摘要
随着星载合成孔径雷达(SAR)在军事及民用领域的广泛应用,对于星载SAR的对抗也变得越来越重要。文章在对其截获信号及工作模式进行具体分析的基础上,给出星载SAR数学模型,通过对其数学模型的分析,提出了星载SAR工作模式反演的方法,并采用了实数编码遗传算法来解决常规搜索算法的速度问题,提出了多站测量方法来进一步提高算法的可靠性,从而较精确地反演出星载SAR的观测模式及观测范围。计算机仿真结果证明了该算法的正确性和有效性。
With the wide use of spaceborne synthetic aperture radar（SAR） in military and civilian fields, countermeas- ure of spaceborne SAR became increasingly important. On the basis of the analysis of radar signal and operation mode, the geometric space model is given of spaceborne SAR, a spaeeborne SAR operation inversion method is proposed based on anal- ysis of its mathematical model. A Real Code Genetic Algorithms （RCGA） is used to solve the speed problem of the regular search algorithm, and multi-station measurement methods are proposed to further improve the reliability of the algorithm. Thus the observation area and operation mode could be calculated more accurately. Simulation results prove the correctness and effectiveness of the algorithm.
出处
《空间电子技术》
2013年第2期90-94,共5页
Space Electronic Technology
关键词
遗传算法
星载SAR
区域反演
坐标转换
Genetic algorithm
Spaceborne SAR
Region inversion
Coordinate transformation
