摘要
由于多径信号的干扰,单脉冲比幅测角体制的雷达在对低空目标俯仰角测量时,会带来很大的误差。将传统的多目标分辨算法(C2算法)应用于某相控阵雷达系统低空目标偏轴跟踪中俯仰角的测量,文中给出某次实际飞行试验中的测量结果,并对测量结果进行修正,表明该算法具有比较优良的抗多径干扰性能,验证了该算法在低空多径环境下目标俯仰角测量的有效性和可实施性。
Tracking a low-altitude target in elevation is difficult when both direct and reflected radar returns enter main beam of the radar. Under such condition, a conventional monopulse radar is subjected to increased angle noise and bias error in elevation. By means of analysis based on the model of multipath reflection environment, we suggested a novel idea of using the traditional multi-target discrimination algorithm （ C^2 ） to estimate the elevation angle of the low-altitude target and applied it to a phased array radar system. Using the real data of a fly experiment we validated the method as effective and feasible for tracking the target in low-altitude and multipath environment.
出处
《现代雷达》
CSCD
北大核心
2007年第7期41-44,共4页
Modern Radar
关键词
低空/低角度目标测量
偏轴跟踪
C^2算法
low-altitude/low-angle target measurement
off-axis tracking
C^2 algorithm
