The performance of dually polarized M-QAM and L-QPRS systems with crosstalk and differential phase shift
作者： K.V. Cartwright , E.J. Kaminsky , E.P. Williamson , P.F. Duvoisin , S.T. Hsieh
DOI: 10.1109/SECON.1991.147917
关键词: Carrierless amplitude phase modulation 、 Quadrature amplitude modulation 、 Amplitude modulation 、 Telecommunications 、 Keying 、 Phase-shift keying 、 Amplitude and phase-shift keying 、 Physics 、 Quadrature modulation 、 Mathematical analysis 、 Differential phase
摘要: The probability of symbol error (P/sub E/) performance is studied for cross-polarized M-QAM (M-ary quadrature amplitude modulation) and L-QPRS (L-ary partial response signal) systems operating in the depolarization crosstalk differential phase shift environment. Explicit general formulas are provided results presented dual-channel 4-QAM (QPSK-quadrature phase-shift keying) 9-QPRS. It demonstrated that P/sub E/ varies with a period 90 degrees less sensitive to than corresponding systems; sensitivity measured by ratio maximum minimum E/. >
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