基于高速目标宽带线性调频回波模型,推导了高速目标的去斜回波理论表达式并进行了定性分析;在分析去斜回波表达式中速度项影响的基础上,给出一种工程实用化的速度补偿方法,该方法具有计算量小、稳健有效的特点;利用信息熵和归一化方差评估速度对一维距离像的畸变影响,并给出该速度补偿技术对雷达测速的精度要求;最后,通过仿真验证了结论的正确性和有效性。

Based on wideband linear frequency modulation waveforms model for high velocity target, the theoretic expression of high velocity target echo is obtained and the qualitative analysis is given. After analyzing the velocity influence, a high efficiency and practical velocity compensation method is presented. The method is not only valid and robust, but also needs less computing cost. In order to evaluate the compensation effect, information entropy and normalized square deviation are used. The accuracy requirement for compensation is also presented. Finally, the simulated data demonstrate the validity of the proposed method.

TN957