CAJ | 학술논문

针对高速机动目标在观察时间内通常跨越多个距离单元，使得目标检测时进行能量相关积累变得困难的问题，对大时宽高速机动目标雷达回波信号进行了建模，分析了拉伸效应、加速度等因素对匹配滤波的影响。鉴于传统速度补偿仅补偿了多普勒损失而对跨距离损失未能有效补偿，提出了一种预失配速度补偿的新方法，解决了距离跨越情况下相参积累检测问题。通过仿真和实际数据分析，验证了该方法的有效性。
침대고속궤동목표재관찰시간내통상과월다개거리단원，사득목표검측시진행능량상관적루변득곤난적문제，대대시관고속궤동목표뢰체회파신호진행료건모，분석료랍신효응、가속도등인소대필배려파적영향。감우전통속도보상부보상료다보륵손실이대과거리손실미능유효보상，제출료일충예실배속도보상적신방법，해결료거리과월정황하상삼적루검측문제。통과방진화실제수거분석，험증료해방법적유효성。
Considering that the high-velocity maneuvering targets go through several range cells during the period of observation, making it more difficult to carry out the energy correlation accumulation when detecting targets, this paper implements modeling of radar target echo signals of high-velocity maneuvering targets with large time-width, and analyzes the influences of time-scale effect, acceleration and other factors on matched filtering. And also considering that the conventional velocity compensation can only compensate Doppler loss rather than compensate effectively the cross-range loss, this paper proposes a new method of pre-mismatch velocity compensation, which gets over the issue of coherent accumulation in the case of cross-range. By simulation and its real data analysis, it is verified that this proposed method is of effectiveness.