【摘要】 给出了星载雷达高度计OCOG跟踪算法的使用步骤 ,明确指出该算法的特点是不仅考虑回波前沿部分 ,还考虑偏离天底点较远位置的回波拖尾部分 .通过与常规跟踪算法WSG进行仿真比较 ,显示了该算法产生的距离误差信号具有更宽泛的线性范围 ,能够保证回波前沿锁定在观测窗内 ,得到的等效信噪比更大 ,而均方根误差又能小得多 ,是一种鲁棒性良好的跟踪算法 .更多还原

【Abstract】 The application process of OCOG (Offset Center Of Gravity) algorithm functioned to achieve the task under high precision on the current spaceborne altimeters was provided and its character was indicated. The whole return waveform and the leading edge as the conventional tracking algorithm were considered. Its performance was contrasted with that of the other tracking algorithm, WSG (Wave Splitting Gate), by the simulation research. It is obvious that the error signal obtained by OCOG algorithm possesses wider linear range that ensures the waveform leading edge locked in the observation window. These results show that the algorithm is a tracking algorithm with excellent robust performance.更多还原