series.

[0009] The basic module is used for power conversion, receiving external control commands, generating local oscillator signals, and controlling the frequency scanning of other channel modules, among other functions.

[0010] Each expansion module uploads its configuration information to the base module via an upload management data cable; the base module then uses this configuration information to determine how to manage and control each expansion module.

[0011] The above design enables the radio monitoring and direction finding equipment to expand the number of channels and frequency coverage by adding new modules when needed, avoiding repeated investment in hardware costs.

[0012] Meanwhile, it has the functions of automatic detection, identification and management unit modules, avoiding the need for redevelopment and reconfiguration of control software and local oscillator drive signals after changes in hardware configuration, realizing the functions of rapid expansion, changing the number of channels and operating frequency range, and also facilitating rapid repair and replacement of equipment failures in the future.

[0013] Its adaptive configuration change capability allows for the rapid and flexible construction of new receivers using existing idle hardware modules, thereby improving hardware utilization.

[0014] Preferably, the basic module and the expansion module are rectangular structures, with mounting bases at each of the four corners. The mounting bases have mounting holes. The basic module and all expansion modules are stacked together in sequence, and the mounting holes at the four corners are respectively penetrated and fixed by the same mounting post, forming the layered structure.

[0015] The modules are fixed together by mounting posts, which facilitates the assembly and disassembly of the modules.

[0016] Preferably, the basic module is provided with a basic module box, the upper part of the basic module box has an upper mounting cavity, a first PCB board is installed in the upper mounting cavity, the first PCB board is installed inside the upper cover plate; the lower part of the basic module box has a lower mounting cavity, a second PCB board is installed in the lower mounting cavity, and the second PCB board is fastened to the lower cover plate.

[0017] The basic module housing, upper cover, and lower cover protect the internal circuitry of the basic module and prevent external factors from affecting its functionality.

[0018] Preferably, the first power conditioning circuit and the first digital control circuit are provided on the second PCB board;

[0019] The second PCB board is equipped with a power and control signal feed socket; the lower cover plate corresponding to the power and control signal feed socket is provided with a socket slot, the power and control signal feed socket is located in the socket slot, the side wall of the basic module box is provided with a socket, the power and control signal feed socket is opposite to the socket, and the two fit tightly together;

[0020] The basic module is connected to an external control and power supply module via the power and control signal feed socket;

[0021] The first PCB board is provided with at least one local oscillator signal source of the specified bandwidth. The first PCB board is provided with a local oscillator signal feed terminal group, a power supply and a control signal feed socket. The upper cover plate is provided with a corresponding number of signal feed holes. The local oscillator signal feed terminal group, the power supply and the control signal feed socket extend out of the corresponding signal feed holes and are connected to the subsequent expansion module.

[0022] By setting signal input / output terminals, electrical connections are achieved between the basic module and external control and power supply modules, as well as subsequent expansion modules.

[0023] The basic module sends control commands to the expansion modules via a downlink command bus. Each expansion module has an upload management data line for reporting expansion module status information, i.e., configuration information, level by level, to achieve functions such as automatic configuration confirmation and health management.

[0024] The configuration information of each expansion module is stored in its own second digital control circuit.

[0025] The configuration information includes, but is not limited to, the type of expansion module, the operating frequency range, and the load connection status.

[0026] Preferably, the channel expansion module is provided with a channel module housing, and a first mounting groove is provided on the upper surface of the channel module housing. A channel PCB board is installed in the first mounting groove, and the channel PCB board is installed inside the channel module cover plate.

[0027] Preferably, the channel PCB board is provided with a second power conditioning circuit, a second digital control circuit, a local oscillator coupling and load detection circuit, a basic frequency conversion circuit and an intermediate frequency interface circuit.

[0028] The lower surface of the channel PCB is provided with a local oscillator signal feed terminal group and power and control signal feed pins. The bottom of the channel module box is provided with multiple first channel signal vias. The local oscillator signal feed terminal group and power and control signal feed pins extend out of the corresponding first channel signal vias and are connected to the front-end module.

[0029] The upper surface of the channel PCB is provided with intermediate frequency signal feed terminal, local oscillator signal feed terminal group, radio frequency input terminal, intermediate frequency output terminal, power and control signal feed socket;

[0030] The channel module cover plate is provided with a second channel signal via. The intermediate frequency signal feed terminal, the local oscillator signal feed terminal group, and the power and control signal feed socket extend out of the corresponding second channel signal via and are connected to the subsequent module.

