Patent ID: 7782245
Filing Date: 2010-08-24
Classification: G01S,H01Q

Abstract:
1. A frequency modulated continuous wave (FMCW) radar system comprising a frequency generator and a homodyne receiver arranged to process signals received from a target so as to identify a Doppler frequency associated with the target, wherein the frequency generator is arranged to generate a plurality of sets of signals, the signals within a given set having the same carrier frequency and each set having a different carrier frequency, the frequency generator comprising a digital synthesiser arranged to frequency modulate a continuous wave signal of a given carrier frequency by a sequence of modulation patterns whereby to generate a said set of signals, said individual ones of said patterns being repeated within a set, wherein the receiver is arranged to process signals indicative of radiation reflected from a target so as to derive frequency data therefrom, said derived frequency data representing a tone corresponding to said target.