De-modulation of MOK(M-ary orthogonal modulation)

摘要

Apparatus for iterative detection and demodulation of M-ary orthogonal signals (MOK) and signals using Complementary Code Keying (CCK). The apparatus comprises a non-coherent detector that is used during the first iteration and in subsequent iterations uses a coherent detector that is responsive to a soft decoder that is responsive to the detectors. For MOK signals use is made of the first chip, which is known, obviating the need for a pilot signal.