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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 the high-speed target wideband chirp-echo model, the theoretical expression of de-skew echo of high-speed target is derived and analyzed qualitatively. Based on the analysis of the influence of velocity term in the de-skew echo expression, This method has the characteristics of low computational complexity and robustness. Using information entropy and normalized variance to evaluate the effect of velocity on the distortion of one-dimensional range image, the accuracy of the velocity compensation technique for radar velocity measurement is given Finally, the correctness and validity of the conclusion are verified through simulation.