双基（机载）合成孔径雷达测高——比较没技术含量，因为用的方法是斜距差，没用相位差（还没研究出来），所以误差有点大。-Double-base (Airborne) synthetic aperture radar altimeter- not the technical content of comparison, because the methodology used is inclined away from the poor, no phase difference (not findin

差分法比较曲线的形状相似度，接着筛选出有用曲线求相位差，给了原始数据，可以直接运行-Difference Method for curve shape similarity, then filter out the demand curve useful in phase, to the raw data, can run