摘要
文中研究了一种子波谱估计方法.将该方法用于实际的毫米波雷达目标一维距离成像背景之下,在信号采样频率、采样数据长度相同时,可以获得像分辨率高于相同条件下FFT方法的一维距离像,从而可以对一维距离像进行高分辨地分析,在实际应用中具有一定的意义。
This paper studies a method using wavelet transform to estimate the signal's spectrum. The method is applied to the practical MMW radar targets echo signals, and on the condition of the same sampling frequency and sampling data length, it can achieve one dimensional range profile with profile's resolution superior to FFT's, so the one dimensional range profile of targets can be analyzed with high resolution, there is certain significance in the practice.
基金
国家自然科学基金69896250资助项目
关键词
子波变换
谱估计
一维距离成像
毫米波雷达
Wavelet transform
Spectrum estimation
One dimensional range profile
Profile resolution