[0031] The channel module housing has a corresponding third channel signal via on its side wall. The RF input terminal extends out of the third channel signal via and connects to the receiving antenna. The IF output terminal extends out of the third channel signal via and connects to an external A / D acquisition device.

[0032] The channel expansion module is equipped with an intermediate frequency signal feed terminal for connecting the spread spectrum intermediate frequency signal of the frequency expansion module.

[0033] Preferably, the frequency extension module is provided with a frequency module housing, and a second mounting groove is provided on the upper surface of the frequency module housing. A frequency PCB board is installed in the second mounting groove and the frequency PCB board is installed inside the frequency module cover plate.

[0034] Preferably, the frequency PCB board is provided with a second power conditioning circuit, a second digital control circuit, a local oscillator coupling and load detection circuit, a spread spectrum frequency conversion circuit and an intermediate frequency interface circuit;

[0035] The lower surface of the frequency PCB board is provided with intermediate frequency signal feedout terminals, local oscillator signal feedout terminals, and power and control signal feedout pins.

[0036] The bottom of the frequency module housing has a first frequency signal via. The intermediate frequency signal feedout terminal, the local oscillator signal feedin terminal group, and the power and control signal feedin pins extend out of the corresponding first frequency signal via and are connected to the front-end module.

[0037] The upper surface of the frequency PCB board is provided with a local oscillator signal feedout terminal group, an intermediate frequency signal feedin terminal, a power and control signal feedout socket, and an RF input terminal;

[0038] The frequency module cover plate is provided with a second frequency signal via. The local oscillator signal feedout terminal group, the intermediate frequency signal feedin terminal, and the power and control signal feedout socket extend out of the corresponding second frequency signal via and are connected to the subsequent module.

[0039] The frequency module housing has a third frequency signal via, and the RF input terminal extends out of the third frequency signal via and connects to the spread spectrum receiving antenna.

[0040] The frequency extension module is equipped with intermediate frequency (IF) signal input / output terminals. The output terminal is used to output spread spectrum IF signals to the channel module, while the input terminal is used for inputting spread spectrum IF signals from other frequency extension modules. The IF interface adopts a switch-selective connection method, which selects the corresponding frequency band for IF output in real time during spectrum scanning.

[0041] Preferably, the local oscillator coupling and load detection circuit includes a local oscillator coupling circuit and a load detection circuit;

[0042] The local oscillator coupling circuit includes a DC blocking capacitor C1. The front end of the DC blocking capacitor C1 receives the local oscillator signal from the base module or the local oscillator signal from the front-end coupling output of the front-end expansion module. The front end of the DC blocking capacitor C1 is also connected to ground via a series resistor R1. The rear end of the DC blocking capacitor C1 is connected to the input terminal of the RF coupler.

[0043] The first output terminal of the RF coupler is connected to the input terminal of the driver amplifier, and the output terminal of the driver amplifier outputs the internal frequency conversion local oscillator signal to the basic frequency conversion circuit or the spread spectrum frequency conversion circuit; the second output terminal of the RF coupler is connected to the front end of the DC blocking capacitor C2, and the rear end of the DC blocking capacitor C2 outputs the coupled local oscillator signal to the subsequent expansion module.

[0044] When the current module is a channel expansion module, the output terminal of the drive amplifier outputs the internal frequency conversion local oscillator signal to the basic frequency conversion circuit; when the current module is a frequency expansion module, the output terminal of the drive amplifier outputs the internal frequency conversion local oscillator signal to the spread spectrum frequency conversion circuit.

[0045] The load detection circuit is equipped with a bandwidth detection resistor R2. The front end of the bandwidth detection resistor R2 is connected to the rear end of the DC blocking capacitor C2, and the rear end of the bandwidth detection resistor R2 is connected to the second digital control circuit. The second digital control circuit uploads configuration information to the front-end module via the upload management data line.

[0046] The local oscillator coupling and load detection circuit is used to divide the local oscillator signal or the local oscillator output from the pre-amplifier into two signals: the current internal frequency conversion local oscillator and the current coupled output local oscillator. The coupled output is equipped with a load detection circuit to determine whether it is connected to a subsequent expansion module by detecting the load.

[0047] When an expansion module is detected to be connected, the load detection signal level changes, and the second digital control circuit recognizes that an expansion module has been connected to the current module.

[0048] The module identification function is achieved by the local oscillator signal input / output terminals of the local oscillator coupling circuit and the load detection circuit, together with the data aggregation and uploading functions of the second digital control circuit.

