CAJ | 학술논문

针对传统的弹道目标平动补偿方法不适用于时间距离像发生消隐的情况，该文提出了一种基于断续微距离变化曲线的弹道目标平动精补偿方法。建立了弹道中段目标宽带回波模型，推导了散射中心微距离变化曲线的理论公式，分析了弹道目标时间距离像特征，通过提取时间距离像骨架线分离出各散射中心微距离变化曲线，在此基础上提出了一种进动频率和平动参数联合估计的新方法，并推导了各参数估计的克拉美罗界，对参数估计性能进行了分析。仿真实验验证了该方法的有效性。
침대전통적탄도목표평동보상방법불괄용우시간거리상발생소은적정황，해문제출료일충기우단속미거리변화곡선적탄도목표평동정보상방법。건립료탄도중단목표관대회파모형，추도료산사중심미거리변화곡선적이론공식，분석료탄도목표시간거리상특정，통과제취시간거리상골가선분리출각산사중심미거리변화곡선，재차기출상제출료일충진동빈솔화평동삼수연합고계적신방법，병추도료각삼수고계적극랍미라계，대삼수고계성능진행료분석。방진실험험증료해방법적유효성。
In allusion to the problem that the traditional translational motion compensation methods are not suitable for the case of time-range profile blanking,a novel translational motion compensation method is proposed based on intermittent micro-range curve of ballistic target.The broadband echo model of the ballis-tic target in midcourse is established,the theoretical formula of intermittent micro-range curve is derived and the characteristics of ballistic target time-range profile are analyzed.Time-range profile skeleton lines are extracted and intermittent micro-range curve of scattering centers are separated.Based on this,a new method is put forward to estimate the precession frequency and the translational parameter simultaneously,and the Cramer-Rao Bound(CRB)of the parameter estimation is derived to analyze its performance.The effective-ness of the proposed method is verified by simulation results at last.