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Investigates bit error rate (BER) performance of a GMSK frequency detection system. The channel measurement information (CMI) for a bit in the received block is calculated from samples of the received signal envelope (Rs) and the demodulator output (eye level). The CMIs of eye level*Rs and of Rs2 are investigated, and the decoding performances for the CMIs are compared using the Hamming (7, 4) code in nonfading (static) and fading channels in laboratory experiments.
Date of Publication: 16 Feb. 1989