摘要: A coded modulation scheme based on trellis codes combined with continuous-phase modulated (CPM) signals is considered. Trellis-coded CPM (TCCPM) a technique for the transmission of digital information over bandwidth- and power-limited channels such as satellite-based terrestrial radio links (MSAT). While provide power efficiency, choice yields constant-envelope good spectral properties. The complexity associated optimum detection resolved by using differential symbol-by-symbol detection. performance this suboptimum assessed simulation. Comparisons other competing signals, e.g., trellis-coded 8 DPSK, show TCCPM to be attractive wide class wireless communications systems. >
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