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A new TDOA algorithm based on Taylor series expansion
in cellular networks
- ZHANG Lingwen, TAN Zhenhui
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State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University
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| Published |
| 05 Mar 2008 |
| Issue Date |
| 05 Mar 2008 |
Abstract
Time difference of arrival (TDOA) is the positioning technique with the most potential in cellular mobile telecommunication systems. The Taylor series expansion method has been widely used in solving nonlinear equations for its high accuracy and good robustness. However, the performance of the Taylor’s method depends highly on the initial estimation. Therefore, one new algorithm, hybrid optimizing algorithm (HOA) was proposed, which combines the Taylor series expansion method with the steepest decent method. The steepest decent method features fast convergence at the initial iteration and small computation complexity. HOA takes great advantage of both methods. Simulation results show that HOA achieves better performance on positioning accuracy and efficiency.
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ZHANG Lingwen, TAN Zhenhui.
A new TDOA algorithm based on Taylor series expansion
in cellular networks. Front. Electr. Electron. Eng., 2008, 3(1): 40‒43 https://doi.org/10.1007/s11460-008-0018-2
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