一种基于TENT映射的新型低截获脉压雷达信号  

Novel LPI Pulse Compression Radar Waveform Based on TENT Map

作　　者：熊张亮[1] 是湘全[1] 

机构地区：[1]南京理工大学电光学院电子工程系,南京210094

出　　处：《舰船电子工程》2004年第4期111-113,117,共4页Ship Electronic Engineering

摘　　要：着眼于低截获雷达系统的工程实现 ,提出了一种实现简单 ,性能优越的基于TENT映射的新型低截获脉压雷达信号波形 ,该波形采用了脉间由混沌信号控制码型跳变 ,脉内由m序列调相 ,相邻脉冲采用m序列优选对的低截获波形设计技术。分析了这种雷达信号波形的数学模型和统计特性 ,从平均模糊函数的角度讨论了该雷达信号与真随机二相码调相之间的关系并给出了其对应的波形产生与信号处理模块系统框图。理论分析和仿真结果均表明 ,这种雷达信号波形具有良好的距离速度分辨力、很低的截获概率和优异的ECCM性能 。Considering the simple realization of Low Probability of Interception (LPI) radar system, a novel LPI pulse compression radar waveform based on TENT map is proposed. The statistical characteristics and the Average Ambiguity Function (AAF) of the waveform are analyzed and at last the realization of radar system with this kind of waveform is given. The results of analysis and simulation both show that the combination of series with chaotic system can product large number of series sets with good correlation characteristics. Thus obtained radar waveforms not only own good resolution in distance and speed but also show excellent LPI and ECCM performance.

关 键 词：低截获 脉压雷达信号 工程实现 TENT映射 

分 类 号：TN95[电子电信—信号与信息处理]