论文部分内容阅读
为了能实时产生高质量的干涉条纹提出了一种新算法。算法采用了降采样与干涉多视处理相结合的技术、线性插值查表法、非线性近似的ECS自配准成像算法、实时干涉运补、相干系数快速计算以及快速干涉滤波方法,并对该算法实时产生干涉条纹的可行性进行了分析,给出了实现该算法的硬件结构。最后针对电子所X波段机载双天线InSAR数据,利用该算法产生了干涉条纹和相干系数图,证明了算法的有效性。
In order to produce high-quality interference fringes in real time, a new algorithm is proposed. The algorithm uses the combination of down-sampling and interference multi-view processing, linear interpolation look-up table method, ECS self-registration imaging algorithm based on nonlinear approximation, real-time interference compensation, fast calculation of coherence coefficient and fast interference filtering method. The feasibility of generating interference fringes in real time is analyzed and the hardware structure of the algorithm is given. Finally, according to the X-band InSAR data of X-band airborne dual antennae, the fringe pattern and coherence coefficient are generated by this algorithm, which proves the effectiveness of the algorithm.