摘要
本文研究了脉压码时间旁瓣的特性。证明了几个定理。并利用时间旁瓣自身互补定理对63位PN码的时间旁瓣作了相消仿真研究。用这种方法仅需要作很少的加法运算。文中还对优选码的问题举出实例以说明如何应用文中的定理来减少优选低旁瓣码的搜索时间。
Some basic properties of the time-sidelobe of arbitrary sequence's auto-correlation function have been studied and several theorems of the time-sidelobe of sequence's autocorrelation function are proved also in the paper. Some practical exam-ples are given using the theorems. The first example is to search low sidelobe codes, and the second example use sidelobe's self-complementary property to cancel sidelobes of 63 bit PN code. Finally, it is point out that the method for cancelling sidelobe needs only add operation.
关键词
脉压码
自相关函数
时间旁瓣
雷达
Pulse compression code
Autocorrelation function
Time .sidelobe
Cancelling sidelobes, Sidelobe codes searching
