电子科技大学学报Issue(6)：834-837,4.DOI:10.3969/j.issn.1001-0548.2014.06.007
基于正性约束的测向交叉定位方法
A Positive Restriction Method Used in Crossing Location
摘要
Abstract
Traditional cross-location method uses the tangent of direction of arrival (DOA) as slope to obtain a least square solution by solving a linear equation. Generally, using the tangent of DOA as slope makes the direction indistinct in 180o. If the measurement error of the DOA is low, traditional cross-location method performs well, and the direction indistinct in 180o has little influence on the result of the algorithm. But once we deal with a large measurement error situation, the direction indistinct in 180o will import additional prominent error, which will have big influence on the precision of location. Therefore, this article proposes a new method which uses the sine and cosine of the DOAs to form the cross-location equations, subject to the constraint of the positive distance to find a solution. This method has no direction indistinct in 180o and improves the precision of the location result. The simulation result by the computer verified the fact that the new proposed method has a better location result than the traditional method under large measurement error.关键词
交叉定位/DOA估计/角度模糊/无源定位/正性约束Key words
cross-location/DOA estimation/indistinct in angle/passive location/positive restiction分类
信息技术与安全科学引用本文复制引用
沈晓峰,徐保根,邹继锋,万义和,汤四龙,杨万麟..基于正性约束的测向交叉定位方法[J].电子科技大学学报,2014,(6):834-837,4.基金项目
国家自然科学基金(61172140) （61172140）
