摘要
为了研究无瞬时宽带的雷达系统通过步进频方式合成宽带信号的目标测距性能,对步进频子脉冲串采用去斜体制合成宽带的原理进行了理论推导;针对常规处理流程存在测距精度受限的缺点,引入M-Rife算法设计新的算法处理流程,并对该算法流程的性能边界进行了仿真.理论分析及仿真结果表明,优化处理流程后的算法在不显著增加运算复杂度的条件下可显著提升目标的测距精度,具有较好的工程应用价值.
In order to study the target ranging performance of a radar system without instantaneous broadband signal synthesized by stepping frequency,this paper theoretically deduces the principle of stepped frequency sub-pulse string synthesizing broadband through de-chirp mode.Then,aiming at the defect of limited range accuracy in conventional processing flow,the paper introduces M-Rife algorithm to design a new algorithm processing flow,and finally simulates the performance boundary of the algorithm flow.Theoretical analysis and simulation results show that the algorithm with its processing flow optimized can significantly improve the ranging accuracy of targets without significantly increasing the computational complexity,thus having great value in engineering application.
作者
杨飞
陈涛
彭哲凡
王圣翔
郭宏伟
YANG Fei;CHEN Tao;PENG Zhefan;WANG Shengxiang;GUO Hongwei(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)
出处
《空天预警研究学报》
CSCD
2023年第6期403-405,411,共4页
JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH
关键词
步进频
去斜模式
合成宽带
M-Rife算法
stepped frequency
de-chirp mode
synthetic broadband
M-Rife algorithm
