4PSK-2PSK旋转不变性调制的中医编码

[Proceedings] Singapore ICCS/ISITA `92 Pub Date : 1992-11-16 DOI:10.1109/ICCS.1992.255085

P. Szulakiewicz

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引用次数: 0

摘要

本文给出了一个设计具有三维4PSK-2PSK信号空间的180度旋转不变TCM码的实例。所有编码器的输入位都直接传送到输出端。不需要差分编码器。这就消除了接收机中差分译码操作引起的误差倍增效应。给出了2、4、8、16和32编码器状态的例子。与未编码的BPSK相比，编码增益为1.76 dB(2个编码器状态)和5.44 dB(32个编码器状态)。

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TCM codes for 4PSK-2PSK modulation with invariance under rotation

The paper contains an example of designing a 180 degrees rotationally invariant TCM code with 3-dimensional 4PSK-2PSK signal space. All encoder input bits are carried directly to the output. No differential encoder is necessary. This eliminates the error multiplication effect caused by the differential decoding operation in the receiver. Examples are presented for 2, 4, 8, 16 and 32 encoder states. The codes achieve coding gain of 1.76 dB (for 2 encoder states) of 5.44 dB (for 32 encoder states) compared with the uncoded BPSK.<>

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[Proceedings] Singapore ICCS/ISITA `92

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