A Moving Source Localization Method for Distributed Passive Sensor Using TDOA and FDOA Measurements
Joint Authors
Zhao, Yongjun
Liu, Chengcheng
Liu, Zhixin
Hu, Dexiu
Source
International Journal of Antennas and Propagation
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-04-18
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The conventional moving source localization methods are based on centralized sensors.
This paper presents a moving source localization method for distributed passive sensors using TDOA and FDOA measurements.
The novel method firstly uses the steepest descent algorithm to obtain a proper initial value of source position and velocity.
Then, the coarse location estimation is obtained by maximum likelihood estimation (MLE).
Finally, more accurate location estimation is achieved by subtracting theoretical bias, which is approximated by the actual bias using the estimated source location and noisy data measurement.
Both theoretical analysis and simulations show that the theoretical bias always meets the actual bias when the noise level is small, and the proposed method can reduce the bias effectively while keeping the same root mean square error (RMSE) with the original MLE and Taylor-series method.
Meanwhile, it is less sensitive to the initial guess and attains the CRLB under Gaussian TDOA and FDOA noise at a moderate noise level before the thresholding effect occurs.
American Psychological Association (APA)
Liu, Zhixin& Zhao, Yongjun& Hu, Dexiu& Liu, Chengcheng. 2016. A Moving Source Localization Method for Distributed Passive Sensor Using TDOA and FDOA Measurements. International Journal of Antennas and Propagation،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1105340
Modern Language Association (MLA)
Liu, Zhixin…[et al.]. A Moving Source Localization Method for Distributed Passive Sensor Using TDOA and FDOA Measurements. International Journal of Antennas and Propagation No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1105340
American Medical Association (AMA)
Liu, Zhixin& Zhao, Yongjun& Hu, Dexiu& Liu, Chengcheng. A Moving Source Localization Method for Distributed Passive Sensor Using TDOA and FDOA Measurements. International Journal of Antennas and Propagation. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1105340
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1105340