一种改进的相关干涉仪测向算法  

An Improved Algorithm of Direction Finding Using Correlative Interferometer

作　　者：龚军涛 黄光明 高由兵 

机构地区：[1]电子信息控制重点实验室,成都610036

出　　处：《电子信息对抗技术》2016年第1期4-7,29,共5页Electronic Information Warfare Technology

摘　　要：针对多阵元相位干涉仪测向过程中的解模糊概率问题,在相位差误差条件下建立了解模糊概率与基线长度比之间的关系,给出一种相关干涉仪基线设计方法,并研究了相关干涉仪的解模糊条件;提出一种改进的相关干涉仪算法,缩小了相关干涉仪的取值范围,优化了相关函数,该方法最大程度地利用了干涉仪孔径尺寸,保证了测向精度,提升了运算速度,同时具有更强的解模糊稳定性。仿真试验表明,改进的相关干涉仪算法有效可行。For the direction finding（DF） problem about solving phase ambiguity in phase inter- ferometer array, a method about baseline design is given in the relationship between phase error and probobility, and the condition of solving phase ambiguity is studied. An improved algorithm of direction finding using correlative interferometer is proposed, reducing the range of the angle value and optimizing the cost function. The algorithm has the advantage of DF accuracy with maximum array aperture, speed computing and robustness. The proformance of the improved algo- rithm is effectively demonstrated by simulation.

关 键 词：干涉仪 相位解模糊 代价函数 测向 

分 类 号：TN971.1[电子电信—信号与信息处理]