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本文定义自相关为δ函数的一大类序列为互补型序列,介绍了六种序列,指出互补型序列的基本形式是互补序列,而其他序列都可由互补序列导出或推广而来。 当前由于信号处理技术的进展,能在较窄多普勒范围内得到低距离旁瓣的互补序列倒相编码脉冲压缩雷达已经问世。这种雷达可以用时分、频分等方法隔离序列,最佳互补序列对和最佳序列应该选择模糊函数的旁瓣为最低的。 曾证明过,如Loran-c这样的无线电导航系统,采用按链接、插接、取伴偶步骤构成的互补序列,能够具有抑制天波干扰,自动搜索、识别和跟踪的能力。 互补序列在声表面波换能器编码和红外线光谱测定中也有应用。
In this paper, we define a series of autocorrelation δ functions as complementary sequences, introduce six kinds of sequences, point out that the basic form of complementary sequences is complementary sequence, and other sequences can be derived or extended from complementary sequences. At present, due to the progress of signal processing technology, a complementary sequence inverted-coded pulse compression radar that can obtain a low-range sidelobe within a narrow Doppler range has come out. The radar can use time-division, frequency separation and other methods to isolate the sequence, the best complementary sequence pairs and the best sequence should choose the fuzzy function of the sidelobe as the lowest. It has been demonstrated that radionavigation systems such as Loran-c, which have the complementary sequence of linking, docking, and mating steps, can have the ability to suppress skywaves, automatically search, identify, and track. Complementary sequences are also used in SAW transducer coding and infrared spectroscopy.