[0049] The beneficial effects of this utility model are as follows: The number of channels and frequency coverage can be expanded by adding new modules, avoiding repeated investment in hardware costs; it has the function of automatically detecting, identifying, and managing unit modules, avoiding the need for redevelopment and reconfiguration of control software and local oscillator drive signals after changes in hardware configuration, enabling rapid expansion and changes in the number of channels and operating frequency range, and also facilitating rapid repair and replacement of equipment in the future; through its adaptive configuration change function, existing idle hardware modules can be used to quickly and flexibly build new receivers, improving hardware utilization. Attached Figure Description

[0050] Figure 1 This is a block diagram illustrating the logical structure of the present invention in an embodiment.

[0051] Figure 2 This is a schematic diagram of the overall structure of the present invention in the embodiment;

[0052] Figure 3 This is an exploded view of the basic module structure in the embodiment;

[0053] Figure 4 This is an exploded view of the channel expansion module structure in the embodiment;

[0054] Figure 5 This is an exploded view of the frequency extension module structure in the embodiment;

[0055] Figure 6 This is the local oscillator coupling and load detection circuit in the embodiment;

[0056] Figure 7 The flowchart shown is for the system's automatic construction process in this embodiment. Detailed Implementation

[0057] The present invention will be further described in detail below with reference to the accompanying drawings and specific examples. The following embodiments or drawings are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0058] like Figure 1 As shown: An automatically reconfigurable scalable multichannel array receiver includes a receiver body, characterized in that: the receiver body has a layered structure, with a basic module and N expansion modules arranged sequentially from bottom to top, the N expansion modules including at least one channel expansion module and at least one frequency expansion module;

[0059] The basic module is provided with a first power conditioning circuit, and the expansion module is provided with a second power conditioning circuit. The first power conditioning circuit is connected to each of the second power conditioning circuits via a power bus.

[0060] The basic module is further provided with a first digital control circuit, and the expansion module is further provided with a second digital control circuit. The first digital control circuit is connected to each of the second digital control circuits via an offline instruction data bus.

[0061] Each of the extended modules is equipped with an upload management data line for uploading configuration information to the basic module level by level;

[0062] The basic module is also provided with at least one bandwidth local oscillator signal source, and the expansion module is also provided with a local oscillator coupling and load detection circuit. The bandwidth local oscillator signal source is connected to the first local oscillator coupling and load detection circuit, and each local oscillator coupling and load detection circuit is connected in series.

[0063] This embodiment is equipped with two bandwidth local oscillator signal sources.

[0064] like Figure 2 As shown: The basic module and the expansion module are rectangular structures, with mounting bases at each of the four corners. The mounting bases have mounting holes. The basic module and all expansion modules are stacked together in sequence, and the mounting holes at the four corners are respectively penetrated and fixed by the same mounting post, forming the layered structure.

[0065] like Figure 3 As shown: The basic module is provided with a basic module box 1b. The upper part of the basic module box 1b has an upper mounting cavity, in which a first PCB board 2a is installed. The first PCB board 2a is installed inside the upper cover plate 1a. The lower part of the basic module box 1b has a lower mounting cavity, in which a second PCB board 2b is installed. The second PCB board 2b is fastened to the lower cover plate 1c.

[0066] The first power conditioning circuit and the first digital control circuit are provided on the second PCB board 2b;

[0067] The second PCB board 2b is equipped with a power and control signal feed socket 4; the lower cover plate 1c corresponding to the power and control signal feed socket 4 is provided with a socket groove, the power and control signal feed socket 4 is located in the socket groove, the side wall of the basic module box 1b is provided with an insertion port, the power and control signal feed socket 4 is opposite to the insertion port, and the two fit tightly together.

[0068] The basic module is connected to an external control and power supply module via the power and control signal feed socket 4;

[0069] The first PCB board 2a is provided with at least one local oscillator signal source of the bandwidth, and the first PCB board 2a is provided with a local oscillator signal feed terminal group 1 and a power and control signal feed socket 2. The upper cover plate 1a is provided with a corresponding number of signal feed holes. The local oscillator signal feed terminal group 1 and the power and control signal feed socket 2 extend out of the corresponding signal feed holes and are connected to the subsequent expansion module.

[0070] like Figure 4 As shown: The channel expansion module is provided with a channel module box 1f. The upper surface of the channel module box 1f is provided with a first mounting groove. A channel PCB board 2d is installed in the first mounting groove. The channel PCB board 2d is installed inside the channel module cover plate 1g.

