消光移动卫星信道中穿孔栅格编码的频率/相位调制

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI:10.1109/NRSC.2001.929395

R. El-awady, M.A. Bahie Eldin, L. F. Gergis

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引用次数: 0

摘要

通过对原始码的低率1/n进行周期性消除(穿刺)，可以实现一组高速率的穿刺卷积码。该系统的主要优点是，与原始码的较低速率匹配的单个维特比解码器可以用于解码通过穿刺该码获得的所有较高速率。研究了AWGN和衰落移动卫星信道中恒包络频相(FPM)调制信号集的穿孔网格编码调制性能。结果表明，该调制方案优于其他调制方案。

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Punctured trellis (P-Trellis) coded frequency/phase modulation in faded mobile satellite channels

A set of high-rate punctured convolutional codes can be implemented by the periodic elimination (puncturing) of a low rate 1/n of the original code. The main advantage for this system is that a single Viterbi decoder matched to the lower rate of the original code can be used to decode all higher rates obtained by puncturing this one code. This paper studies the performance of punctured trellis coded modulation of constant envelope frequency and phase (FPM) modulated signal sets for AWGN and fading mobile satellite channels. Results showed the superiority of proposed modulation scheme over other types of modulation.

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Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462)

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