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US07652615B2 Methods and systems providing an adaptive threshold for a beam sharpened pulse radar 失效
为光束锐化脉冲雷达提供自适应阈值的方法和系统

Methods and systems providing an adaptive threshold for a beam sharpened pulse radar
Abstract:
A radar sensor is described that includes a radar transmitter, a radar receiver configured to receive reflected returns of signals output by the radar transmitter, and a signal processing unit configured to process signals received by the radar receiver. The signal processing unit includes a comparator, a first filter comprising an output coupled to a reference input of the comparator, and a second filter comprising an output coupled to a signal input of the comparator. The first and second filters are configured to receive a common input related to the reflected returns. The first filter is configured to have a time constant such that a rise time of the first filter output is faster than a rise time of the second filter output.
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