[0071] The channel PCB board 2d is provided with the second power conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the basic frequency conversion circuit and the intermediate frequency interface circuit.

[0072] The lower surface of the channel PCB board 2d is provided with a channel local oscillator signal feed terminal group 16 and a power and channel control signal feed pin 22. The bottom of the channel module box 1f is provided with multiple first channel signal vias. The channel local oscillator signal feed terminal group 16 and the power and channel control signal feed pin 22 extend out of the corresponding first channel signal vias and are connected to the front-end module.

[0073] The upper surface of the channel PCB board 2d is provided with a channel intermediate frequency signal feed terminal 14, a channel local oscillator signal feed terminal group 15, a channel radio frequency input terminal 19, an intermediate frequency output terminal 20, and a power supply and channel control signal feed socket 21.

[0074] The channel module cover plate 1g is provided with a corresponding second channel signal via. The channel intermediate frequency signal feed terminal 14, the channel local oscillator signal feed terminal group 15, and the power supply and channel control signal feed socket 21 extend out of the corresponding second channel signal via and are connected to the subsequent module.

[0075] The channel module housing 1f has a corresponding third channel signal via on its side wall. The channel RF input terminal 19 extends out of the third channel signal via and is connected to the receiving antenna. The intermediate frequency output terminal 20 extends out of the third channel signal via and is connected to an external A / D acquisition device.

[0076] like Figure 5 As shown: The frequency expansion module is provided with a frequency module housing 1d. A second mounting groove is provided on the upper surface of the frequency module housing 1d. A frequency PCB board 2c is installed in the second mounting groove. The frequency PCB board 2c is installed inside the frequency module cover plate 1e.

[0077] The frequency PCB board 2c is provided with a second power conditioning circuit, a second digital control circuit, a local oscillator coupling and load detection circuit, a spread spectrum frequency conversion circuit and an intermediate frequency interface circuit.

[0078] The lower surface of the frequency PCB board 2c is provided with an intermediate frequency signal feedout terminal 6, a frequency local oscillator signal feedin terminal group 8, and a power supply and frequency control signal feedin pin 13.

[0079] The bottom of the frequency module housing 1d is provided with a first frequency signal via. The intermediate frequency signal feedout terminal 6, the frequency local oscillator signal feedin terminal group 8, and the power supply and frequency control signal feedin pin 13 extend out of the corresponding first frequency signal via and are connected to the front-end module.

[0080] The upper surface of the frequency PCB board 2c is provided with a frequency local oscillator signal feedout terminal group 7, a frequency intermediate frequency signal feedin terminal 5, a power and frequency control signal feedout socket 12, and a frequency radio frequency input terminal 11.

[0081] The frequency module cover plate 1e is provided with a corresponding second frequency signal through hole. The frequency local oscillator signal feedout terminal group 7, the frequency intermediate frequency signal feedin terminal 5, and the power supply and frequency control signal feedout socket 12 extend out of the corresponding second frequency signal through hole and are connected to the subsequent module.

[0082] The frequency module housing 1d has a third frequency signal via, and the frequency RF input terminal 11 extends out of the third frequency signal via and is connected to the spread spectrum receiving antenna.

[0083] like Figure 6 As shown: The local oscillator coupling and load detection circuit includes a local oscillator coupling circuit and a load detection circuit;

[0084] The local oscillator coupling circuit includes a DC blocking capacitor C1. The front end of the DC blocking capacitor C1 receives the local oscillator signal from the base module or the local oscillator signal from the front-end coupling output of the front-end expansion module. The front end of the DC blocking capacitor C1 is also connected to ground via a series resistor R1. The rear end of the DC blocking capacitor C1 is connected to the input terminal of the RF coupler.

[0085] The first output terminal of the RF coupler is connected to the input terminal of the driver amplifier, and the output terminal of the driver amplifier outputs the internal frequency conversion local oscillator signal to the basic frequency conversion circuit or the spread spectrum frequency conversion circuit; the second output terminal of the RF coupler is connected to the front end of the DC blocking capacitor C2, and the rear end of the DC blocking capacitor C2 outputs the coupled local oscillator signal to the subsequent expansion module.

[0086] The load detection circuit is equipped with a bandwidth detection resistor R2. The front end of the bandwidth detection resistor R2 is connected to the rear end of the DC blocking capacitor C2, and the rear end of the bandwidth detection resistor R2 is connected to the second digital control circuit. The second digital control circuit uploads configuration information to the front-end module via the upload management data line.

