论文部分内容阅读
解相位模糊问题是干涉ＳＡＲ成像处理中最关键的问题之一，它直接影响成像高度的精度。文中结合递推估计方法，给出了一种解相位模糊方法。其过程是根据给定的初始相位数据或邻近的已解模糊的相位值通过递推估计来获取相位估值，再经过可信度的检测来保证相位估值的可靠性。模拟实验后的实验结果表明该方法是有效的，并它成功地恢复了相位所丢失的２ｎ 分量，其相位值与模拟的真实值比较，相对误差也很小。
The phase ambiguity problem is one of the most critical problems in SAR imaging processing, which directly affects the accuracy of the imaging height. In this paper, a recursive estimation method is given and a phase ambiguity method is given. The process is based on the given initial phase data or adjacent to the ambiguous phase value through recursive estimation to obtain the phase estimate, and then through the credibility of the test to ensure the reliability of the phase estimate. Experimental results show that this method is effective, and it successfully restored the phase loss of 2n component, the phase value of the simulation compared with the real value, the relative error is small.