S型非线性调频信号及其多普勒频率范围  

S-mode Nonlinear Frequency Modulated Pulse Signal and

作　　者：徐益初[1] 郝晓勤[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《现代雷达》2003年第4期33-35,共3页Modern Radar

摘　　要：给出了 S型非线性调频信号的传递函数 ,由传递函数算出了群延迟、频谱函数和模糊函数表达式 ,并根据模糊函数获得了 S型调频信号的各项基本性能研究表明 ,只有小时间宽度的 S型调频信号才能得到有实用价值的多普勒频移宽度 。The transfer function of a S mode nonlinear frequency modulated pulse signal is proposed in this paper, The group delay , spectrum function and ambiguity function expression are calculated from the transfer function, and each basic capability of S mode nonlinear frequency modulated signal is obtained from ambiguity function. The example studied in the paper indicates that only S mode nonlinear frequency modulated pulse signal with a little time width can obtain practical doppler frequency domain.

关 键 词：S型 非线性调频信号 模糊函数 多普勒频率 群延迟 传递函数 

分 类 号：TN76[电子电信—电路与系统]