指挥信息系统与技术
指揮信息繫統與技術
지휘신식계통여기술
COMMAND INFORMATION SYSTEM AND TECHNOLOGY
2012年
6期
40-44
,共5页
朱栋%王寿峰%张宝健%章林
硃棟%王壽峰%張寶健%章林
주동%왕수봉%장보건%장림
测向算法%5阵元天线阵列%比相法
測嚮算法%5陣元天線陣列%比相法
측향산법%5진원천선진렬%비상법
direction-finding algorithm%pentagonal antenna array%phase comparison method
提出了一种基于比相法的5阵元天线阵列测向算法,并对该算法进行了误差仿真分析。仿真结果表明,该算法虽具有较高精度,但在特定的方位角范围内会引起较大误差。针对该缺点,采用了旋转参考阵元方法,使得该测向算法在全方位角范围内获得了均匀分布的误差估计值,其均方根误差小于0.1°。
提齣瞭一種基于比相法的5陣元天線陣列測嚮算法,併對該算法進行瞭誤差倣真分析。倣真結果錶明,該算法雖具有較高精度,但在特定的方位角範圍內會引起較大誤差。針對該缺點,採用瞭鏇轉參攷陣元方法,使得該測嚮算法在全方位角範圍內穫得瞭均勻分佈的誤差估計值,其均方根誤差小于0.1°。
제출료일충기우비상법적5진원천선진렬측향산법,병대해산법진행료오차방진분석。방진결과표명,해산법수구유교고정도,단재특정적방위각범위내회인기교대오차。침대해결점,채용료선전삼고진원방법,사득해측향산법재전방위각범위내획득료균균분포적오차고계치,기균방근오차소우0.1°。
A direction-finding algorithm is proposed based on the phase comparison method for the pentagonal antenna array and the error is analyzed by the numerical simulation. The simula- tion result shows that the algorithm has a high degree of accuracy but a rising error in the certain angular range. Aimed at the disadvantage, a method for rotating the reference error estimations are uniformly distributed in the whole angular range, and the error (RMSE) is less than 0. 1° by the direction-finding algorithm. unit is used, the root-mean-square