编码非线性连续相位调制

Eleventh Annual International Phoenix Conference on Computers and Communication [1992 Conference Proceedings] Pub Date : 1992-04-01 DOI:10.1109/PCCC.1992.200561

J. Fonseka, T. R. Mao

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引用次数: 0

摘要

通过扩展非线性连续相移频键控(CPFSK)信号，引入了一类非线性连续相位调制信号。为了进一步提高非线性CPM信号的性能，我们考虑了编码。数值结果表明，编码和未编码的CPM信号都能获得有吸引力的最小欧氏距离。据报道，在相同数量的州，增益超过1.8 dB。非线性CPM信号的频谱特性与调制指数为0.5的全响应线性CPM信号保持接近。结果表明，用有限状态机和标准调制器都可以实现非编码和编码的非线性CPM信号。

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Coded nonlinear continuous phase modulation

A class of nonlinear continuous phase modulation (CPM) signals is introduced by extending nonlinear continuous phase frequency shift keying (CPFSK) signals. Coding is considered to further improve the performance of nonlinear CPM signals. Numerical results indicate that both uncoded and coded CPM signals achieve attractive minimum Euclidean distances. Gains of over 1.8 dB over previous schemes have been reported at the same number of states. The spectral properties of nonlinear CPM signals are kept close to those of full response linear CPM with a modulation index of 0.5. It is shown that both uncoded and coded nonlinear CPM signals can be realized by using a finite state machine and a standard FM modulator.<>

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Eleventh Annual International Phoenix Conference on Computers and Communication [1992 Conference Proceedings]

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