摘要
主要研究如何在一个LFM脉冲信号中提取目标运动参数。首先建立了目标速度和加速度对LFM信号的调制规律模型,分析了回波信号一次项、二次项系数的比例关系,通过调整LFM信号参数来改变系数的比例关系,进而利用分数傅里叶变换估计目标运动参数信息。在仿真与分析中,通过实例对文章的理论推导进行验证,并探讨了在速度和加速度的多种组合条件下的参数估计效果。
The paper mainly discusses how to estimate target motion parameters based on a LFM pulse. The LFM signal modulation models of target speed and acceleration are firstly built, and then the proportional relationship between the first and second-order item coefficients of echo signals are analyzed. The proportional relationship between the coefficients is altered by adjusting the LFM signal parameters, and then the target motion parameters are estimated based on FRFT. .The paper＇s viewpoint is proven by examples of simulation and analysis, and the parameter estimation effects are discussed under the condition of different speed-acceleration combinations.
出处
《无线电工程》
2008年第11期16-18,共3页
Radio Engineering
基金
国家自然科学基金资助项目(60541001)
"泰山学者"建设工程专项经费资助
