The demand of autofocus for high resolution real time synthetic aperture radar ( sar ) is very high 摘要高分辨率机载合成孔径雷达实时成像对自聚焦的要求非常高。
Therefore , self - focusing is of very important significance , both theoretically and practically 所以，研究自聚焦无论在理论上还是实际应用上都具有十分重要的意义。
The processing results of real data show that the effects processed by cma and mec is equivalent 实测数据结果显示，对比度最大化与最小熵准则自聚焦的视觉效果基本相同。
Both the imaging algorithm and autofocus algorithm are basically applied in practice , and desired outcome is obtained 将成像算法和自聚焦算法在对实际数据的成像中加以基本应用，得到了满意的结果。
Simulation and experiment on basic principle , imaging algorithms , auto - focusing techniques and bathymetry are given in chapter five 理、成像算法、自聚焦运动补偿技术与合成孔径测深的仿真和实验结果。
2 . two kinds of autofocus algorithms are presented in chapter 4 , map - drift ( md ) and phase gradient autofocus ( pga ) 2 .讨论了常用的两种雷达自聚焦算法:子孔径相关( md )算法和相位梯度自聚焦( pga )算法。
This dissertation studies image formation algorithm , autofocusing technique and speckle reduction method on sar signal processing 本文就sar信号处理中有关成像算法、自聚焦技术及相干斑抑制方面的内容进行了研究。
The autofocus algorithm not only need enough precision and computational efficiency , but also need fitting low signal to clutter rate ( scr ) 自聚焦除了要有足够高的精度和高计算效率外，还要求能够适应信杂比较低的情况。
A modified shift - and - correlate ( sac ) autofocus algorithm is presented , which decrease the demand of scr and the algorithm is more robust 文中对频移相关算法进行了改进，大大降低了自聚焦对信杂比的要求，增强了算法的鲁棒性。
Therefore in icf laser driver design and construction , it is very important to study the physical principle of the self - focusing effect 因而理解并掌握自聚焦形成的物理规律，对于icf驱动器的设计与建造具有非常积极的意义。
