摘要
针对传统傅里叶变换对雷达回波信号分析方法所存在的不足,提出了利用小波变换的方法来改善雷达回波信号的质量.分析了小波变换的原理,并在此基础上着重论述了小波变换去除噪声的原理和方法.仿真试验和实际数据验证结果表明,该方法改善了雷达回波信号中波形的质量,提高了目标信号的识别率,切实可行,具有一定应用价值.
To solve the deficiency of traditional Fourier transform on radar echo signal, the approach using wavelet transform is proposed. Based on analyzing the principle of the wavelet transform, this article discusses the principle and the methods of applying the wavelet transform in restraining noise of the radar echo signal. Imitating experiments and the data show that the method has improved wave form quality of radar echo signal and raised the rate of target recognition. We can conclude that the method is available and has certain using value.
出处
《机械与电子》
2009年第1期61-64,共4页
Machinery & Electronics
基金
教育部春晖计划
贵州省科技厅工业攻关项目(Z053016)
关键词
雷达
小波变换
目标识别
噪声
radar
wavelet transform
target recognition
noise
