摘要
为了取得最大无模糊距离和最大无模糊速度,脉冲多普勒雷达必须选择合适的一系列脉冲重复间隔值。从理论上探讨了脉冲多普勒雷达最大无模糊距离和最大无模糊速度的制约因素,研究了对脉冲重复间隔进行最优化选择的方法。研究结果表明,对于带宽典型值为3 kHz,脉冲宽度典型值为3μs的X波段雷达,最佳脉冲重复间隔PRI为31.6μs。当脉冲重复间隔必须在若干个值之间转换,以便探测目标并消除模糊时,脉冲重复间隔可以近似为该值。
A series appropriate Pulse Repetition lnterval（PRI）must be choosed to gain max non- illegibility distance and max non - illegibility velocity in PD radar. The restrict factors to max non - illegibility distance and max non - illegibility velocity of PD radar are discussed in theory and the method to the optimization choice of Pulse Repetition Interval is researched. The research result indicates that the best PRI is 31. 6us for X band radar of 3 kHz bandwidth,3 us PW. The best PRI may approximate this value when PRI must be changed between several values to detective target and avoid distance illegibility.
出处
《现代电子技术》
2009年第21期35-36,39,共3页
Modern Electronics Technique
