摘要
本文在分析了线性调频信号距离—多普勒耦合原理的基础上,提出了一种高耦合系数条件下径向速度估计的新方法.该方法利用雷达波形参数切换带来的距离信息,通过所建立的匀速模型和匀加速模型,在滤波器起始之前对径向速度进行了有效的估计,解决了高耦合系数条件下多普勒耦合测距误差修正、数据关联以及最佳滤波器起始的问题.对导弹防御雷达的仿真验证了该方法的有效性.
On the basis of the principle of range-Doppler coupling of hnear frequency modulation signal, a new method of radial velocity estimation for high coupling coefficient is presented. Using range information brought by radar waveform switching, the radial velocity is efficiently estimated through a uniform velocity model and a uniform acceleration model estabhshed in the method, which solves such problems as range measurement bias modification caused by range-Doppler couphng,data association and optimal Kalman Filter construction in the case of high couphng coefficient. The simulafon result of missile defense radar verifies the efficiency.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2005年第9期1571-1575,共5页
Acta Electronica Sinica
基金
国防预研基金项目(No.41303517)
国防科技大学基础研究计划项目资助(No.JC01-04-007)
关键词
线性调频
距离-多普勒耦合
径向速度
波形切换
linear frequency modulation
range-Doppler coupling
radial velocity
waveform switch