[0087] like Figure 7 As shown: The automatic construction process of the scalable multi-channel array receiver is as follows:

[0088] Step 1: System power-on initialization;

[0089] Step 2: The basic module sends a configuration query command to the extension module via the downlink command control bus;

[0090] Step 3: The expansion module detects load information through the local oscillator coupling and load detection circuit. When a load is detected, it waits for the subsequent expansion module to upload the configuration information, and then aggregates the configuration information and uploads it to the previous expansion module. When no load is detected, it directly uploads the configuration information to the previous expansion module.

[0091] Step 4: After receiving the configuration information from all the extended modules through step-by-step statistics, aggregation, and uploading, the basic module calls the preset control and management program based on the configuration information;

[0092] Step 5: The system completes automatic construction and awaits external instructions.

[0093] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatically reconfigurable scalable multi-channel array receiver comprising a receiver body, characterized by: The receiver main body is a layered structure, sequentially provided with a basic module and N extension modules from bottom to top, the N extension modules including at least one channel extension module and at least one frequency extension module; The basic module is provided with a first power supply conditioning circuit, the extension modules are provided with second power supply conditioning circuits, and the first power supply conditioning circuit is connected with each second power supply conditioning circuit through a power supply bus; The basic module is further provided with a first digital control circuit, the extension modules are further provided with second digital control circuits, and the first digital control circuit is connected with each second digital control circuit through a down-line instruction data bus; The basic module is further provided with at least one bandwidth local oscillator signal source, the extension modules are further provided with local oscillator coupling and load detection circuits, the bandwidth local oscillator signal source is connected with a first local oscillator coupling and load detection circuit, and each local oscillator coupling and load detection circuit is connected in series.

2. The automatically reconfigurable, scalable, multi-channel array receiver of claim 1, wherein: The basic module and the extension modules are rectangular structures, each provided with a mounting seat at four corners, the mounting seat is provided with a mounting hole, the basic module and all the extension modules are sequentially stacked together, the mounting holes at the four corners are respectively penetrated by the same mounting column and fixed, thereby forming the layered structure.

3. The self-reconfigurable, scalable, multi-channel array receiver of claim 1, wherein: The basic module is provided with a basic module box body (1b), an upper part of the basic module box body (1b) is provided with an upper mounting cavity, a first PCB (2a) is mounted in the upper mounting cavity, and the first PCB (2a) is mounted on the inner side of an upper cover plate (1a); a lower part of the basic module box body (1b) is provided with a lower mounting cavity, a second PCB (2b) is mounted in the lower mounting cavity, and the second PCB (2b) is buckled through a lower cover plate (1c).

4. The self-reconfigurable, scalable, multi-channel array receiver of claim 3, wherein: The second PCB (2b) is provided with the first power supply conditioning circuit and the first digital control circuit; The second PCB (2b) is provided with the first power supply conditioning circuit and the first digital control circuit; The second PCB (2b) is provided with a power supply and a control signal feeding socket (4); the lower cover plate (1c) corresponding to the power supply and the control signal feeding socket (4) is provided with a socket groove, the power supply and the control signal feeding socket (4) are located in the socket groove, a side wall of the basic module box body (1b) is provided with a socket, and the power supply and the control signal feeding socket (4) are opposite to the socket and tightly fit with each other; The basic module is connected with an external control and power supply module through the power supply and the control signal feeding socket (4); The first PCB (2a) is provided with at least one bandwidth local oscillator signal source, the first PCB (2a) is provided with a local oscillator signal feeding terminal group (1), a power supply and a control signal feeding socket (2), the upper cover plate (1a) is provided with a corresponding number of signal feeding holes, and the local oscillator signal feeding terminal group (1), the power supply and the control signal feeding socket (2) are respectively connected with a rear extension module after being stretched out of the corresponding signal feeding holes.

5. The automatically reconfigurable, scalable, multi-channel array receiver of claim 1, wherein: The channel expansion module is provided with a channel module box body (1f), a first installation slot is formed on the upper surface of the channel module box body (1f), and a channel PCB board (2d) is installed in the first installation slot.

