一种新型多相副瓣抑制码

S. Searle, S. Howard
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引用次数: 18

摘要

提出了一种由Golay码改进得到的二进制码序列。该码的副瓣与主瓣相位不一致,这一特性有利于它们的去除。未知的延迟相关相位项导致了Golay对在频率上的复用。然而,发现修改后的Golay代码具有自相关,其平方与代码的原始Golay伙伴的平方互补。当修改后的代码在伙伴的上方和下方以相等的偏移量进行多路复用时,这使得互补行为得以实现。应用包括雷达回波中的旁瓣去除。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A novel polyphase code for sidelobe suppression
A binary code sequence attained by modification of a Golay code is proposed. This code has sidelobes which are out of phase with the main lobe, a property which facilitates their removal. Unknown delay-dependent phase terms proclude the multiplexing of a Golay pair in frequency. However the modified Golay code is found to have an autocorrelation whose square is complementary with that of the code's original Golay partner. This enables complementary behavior to be achieved when the modified code is multiplexed at equal offsets both above and below the partner. Applications include sidelobe removal in radar returns.
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