CAJ | 학술논문

为了有效地实现在小数据脉冲样本和高脉冲丢失的环境下对雷达脉冲重复间隔(Pulse Repetition Interval,PRI)调制类型的准确识别,采用符号编码理论对雷达脉冲PRI序列进行符号化处理,对得到的编码序列进行修正以及特征码序列的选取、搜索和统计,最后依据相应的判决规则得到最终的识别结果。仿真实验表明,与传统的方法相比,采用的方法有效地克服了小数据脉冲样本和高脉冲丢失环境对雷达PRI序列的特征提取和调制类型的识别所带来的不利影响,为解决这一问题提供了一种新的思路。
위료유효지실현재소수거맥충양본화고맥충주실적배경하대뢰체맥충중복간격(Pulse Repetition Interval,PRI)조제류형적준학식별,채용부호편마이론대뢰체맥충PRI서렬진행부호화처리,대득도적편마서렬진행수정이급특정마서렬적선취、수색화통계,최후의거상응적판결규칙득도최종적식별결과。방진실험표명,여전통적방법상비,채용적방법유효지극복료소수거맥충양본화고맥충주실배경대뢰체PRI서렬적특정제취화조제류형적식별소대래적불리영향,위해결저일문제제공료일충신적사로。
In order to accurately identify the radar pulse repetition interval (PRI) modulation type in small samples and high pulse missing environment, the symbol-coding theory is used in the symbolic processing of PRI radar pulse sequence, and modification is carried on the obtained coding-sequence, then the feature code sequence selection, search and statistics, at last the final recognition results are obtained on the basis of the corresponding decision rule. Simulation results show that compared with the traditional methods, this method used can effectively overcome the adverse impact of small sample data pulse and high pulse missing environment on radar PRI sequence feature extraction and modulation type recognition, providing a new idea to solve this problem.