S型非线性调频脉冲信号的模糊函数和性能分析  

The Fuzziness Function and Performance Analysis of a S Mode Nonlinear Chirp

作　　者：徐益初[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《现代雷达》2001年第S1期39-45,共7页Modern Radar

摘　　要：给出了经海明函数加权的线性调频信号和 S型非线性调频信号的模糊函数 ,画出了它们的模糊图。计算出这两种调频信号的增益系数 ,给出了不同多普勒频率时这两种信号的脉冲压缩波形。实验非线性色散线样品的中心频率为 30 MHz,带宽为 4.5 MHz,时宽为 2 6μs,获得 30 dThe frequency spectrum function and the fuzziness function of the S-mode nonlinear chirp is described in this paper, and the fuzziness function of the linear chirp weighted by the hamming function is described .The capability of the two chirps are analyzed and compared in detail. The test uses a S mode nonlinear chirp, which has 30MHz center frequency, 4.5MHz bandwidth and 26μs dispersion time ,the result achieves 30dB PSL.

关 键 词：非线性 模糊函数 稳定相位原理 多普勒频率 

分 类 号：TN911.71[电子电信—通信与信息系统]