| 摘要 |
Disclosed is a detection or communication system and method. The detection or communication method and system includes a code generator for generating a set of N complementary Golay sequences, the code generator encodes a baseband signal with the complementary Golay sequences wherein the complementary Golay sequences have an ideal autocorrelation and the sum of cross-correlations of every Golay complementary sequence set is zero thereby reducing phase difference and Doppler effects. The detection or communication system and method also includes a modulator for modulating each of the N sets of encoded complementary Golay sequences onto separate frequencies and a transducer for transmitting the modulated N sets of encoded complementary Golay sequences, the transducer receiving the transmitted signal reflected from an object, a demodulator for demodulating the received signal into N sets of complementary baseband signals and a correlator for correlating the demodulated complementary baseband signals, thereby generating a signal from the correlated baseband signals.
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