| 用于脉间码捷变脉冲压缩雷达的低旁瓣m序列码 |
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| 引用本文： | 陆延丰,周国富.用于脉间码捷变脉冲压缩雷达的低旁瓣m序列码[J].清华大学学报(自然科学版),1988(4). |
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| 作者姓名： | 陆延丰 周国富 |
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| 作者单位： | 无线电电子学系
(陆延丰)，无线电电子学系(周国富) |
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| 摘 要： | 讨论了ｍ序列码非周期自相关函数的统计（积累）特性。首先证明采用ｍ序列码积 累可能得到的统计自相关函数主旁瓣比的上限为２ｐ（ｐ为码长），并给出了对（ｐ＋１）／２ 个不同初相的ｍ序列码作加权积累获得主旁瓣比为２ｐ的方法。其次提出了采用较少 码字（（ｐ＋１）／８个）作简单积累，得到了统计自相关函数主旁瓣比为ｐ的码集。
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| 关 键 词： | 脉冲压缩 m序列码 雷达系统 |
A Low Sidelobe m-Sequence Code Set for Pulse Compression Radar |
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| Lu Yanfong,Zhou Guofu.A Low Sidelobe m-Sequence Code Set for Pulse Compression Radar[J].Journal of Tsinghua University(Science and Technology),1988(4). |
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| Authors: | Lu Yanfong Zhou Guofu |
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| Affiliation: | Department of Radio Electronics |
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| Abstract: | This paper discusses the characteristics of accumulated autocorrelation function of m-sequence code. At first, it is proved that the upper limit of peak-to-sidelobe ratio of accumulated autocorrelation function is 2p, where p is the length of code. Then a weighted accumulation method is given. When (p+1)/2 autocorrelation functions of different initial phase m- sequence code are processed by weighted acumulation, the peak-to-sidelobe ratio can reach 2p. Finally, this paper presents a optimum code set, which contains only (p + 1)/8 codes. Using these codes for simple accumulation the peak-to-sidelobe ratio p can be obtained. |
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| Keywords: | pulse compression m-sequence code radar system |
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