一种新的二相码旁瓣抑制滤波器
A NOVEL SIDELOBE SUPPRESSION FILTER FOR BINARY PHASE CODED WAVEFORMS
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摘要: 二相编码是一种在雷达脉冲压缩中得到广泛应用的波形,但是一般的二相码波形的旁瓣抑制算法只适用于短码(如Barker码等),且设计得到的滤波器阶数比较高。本文提出了一种新的基于时域综合的二相码旁瓣抑制滤波器,能适用于各种长度的二相码,包括m序列等。文中给出了m序列和Barker码旁瓣抑制滤波器结果,并与现有的滤波器性能进行了比较。
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关键词:
- 二相码; 旁瓣抑制; 时域综合
Abstract: Binary Phase Coded Waveform(BPCW) is a widely used waveform in radar pulse compression, but the Sidelobe Suppression Filter(SSF) designing algorithms for BPCW are always limited to short codes such as Barker code, and the ranks of the SSF are always high. A new kind of SSF based on time domain synthesis is presented. It can be used for various length codes, including the m-sequence and so on. Some simulation results of time domain synthesized SSF for the Barker code and m-sequence are given, with the performance comparison of the new filter with some known filters. -
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