6. The self-reconfigurable, scalable, multi-channel array receiver of claim 5, wherein: The channel PCB board (2d) is provided with the second power supply conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the basic frequency conversion circuit and the intermediate frequency interface circuit; The lower surface of the channel PCB board (2d) is provided with a channel local oscillator signal feeding terminal group (16) and a power supply and channel control signal feeding pin (22), a plurality of first channel signal through holes are formed on the bottom of the channel module box body (1f), and the channel local oscillator signal feeding terminal group (16) and the power supply and channel control signal feeding pin (22) are respectively connected with the front-stage module after being respectively stretched out of the corresponding first channel signal through holes; The upper surface of the channel PCB board (2d) is provided with a channel intermediate frequency signal feeding terminal (14), a channel local oscillator signal feeding terminal group (15), a channel radio frequency input terminal (19), an intermediate frequency output terminal (20) and a power supply and channel control signal feeding socket (21); Second channel signal through holes are formed on the channel module cover plate (1g) in correspondence, and the channel intermediate frequency signal feeding terminal (14), the channel local oscillator signal feeding terminal group (15) and the power supply and channel control signal feeding socket (21) are respectively connected with the rear-stage module after being respectively stretched out of the corresponding second channel signal through holes; Third channel signal through holes are formed on the side wall of the channel module box body (1f) in correspondence, the channel radio frequency input terminal (19) is connected with a receiving antenna after being stretched out of the third channel signal through hole, and the intermediate frequency output terminal (20) is connected with an external A / D acquisition device after being stretched out of the third channel signal through hole.

7. The automatically reconfigurable, scalable, multi-channel array receiver of claim 1, wherein: The frequency expansion module is provided with a frequency module box body (1d), a second installation slot is formed on the upper surface of the frequency module box body (1d), and a frequency PCB board (2c) is installed in the second installation slot.

8. The automatically reconfigurable, scalable, multi-channel array receiver of claim 7, wherein: The frequency PCB board (2c) is provided with the second power supply conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the spread spectrum frequency conversion circuit and the intermediate frequency interface circuit; The lower surface of the frequency PCB board (2c) is provided with an intermediate frequency signal feeding terminal (6), a frequency local oscillator signal feeding terminal group (8) and a power supply and frequency control signal feeding pin (13); The bottom of the frequency module box body (1d) is provided with first frequency signal through holes, and the intermediate frequency signal feeding terminal (6), the frequency local oscillator signal feeding terminal group (8) and the power supply and frequency control signal feeding pin (13) are respectively connected with the front-stage module after being respectively stretched out of the corresponding first frequency signal through holes; The upper surface of the frequency PCB board (2c) is provided with a frequency local oscillator signal feed-out terminal group (7), a frequency intermediate frequency signal feed-in terminal (5), a power supply and frequency control signal feed-out socket (12), and a frequency radio frequency input terminal (11); The frequency module cover plate (1e) is correspondingly provided with a second frequency signal via hole, and the frequency local oscillator signal feed-out terminal group (7), the frequency intermediate frequency signal feed-in terminal (5), and the power supply and frequency control signal feed-out socket (12) are respectively extended out of the corresponding second frequency signal via hole and connected with the subsequent module; The frequency module box body (1d) is provided with a third frequency signal via hole, and the frequency radio frequency input terminal (11) is extended out of the third frequency signal via hole and connected with a spread spectrum receiving antenna.

9. The automatically reconfigurable, scalable, multi-channel array receiver of claim 1, wherein: The local oscillator coupling and load detection circuit comprises a local oscillator coupling circuit and a load detection circuit; The local oscillator coupling circuit is provided with a direct current blocking capacitor C1, the front end of the direct current blocking capacitor C1 obtains a local oscillator signal from the basic module or a front-stage coupling output local oscillator from the front-stage extension module, the front end of the direct current blocking capacitor C1 is further connected with a resistor R1 to ground, and the rear end of the direct current blocking capacitor C1 is connected with an input end of a radio frequency coupler; The first output end of the radio frequency coupler is connected with an input end of a driving amplifier, the output end of the driving amplifier outputs an internal frequency conversion local oscillator signal to a basic frequency conversion circuit or a spread spectrum frequency conversion circuit, the second output end of the radio frequency coupler is connected with the front end of a direct current blocking capacitor C2, and the rear end of the direct current blocking capacitor C2 outputs a coupling output local oscillator to a subsequent extension module; The load detection circuit is provided with a bandwidth detection resistor R2, the front end of the bandwidth detection resistor R2 is connected with the rear end of the direct current blocking capacitor C2, the rear end of the bandwidth detection resistor R2 is connected with the second digital control circuit, and the second digital control circuit uploads configuration information to the front-stage module through an upload management data line.

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