摘要
PRI变换算法可抑制子谐波,对于重频抖动雷达信号具有很好的分选效果,但在采用直接序列搜索时,由于脉冲到达时间抖动导致很难成功搜索和准确计算PRI值,容易产生漏选和错选。采用线性拟合序列搜索,可通过不断对计算误差进行收敛修正,从而精确得到PRI值,以保证后续的正常分选。
The PRI transform algorithm can restrain sub-harmonics and has a good sorting performance for PRI jittered radar signals.However,it is difficult to obtain accurate PRI value with the direct sequence sorting method due to TOA jitter of pulse signals,which leads to false or missed selection.The linear fitting sequence sorting method features continuous convergence correction on the calculation error,so that accurate PRI value can be obtained for following proper signal sorting.
作者
白昊
石鹏颉
陈耿
李万玉
BAI Hao;SHI Pengjie;CHEN Geng;LI Wanyu(Xi’an Electronic Engineering Research Institute, Xi’an 710100;Xi’an XICE Testing Technology Co. , Ltd, Xi’an 710076;Xi’an Bit Univation TECH Co. , Ltd, Xi’an 710100)
出处
《火控雷达技术》
2021年第3期31-34,共4页
Fire Control Radar Technology
关键词
重频抖动
线性拟合
收敛修正
信号分选
PRI jittered signal
linear fitting
convergence correction
signal sorting
