• 学术论文 •

### 基于目标指示的两坐标警戒雷达目标高度补偿状态估计

1. 海军航空工程学院信息融合研究所, 山东烟台 264001
• 收稿日期:2012-05-23 修回日期:2013-10-27 出版日期:2015-03-25
• 通讯作者:
• 崔亚奇
• 作者简介:
• 熊 伟 男,1977年出生,海军航空工程学院副教授,从事雷达数据处理、雷达组网方面的研究工作.何 友 男,1956年出生,海军航空工程学院教授,从事雷达数据处理、雷达组网、战场模拟等方面的研究工作.
• 基金资助:
• 国家自然科学基金重点项目 (No.61032001)

### Height Compensation for 3-D Target State Estimation Using 2-D Warning Radar Based on Target Indication

CUI Ya-qi, XIONG Wei, HE You

1. Research Institute of Information Fusion, Naval Aeronautical and Astronautical University, Yantai, Shandong 264001, China
• Received:2012-05-23 Revised:2013-10-27 Online:2015-03-25 Published:2015-03-25

Abstract:

There are some shortcomings in the existing target height compensation algorithms, such as unreasonable model assumptions and unstable application effect.To avoid these defects, the problem of tracking the aerial target in 3-D space with a 2-D radar was restudied under the assumption that the target flights at a constant speed and a fixed altitude and the radar can obtain the indication information of the target from other collaborative detect units.First, on the basis of the transformation relation between different coordinates, an exact formula of the target height was deduced.Then utilizing identical transformation and reasonable approximations, an approximate estimation formula of the target height was derived.And the error in the formula was calculated using absolute value inequality and Cauchy-Schwarz inequality.At last, combining the original measurement equation of the 2-D radar with the target height estimation equation and using extended Kalman filter, the target space state was estimated.The simulation result shows the proposed algorithm can effectively compensate the target height information and obtain the stable and reliable estimation of the target space state, which can be used in the actual projects as the effective and perfect method for the target space state estimate problem of the 2-D radar.