| 基于静止、准静止双星TDOA／FDOA无源定位算法 |
| |
| 引用本文： | 盛卫东 邓新蒲 周一宇. 基于静止、准静止双星TDOA／FDOA无源定位算法[J]. 电子对抗, 2007, 0(1): 1-5 |
| |
| 作者姓名： | 盛卫东 邓新蒲 周一宇 |
| |
| 作者单位： | 国防科技大学电子科学与工程学院,长沙410073 |
| |
| 摘 要： | 针对由静止卫星、准静止卫星构成的无源定位系统，该文研究了利用到达时间差／到达频率差（TDOA／FDOA）联合对地球表面固定辐射源的无源定位算法。与迭代搜索法相比，该算法不需要初值，不用迭代运算，仅仅需要解4次多项式方程，因此该算法更有效。文中推导了定位方程的求解算法，分析了多项式方程的多根情况，并提出了相应的解决办法；最后进行了蒙特卡罗仿真，仿真结果表明该算法具有适应能力强、定位精度高的优点。
|
| 关 键 词： | 双星定位 无源定位 TDOA FDOA |
| 修稿时间： | 2006-10-10 |
TDOA/FDOA Passive Geo-location Algorithm of one Stationary Satellite and one Quasi-stationary Satellite |
| |
| Sheng Weidong, Deng Xinpu, Zhou Yiyu. TDOA/FDOA Passive Geo-location Algorithm of one Stationary Satellite and one Quasi-stationary Satellite[J]. Electronic Warfare, 2007, 0(1): 1-5 |
| |
| Authors: | Sheng Weidong Deng Xinpu Zhou Yiyu |
| |
| Affiliation: | School of Electronic Science and Engineering, NUDT, Changsha 410073, China |
| |
| Abstract: | Based on the passive geo-location system constructed of one stationary satellite and one quasi-stationary satellite, an algorithm to locate a stationary target on the earth surface by time difference of arrival/frequency difference of arrival (TDOA/FDOA) measurements is proposed in this paper. Compared to iterative searching algorithm, this algorithm needs no initial positions and no iterative operations, and only needs to resolve a 4th-order polynomial equation, thus it works more effectively. In this paper, a resolving algorithm of the locating equations is provided, the roots of the polynomial equation are analyzed, and the corresponding solving methods are provided. At last, a simulation is presented, the results show that this algorithm is adaptable and locating precision is high. |
| |
| Keywords: | 2-sattellite location Passive geo-location TDOA FDOA |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
