运动噪声对相参积累影响的研究

Study on the effect of noise on motion coherent integration

即使已知目标的运动信息,无处不在的运动噪声仍会导致对运动目标回波进行相参积累时,无法获得信噪比的持续提高。本文利用加速度噪声模型下的匀速直线运动的运动方程,对运动噪声对相参积累获取增益的影响进行了分析,给出了该模型下的相参积累时间上限。

Even if the motion information of the target is known,ubiquitous motion noise will lead to the echo of a moving target is coherent accumulation time,unable to obtain continuous improvement in signal-to-noise ratio.In this paper,on motion noise of coherent accumulation gain gain is analyzed using the motion equation of the acceleration noise model of uniform motion in a straight line,gives the model of coherent accumulation time limit.