Continuous wave radar feed-through nulling system and method
A wave radar and leaked signal technology, applied in the new leaked signal suppression field, can solve the problems of complex elimination of equipment, difficulty in fast and accurate matching of leaked signals, etc., and achieve the effect of high suppression ratio, accurate measurement, and reduced requirements.
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[0030] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0031] Such as figure 1 Shown is the system block diagram of the continuous wave radar leakage signal cancellation system of the present invention, the leakage signal cancellation system of the present invention includes: a transmitting antenna, a receiving antenna, a transmitting channel, a receiving channel and a signal processor, and the transmitting antenna radiates the signal of the transmitting channel The receiving antenna receives the echo signal and the direct wave signal leaked from the transmitting antenna. The transmitting channel is composed of a filter amplification module, an up-conversion module and a power amplifier; the receiving channel is composed of a low-noise amplifier, a down-conversion module, and a filter amplification module. and a quadrature demodulation module; the signal processor includes an analog signal...
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