Synchronous detector with reduced error computation for maximal-ratio combining

摘要: In a RAKE receiver, radio frequency CDMA signal is converted to baseband digital and despread with multiple despreading sequences of different phase timing produce signals. Synchronous detectors are arranged receive the signals as input symbol cross-correlations between an output sequence, detect auto-correlation fading vectors representative ratios auto-correlation, demodulate vectors, auto-correlations sequences, estimate errors from sequences. Amplitudes estimated The demodulated maximal-ratio combined according amplitudes. From signal, sequence produced by decision circuit.