基于解线性调频处理的步进调频信号合成方法  

Synthesis Method of Stepped-frequency Signal Based on De-chirp Processing

作　　者：刘国华[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2014年第1期45-48,共4页Shipboard Electronic Countermeasure

摘　　要：目前广泛应用的宽带信号实现与处理方法主要包含宽带信号解线性调频和步进调频信号合成2种。对这2种方法的优缺点进行了分析,提出了一种基于解线性调频处理的步进频宽带信号合成方法,该方法可以实现高分辨率系统中射频前端与信号处理设计难度的相互转化,根据系统资源进行指标的最优化分配。利用仿真数据对该方法进行了验证,表明了方法的有效性和优越性。At present the widely applied realization and processing methods of wideband signal mainly include two kinds ：wideband signal de-chirp and stepped-frequency signal synthesis .This paper analyzes the advantages and disadvantages of the methods ,brings forward a synthesis method of stepped-frequency wideband signal based on de-chirp processing ,the mutual conversion of design difficulty between radio frequency （RF） front-end and signal processing in high-resolution system can be achieved through the method ,optimized distribution of the indexes can be made according to system resources .This method has been validated by means of the simulation data and the result proves its effectiveness and superiority .

关 键 词：逆合成孔径雷达 一维距离像 宽带信号合成 解线性调频处理 步进频 

分 类 号：TN957.51[电子电信—信号与信息处理]