中文摘要：

发射信号的非线性严重影响了调频连续波（FMCW）雷达成像系统的距离分辨率。针对FMCW雷达成像中的非线性问题，在FMCW非线性信号模型的基础上，运用同态解卷积的估计方法与改进的残余视频相位（RVP）滤波处理，解决FMCW雷达成像中的非线性问题。通过仿真结果显示，成像算法经过非线性校正后，提高了目标的距离分辨率和成像质量。

英文摘要：

Nonlinearity in transmitted signal seriously affects the range resolution of the Frequency Modulated Continues Wave （FMCW） radar imaging system. In the light of nonlinearity of FMCW radar imaging,we have applied the evaluation method of homomorphic de- convolution and improved residual video phase （RVP） filtering processing to solve the nonlinear issue of FMCW radar imaging. Simulation result shows that the imaging algorithm after its nonlinear correction can improve range resolution and imaging quality of the target.