CAJ | 학술논문

微弱目标的检测对雷达系统和检测方法提出很高的要求。首先采用速度检索和相位检索的方式,优化了基于相参积累的检测前跟踪算法;其次建立了简单的回波信号模型,分析了该算法的基本原理,探讨了该算法在当前条件下的可行性和局限性。实验仿真了目标幅度在帧间非起伏情况下目标的航迹规划,并且对其作了性能分析。实验表明,建立在距离-多普勒坐标系下的相参积累的算法,减少了搜索量和计算量,增加了信噪比的同时,取得了很好的航迹效果。
미약목표적검측대뢰체계통화검측방법제출흔고적요구。수선채용속도검색화상위검색적방식,우화료기우상삼적루적검측전근종산법;기차건립료간단적회파신호모형,분석료해산법적기본원리,탐토료해산법재당전조건하적가행성화국한성。실험방진료목표폭도재정간비기복정황하목표적항적규화,병차대기작료성능분석。실험표명,건립재거리-다보륵좌표계하적상삼적루적산법,감소료수색량화계산량,증가료신조비적동시,취득료흔호적항적효과。
The weak target detection made a very high demand on radar system and detection methods.The Track-Before-Detect（TBD） algorithm based on coherent integration is optimized by using speed-scanning and phase-scanning method.A simple target echo signal model is established,and the basic principles of the algorithm are analyzed.The feasibility and limitations of the algorithm in the current conditions are discussed.The target route planning is simulated,and the performance analysis is made.Experimental results show that the algorithm based on the coherent integration in the range-Doppler coordinate can reduce the amount of search volume and calculation,increase Signal Noise Ratio（SNR） and achieve good track results.