一种改进的基于DTOA统计的信号分选算法  

Improved Radar Signal Deinterleaving Algorithm Based on DTOA Histogram

作　　者：黄桂根[1] 傅有光[1] 武月婷[2] 

机构地区：[1]南京电子技术研究所,南京210039 [2]中兴通讯南京研发中心,南京210012

出　　处：《数据采集与处理》2011年第4期430-435,共6页Journal of Data Acquisition and Processing

摘　　要：脉冲重复间隔(PRI)是雷达辐射源脉冲列信号的重要参数。本文对传统积累到达时间差(DTOA)值直方图算法中统计门限的确定进行了理论分析,通过应用多个统计检测门限能够高效、准确分选出固定和参差调制类型的雷达脉冲列信号。将积累DTOA值直方图改进算法和序列搜索改进算法相结合,设计并分析了分选算法流程,通过严格控制分析流程,可大幅较少谐波的影响,提高信号分选效率。仿真分析和实际应用均表明,该方法切实有效。Pulse repetition interval （PRI） is one of the most important interpulse parameters in radar emitter pulse trains signal. Traditional cumulative TOA difference histogram statistical algorithms are studied and improvement is made. The statistics tolerance and the statistics threshold of the algorithm are analyzed theoretically. Mutil-statistical threshold is designed and applied to deinterleave pulse trains with stable or stagger PRI efficiently and correctly. The deinterleaving algorithm flow is designed, which combines the cumulative TOA difference histogram statistical algorithm deinterleaving flow strictly, ha with the rmonlc sequence searching method. decreased and the algorithm With controlling signal is efficient. Application on actual ECCM system shows that the improved algorithm is feasible.

关 键 词：雷达电子对抗 雷达信号分选 脉冲重复间隔 到达时间差(DTOA) 

分 类 号：TN971[电子电信—信号与信息处理]