An Improved Algebraic Solution for TDOA Localization With Sensor Position Errors

作者：Liu, Yang^*; Guo, Fucheng; Yang, Le; Jiang, Wenli

来源：IEEE Communications Letters, 2015, 19(12): 2218-2221.

DOI：10.1109/LCOMM.2015.2486769

• Source localization
• time difference of arrival
• sensor position errors
• performance analysis

This letter proposes an improved version of the popular two-stage weighted least squares (TSWLS) algorithm for source localization using time difference of arrival (TDOA) measurements in the presence of sensor position errors. The new technique remains to be closed-form and approximately efficient as TSWLS. But it exhibits lower estimation bias and better robustness to increased noise over TSWLS via using a new Stage-2 processing, where the localization error of its Stage-1 is estimated and subtracted from the Stage-1 output to generate the final source position estimate. Simulations corroborate the theoretical developments.

• 出版日期2015-12
• 单位江南大学; 中国人民解放军国防科学技术大学