基于遗传算法的星载InSAR多基线编队构形优化设计  

Multi-baseline Formation Configuration Optimization of Spaceborne InSAR System Based on Genetic Algorithm

作　　者：李洁[1] 黄海风[2] 梁甸农[2] 

机构地区：[1]海军装备研究院,北京100161 [2]国防科技大学电子科学与工程学院,长沙410073

出　　处：《电讯技术》2010年第2期10-15,共6页Telecommunication Engineering

摘　　要：在多基线干涉合成孔径雷达(InSAR)系统设计中,多基线优化是实现高精度测高任务的前提和保证。采用遗传算法优化多根基线,以卫星的六个轨道根数为设计变量,从相对运动方程出发以相干性为约束推导约束条件。同时采用基于定位方程的高精度模型,将多基线测高误差的倒数作为优化算法的目标函数。仿真验证了优化算法的正确性,同时证明通过此方法优化,能够提高多基线星载InSAR系统的测高精度。In multi - baseline InSAR system design, multi - baseline optimization is the precondition and assurance of the height- measure mission. Genetic algorithm（GA） is used to optimize the formation, with the satellite orbital parameters as the design variables. Restrictions are derived from relative movement model, in which relativity is also concerned. Height accuracy is analyzed from multi - baseline location e- quations directly and height accuracy model is built. The derived height error is used as evaluation of the optimization algorithm. Simulation results demonstrate the validity of the optimal method.

关 键 词：干涉合成孔径雷达 多基线编队 遗传算法 测高误差 优化设计 

分 类 号：TN953[电子电信—信号与信息处理] V47[电子电信—信息与通信工程]