一种改进的小波变换抗箔条干扰算法  

A modified algorithm of anti-chaff jamming with wavelet transform

作　　者：汤广富[1] 陈远征[1] 赵宏钟[1] 付强[1] 

机构地区：[1]国防科技大学电子科学与工程学院ATR实验室,湖南长沙410073

出　　处：《雷达与对抗》2005年第2期20-24,共5页Radar & ECM

摘　　要：释放箔条对抗反舰导弹是一种技术简单、成本低廉却效果显著的电子干扰措施。现有反舰导弹末制导雷达系统中的抗箔条干扰方法存在着诸多缺点,如成本高、技术复杂和效果不明显等。小波变换是一种根据目标与箔条云回波信号细节系数相关性的不同而将二者进行区分的算法,具有识别效果好、算法快速和适用范围广等优点。本文对原有的小波变换方法进行了修正,计算机仿真实验证明了该算法的有效性。Launching chaffs is a simple, inexpensive but effective ECM to defend against anti-ship missiles. Some disadvantages such as high cost, complex technology, ineffectiveness exist in the anti-chaff measures taken by the terminal guidance radar system for anti-ship missiles.Ships and chaffs are distinguished through the difference of their wavelet details’ relativity by the wavelet transform algorithm, which is effective, fast and widely applicable. The algorithm of wavelet transform is modified in this paper, and the simulation proves that it is effective.

关 键 词：箔条干扰 抗干扰 小波变换 

分 类 号：TN973.3[电子电信—信号与信息处理]