论文部分内容阅读
研究了频率步进高分辨率毫米波雷达一维距离像的成像方法，讨论了由于Ｉ／Ｑ正交相干解调通道不平衡对一维距离像成像的影响，提出了基于矩阵奇异值分解（ＳＶＤ）法分解出有用信号子空间，由此求取线性变换，对正交相干通道不平衡进行校正处理的方法，并利用目标散射点的回波模型进行了计算机仿真，其结果表明，该方法是有效的．
The imaging method of one-dimensional distance image of frequency-stepping high-resolution millimeter-wave radar is studied. The influence of I / Q quadrature coherent demodulation channel imbalance on one-dimensional distance image imaging is discussed. A new method based on matrix singular value decomposition SVD) is used to decompose the useful signal subspace to get the linear transform, to correct the imbalance of quadrature coherent channels. The computer simulation is carried out by using the echo model of the target scattering point. The results show that this method It is effective.