Patent ID: 8112039
Filing Date: 2012-02-07
Classification: G01S,G06Q

Abstract:
1. A method for detecting radar signals in a communication system, the method comprising: receiving a raw energy detect signal; determining if the raw energy detect signal contains a valid radar pulse, the valid radar pulses having a pulse width within a predetermined limit; shifting a bit having a first value if a valid radar pulse was detected or a second value indicating that a valid pulse was not detected in to a shift register having a plurality of taps arranged in a plurality of tap combinations each corresponding to one of a plurality of time-invariant waveforms defined by specified pulse widths and pulse repetition intervals (PRI); detecting a set of bits at the plurality of taps in the shift register and counting the number of taps having valid pulses for each tap combination; and indicating that the radar signal is detected when the number of taps in the shift register having a valid pulse corresponds to one of the time-invariant waveforms.