超宽带雷达中基于小波变换的时延估计方法

A new time delay estimation for the ultra wide-band radar

在分析时延估计方法及存在的问题的基础上 ,为提高时延估计的准确性和算法速度 ,通过小波的分解与重构算法在不同的分辨率级别上进行时延估计 ,得出了超宽带线性调频雷达中基于小波多分辨方法的时延估计新算法。由于这种算法对于信号及噪声的特性并未提出要求 ,因而适合于超宽带雷达中的时延估计。

By analyzing the method and problems in the time delay estimation, a new time delay estimation method was proposed. In the new method, wavelet transform was performed and the time delay was performed in each sub-band .The resolution and the algorithm speed is improved with the method. The method is suitable for the time delay estimation in the ultra wide-band radar.