| 摘要: |
| 在无源时差定位技术中，定位算法和布站形式的选择直接影响着无源定位方案能否
顺利应用于实际工程并满足工程需求。通过对常用定位算法的研究分析，选择了伪逆法和总
体最小二乘算法为求解方法，同时选择了有利于工程实现的五站主站升高的布站方法。五站
定位选择总体最小二乘算法求解，同时对4个辅站进行分组并用伪逆法求解，最后对所有定
位结果进行融合，从而解决了四站定位的无解及模糊问题，并提高了定位精度和稳定度，真
实数据处理验证了其可行性及有效性。 |
| 关键词: 无源时差定位 五站定位 伪逆法 总体最小二乘算法 相对距
离 支持
度函数 数据融合 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目(60972160) |
|
| Passive TDOA location based on data weighted fusion of five stations |
| TANG Xiao-ming,WANG Zhen-jie,ZHANG Tao |
| () |
| Abstract: |
| In the passive location technology based on the TDOA（Time Difference of Arrival
）, the choice to lo
cation algorithm and form of distribution stations directly determines whether t
he passive TDOAbased location technology can meet the requirements of real app
l
ication successfully. Pseudoinverse method and the total leastsquares algori
th
m are selected to solve the value of passive location through analysis of the co
mmonly used passive algorithm. At the same time, the form of distribution statio
n
s that can be easily achieved in project is chosen in which the five stations ar
e used and the
main station is uplifted. The total leastsquares algorithm is selected in the
c
ase of five stations, while the four auxiliary stations are grouped and used to
get the target position by the pseudoinverse method.Finally, all the results
a
bout the target position are fused to solve the problem of ambiguous location an
d nonsolution caused by fourstation location, and to improve position accura
cy
and stability. The feasibility and effectiveness of the method are verified by
real data processing. |
| Key words: passive TDOA location five-station location pseudo inverse method total least squares algorith
m relative distance support threshold function data fusion |
《电讯技术》编辑部 