调频线性度对线性调频信号性能影响分析  

Effects of FM linearity on the performance of LFM signals

作　　者：陆必应[1] 梁甸农[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《系统工程与电子技术》2005年第8期1384-1386,共3页Systems Engineering and Electronics

摘　　要：针对去调频和脉冲压缩两种不同的处理方式,深入研究了线性调频信号调频线性度对信号性能的影响,得到LFM信号带宽越大,误差频率越低,对线性度要求越高的结论,且在相同边带抑制的条件下,去调频处理比脉冲压缩处理对LFM信号线性度的要求大约提高了一倍。仿真结果验证了理论分析的正确性。The effects of FM linearity on LFM signals are studied based on deramp and pulse-compression processing. It is shown that higher FM linearity is needed with the increase of the sinai bandwith and decrease of the frequency of phase error. With the same paired sidebands, twice FM linearity is needed by using deramp processing method compared with pulse-compression processing method. The simulation result proves the conclusions.

关 键 词：线性调频信号 调频线性度 去调频处理 脉冲压缩 

分 类 号：TN911[电子电信—通信与信息系统]