An L-band radar signal receiving device and method
A radar signal and receiving equipment technology, applied in the field of radar signal detection and monitoring, can solve the problems of complicated receiver design, inability to meet simultaneous monitoring of multiple L-band radar signals, poor real-time performance, etc.
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Embodiment 1
[0067] Please refer to figure 1 , is a system block diagram of the L-band radar signal receiving device of the present application provided in the embodiment of the present application, and the device includes:
[0068] Antenna 1;
[0069] A multi-channel receiver 2, connected to the antenna, including several broadband receiving modules 201-20n in the multi-channel receiver;
[0070] A processor 3, connected to the multi-channel receiver 2;
[0071] A display control computer 4 is connected with the processor 3;
[0072] Wherein, the display control computer 4 is used to select at least one wideband receiving module from the several wideband receiving modules, and provide a broadband signal for each broadband receiving module in the selected at least one wideband receiving module within the L-band frequency range. The receiving module sets the channel receiving frequency point; each broadband receiving module in the selected at least one broadband receiving module is used ...
Embodiment 2
[0076] Embodiment 2, in the embodiment of this application, please refer to figure 1 and / or figure 2 , the multi-channel receiver 2 also includes: a self-checking module 21, which is used to select at least one broadband receiving module from the several broadband receiving modules in the display control computer 4, and provide Each broadband receiving module in the selected at least one broadband receiving module performs a self-test on the multi-channel receiver 2 before setting the channel receiving frequency point.
[0077] In the specific implementation process, the foregoing examples are followed. For example, when the device needs self-inspection at power-on or self-inspection for maintenance, the self-inspection module in the multi-channel receiver performs self-inspection on the multi-channel receiver.
[0078] The self-check module 21 includes: a broadband frequency hopping self-check source 211, which is used to output a self-check source signal based on a self-...
Embodiment 3
[0088] Embodiment 3, in the embodiment of this application, please refer to image 3 , the multi-channel receiver also includes: several broadband receiving modules, each broadband receiving module includes an intermediate frequency digital processing board, after the self-test signal enters the receiving channels of several broadband receiving modules, the intermediate frequency digital processing The board judges whether the corresponding broadband receiving module works normally based on the signal in the receiving channel and outputs the self-test result.
[0089] In the specific implementation process, the aforementioned examples are used. For example, when the device needs self-checking or maintenance self-checking, the FPGA control circuit in the self-checking module sends frequency-hopping instructions and self-checking instructions to the broadband frequency-hopping self-checking source of the self-checking module. The switch of source detection turns on the control. ...
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