Conditioning circuit of Doppler signal under strong noise background
A technology of Doppler signal and conditioning circuit, applied in the field of conditioning circuit of Doppler signal under the background of strong noise, can solve the problems of lack of guarantee of technical service, lack of systematic research, high price of instruments, etc., so as to filter out high-frequency interference. , the effect of improving accuracy and quality
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[0022] Such as figure 1 As shown, the conditioning circuit of the Doppler signal under the strong noise background includes a preamplification unit 2, a real-time fault detection unit 3, and a signal filtering unit 4, wherein the signal filtering unit 4 includes a filtering conditioning circuit and a dual-antenna working mode. Adaptive filter conditioning circuit under single-antenna working mode, the radar antenna 1 is connected to the signal input terminals of the preamplifier unit 2 and the real-time fault detection unit 3 respectively, and the signal output terminal of the preamplifier unit 2 is connected to the signal of the signal filter unit 4 The input end is connected, and the signal output end of the signal filter unit 4 and the real-time fault detection unit 3 is connected with the signal input end of the signal processing unit 5, and the signal output end of the signal processing unit 5 is connected with the communication and the external interface 6; the weak outpu...
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