Taylor-series Technique for Source Localization using AoAs in the Presence of Sensor Location Errors

2006 ◽  
Author(s):  
Xiaoning Lu ◽  
K.C. Ho
Keyword(s):  
Source Localization ◽  
Taylor Series ◽  
Sensor Location ◽  
Location Errors ◽  
Series Technique

scholarly journals A Bias Compensation Method for Distributed Moving Source Localization Using TDOA and FDOA with Sensor Location Errors

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3747 ◽  
Author(s):  
Zhixin Liu ◽  
Rui Wang ◽  
Yongjun Zhao
Keyword(s):  
Source Localization ◽  
Likelihood Estimation ◽  
Negative Influence ◽  
Location Estimation ◽  
Compensation Method ◽  
Sensor Location ◽  
Theoretical Derivation ◽  
Localization Accuracy ◽  
Location Errors ◽  
Bias Compensation

Current bias compensation methods for distributed localization consider the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements noise, but ignore the negative influence by the sensor location uncertainties on source localization accuracy. Therefore, a new bias compensation method for distributed localization is proposed to improve the localization accuracy in this paper. This paper derives the theoretical bias of maximum likelihood estimation when the sensor location errors and positioning measurements noise both exist. Using the rough estimate result by MLE to subtract the theoretical bias can obtain a more accurate source location estimation. Theoretical analysis and simulation results indicate that the theoretical bias derived in this paper matches well with the actual bias in moderate noise level so that it can prove the correctness of the theoretical derivation. Furthermore, after bias compensation, the estimate accuracy of the proposed method achieves a certain improvement compared with existing methods.

scholarly journals Doppler Frequency Shift Based Source Localization in Presence of Sensor Location Errors

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 59752-59760 ◽  
Author(s):  
Lijuan Deng ◽  
Ping Wei ◽  
Zhan Zhang ◽  
Huaguo Zhang
Keyword(s):  
Frequency Shift ◽  
Source Localization ◽  
Doppler Frequency ◽  
Doppler Frequency Shift ◽  
Sensor Location ◽  
Location Errors
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