低分辨雷达螺旋桨飞机回波调制特性的研究  

STUDIES OF MODUALATION CHARACTERISTICS OF PROPELLER AIRCRAFT RETURNS IN THE LRR

作　　者：丁建江[1] 张贤达[1] 

机构地区：[1]清华大学自动化系智能技术与系统国家重点实验室,北京100084

出　　处：《电子与信息学报》2003年第4期460-466,共7页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(69772023)

摘　　要：结合螺旋桨飞机结构和低分辨雷达特点提出了低分辨雷达螺旋桨飞机回波调制特性的实用数学模型,井用实际的螺旋桨飞机和低分辨雷达参数对该模型进行了详细的分析和仿真。分析了某低分辨雷达螺旋桨飞机实际回波的调制特性,讨论了低分辨雷达有关参数对调制特性的限制。最后把分析结果和仿真结果进行了比较,得到了理论模型和实际相一致的结论。建立了低分辨雷达调制特征和目标结构的数学关系。A practical mathematic model of modulation characteristics of Propeller Aircraft (PA) returns in the Low-Resolution Radars (LRR) is proposed in the paper, based on configuration of PA and characteristics of LRR. The model is analyzed and simulated with actual parameters of PA and LRR. Then, modulation characteristics of actual returns from PA in the LRR are analyzed, and modulation limitations from LRR are discussed. Finally, a comparison between the analyzed and simulated results shows the agreement of theoretical model with practical application. Mathematics relationship between modulation of LRR and target configuration is established.

关 键 词：低分辨雷达 螺旋桨飞机 发动机 目标识别 数学模型 回波调制特性 

分 类 号：TN959.73[电子电信—信号与信息处理] TN914.3[电子电信—信息与通信工程]