摘要
利用LFM信号对空中目标进行一维距离成像时,目标的高速运动会导致成像模糊,需要进行运动补偿,针对一维距离像补偿中的多分量线性调频信号参数估计问题,对目标回波信号的特点进行了分析。采用一种自相关混频和瞬时测频的方法估计补偿信号的调频斜率,降低了已有参数估计算法的复杂性。仿真分析表明该算法是有效的,适合引信信号处理使用。
The LFM signal is often used to get the range will be out of focus because of the high speed of targets, profiles of air targets, however the range profile and then the compensation is needed. To solve the parameter estimating problem of multi-component LFM signals in the compensation, the reflect signals are analyzed, and an instantaneous frequency measurement algorithm is used to estimate the frequency modulation slope of compensation signal through autocorrelation frequency mixing, which reduces the complexity of foregone parameter estimation algorithm. Simulation result indicates that the algorithm is ac- tive and suitable for the signal processing in fuse.
出处
《战术导弹技术》
2013年第5期45-48,共4页
Tactical Missile Technology
