摘要
在连续波雷达信号事后处理过程中,当目标的加速度比较大、信噪比又比较低时,各种算法很难处理出正确的结果。而目标的径向加速度是一个非常关键的参数。对它的成功的估计是后续处理中得到目标速度与距离的一个重要前提。本文针对这种情况,对连续波雷达回波频谱幅度产生原因进行分析,提出了二次曲线拟合频谱幅度来估计加速度的方法。仿真证明该方法的有效性。
In the post signal processing of CW radars, when the radial acceleration of the target is big and the SNR is low, most methods to estimate it are incompetent for getting the precise result. However, the radial acceleration is a key parameter; especially when it is big, the successful estimation is an important precondition for the precise estimation of velocity and range of the target. The paper, through analyzing the forming of the amplitude spectrum of the echo, proposed a new method using quadratic curve fitting for it. Simulation proved the effectiveness of the method.
出处
《雷达与对抗》
2007年第1期33-35,51,共4页
Radar & ECM
