Constant envelope multiple trellis-coded MSK for phase coded waveforms in complementary sequences sensor pulse compression

IEEE International Conference on Electro Information Technology : [proceedings]. IEEE International Conference on Electro Information Technology Pub Date : 2014-06-05 DOI:10.1109/EIT.2014.6871749

Ashraf Seleym

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引用次数: 0

Abstract

Complementary coded pulse compression waveforms implementation is introduced in many publications based on using the quadrature phase shift keying modulation (QPSK). The abrupt phase changes in QPSK can lead to fluctuations in the signal waveform amplitude and make it susceptible to system nonlinearities. This can lead to sidelobes non-cancellation because of imbalance correlation in compressing the two coded pulses. This paper proposed complementary sequences pulse compression waveforms based on using multiple trellis-coding with minimum shift keying (MSK) modulation for each sequence. A special design of trellis encoders is proposed to maintain a constant envelope waveform to be robust to nonlinearities and getting a high error rate performance in detecting the complementary sequences in noise effect. Therefore, results explored a perfect zero sidelobe levels in pulse compression.

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互补序列传感器脉冲压缩中相位编码波形的恒包络多栅格编码MSK

基于正交相移键控调制(QPSK)的互补编码脉冲压缩波形实现在许多出版物中都有介绍。QPSK中的相位突变会导致信号波形幅度的波动，使其容易受到系统非线性的影响。在压缩两个编码脉冲时，由于不平衡的相关性会导致副瓣不抵消。本文提出了基于多栅格编码的互补序列脉冲压缩波形，每个序列采用最小移位键控(MSK)调制。提出了一种特殊的栅格编码器设计，以保持恒定的包络波形对非线性的鲁棒性，并在噪声效应下检测互补序列时获得高错误率的性能。因此，研究结果探索了脉冲压缩中完美的零旁瓣电平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE International Conference on Electro Information Technology : [proceedings]. IEEE International Conference on Electro Information Technology

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