CAJ | 학술논문

相位编码信号具有理想的接近图钉型的模糊函数,而在脉冲压缩处理中存在多普勒失配问题.本文在考虑脉内多普勒频移的情形下,建立了一种新的雷达测速-测距模型,并从二维图像重建的角度出发,推导了其多普勒补偿算法.理论分析和仿真试验表明:在考虑速度模糊和距离徙动的情况下,该方法能有效地解决因多普勒频移造成的失谐,得到接近理想情形的压缩效果.
상위편마신호구유이상적접근도정형적모호함수,이재맥충압축처리중존재다보륵실배문제.본문재고필맥내다보륵빈이적정형하,건립료일충신적뢰체측속-측거모형,병종이유도상중건적각도출발,추도료기다보륵보상산법.이론분석화방진시험표명:재고필속도모호화거리사동적정황하,해방법능유효지해결인다보륵빈이조성적실해,득도접근이상정형적압축효과.
Phase-coded signals suffer from Doppler mismatch in pulse compression due to the characteristics of the ideal thumbtack ambiguity function. In this paper, a novel model of measuring velocity-and-range and the corresponding Doppler compensation algorithm from the perspective of 2D image reconstruction are described considering of the intra-pulse Doppler. Simulation shows that the proposed method solves the Doppler-mismatch problem and obtains the satisfactory compression result when velocity ambiguity and range migration are taken into account.