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中文摘要：
阐述了利用波达方位角及其变化率对地面运动辐射源进行无源定位的原理,通过Jacobi矩阵推导出可观测性表达式,讨论了不同相对运动状态下的可观测条件。提出了融入波达方位角变化率信息的MGEKF(修正增益的扩展卡尔曼滤波)算法,并通过仿真与只利用方位角信息的MGEKF算法以及经典的EKF(卡尔曼滤波)算法进行了比较。
英文摘要：
The theory of passive location to moving emitter on the ground using DOA(direction of arrival) and its rate of change are described.Expression of observability is obtained by Jacobi matrix and conditions of observability under different relative motion states are discussed.A location algorithm which involves DOA and its rate of change based on MGEKF(modified gain extended Kalman filter) are put forward,and comparisons with the location algorithm only using DOA and other classic algorithms EKF are also given...
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Decoupled 2D direction of arrival estimation using compact uniform circular arrays in the presence o
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