摘要
深入分析了测向系统的实质,得到了空间到达角与目标三维空间位置的关系,并融合双站的时差数据得到了目标辐射源空间位置所满足方程组。利用高斯噪声的线性特征,对测量数据进行一阶泰勒线性展开,并根据其联合概率分布密度完成了对目标三维空间坐标的求解,较好地消除了高斯型噪声的影响。
The essence of direction finding is analyzed by phase comparison approach, the relationship of AOA and target 3D location is got. By fusing TDOA and 3D AOAs of two stations, the location equations are found. Making use of the linear property of Gaussian noise, the Taylor series is used to expansion the measurement equation, and the location equations is achieved according to the joint probability distribution which could remove the affect of Ganssian noise.
出处
《电子信息对抗技术》
2013年第1期26-30,68,共6页
Electronic Information Warfare Technology
关键词
双站
三维空间定位
高斯噪声
概率密度分布
two stations
3D passive location
Gaussian noise
probability density distribution
