CAJ | 학술논문

地面雷达低空探测时可采用PD体制，以获得准确的目标速度信息和良好的杂波抑制效果。考虑避免过大的距离模糊带来的工程实现上的难题，宜采用MPRF-PD体制。此种雷达有距离模糊和速度模糊这2种模糊特性需解算。对此，基于传统数论，结合PD雷达的测频特点和硬件实现要求，重点提出一种“距离-频率”二维联合解模糊算法应用于雷达搜索工作模式，同时提出一种“同模糊度法”应用于雷达跟踪工作模式。该算法可显著减少因距离折叠带来的“仙波”虚警，已应用于在制雷达。
지면뢰체저공탐측시가채용PD체제，이획득준학적목표속도신식화량호적잡파억제효과。고필피면과대적거리모호대래적공정실현상적난제，의채용MPRF-PD체제。차충뢰체유거리모호화속도모호저2충모호특성수해산。대차，기우전통수론，결합PD뢰체적측빈특점화경건실현요구，중점제출일충“거리-빈솔”이유연합해모호산법응용우뢰체수색공작모식，동시제출일충“동모호도법”응용우뢰체근종공작모식。해산법가현저감소인거리절첩대래적“선파”허경，이응용우재제뢰체。
To obtain accurate target speed and suppress clutter effectively,pulse-Doppler ( PD) can be applied in ground-based radar to detect low-altitude targets.Furthermore,to avoid excessive range ambiguity,MPRF-PD is recommended.The key point of MPRF-PD signal processing is to solve ambiguity in both range and velocity dimensions. Based on traditional number theory and focused on hardware implementation feasibility,the paper proposes a range-frequency algorithm for use in radar search mode,and a homo-ambiguity method for use in radar track mode.In this way,false alarms caused by “ghosting” can be eliminated.The algorithm has already been used in current radars.