Journal of Intelligent Computing and MathematicsOpen Access

Journal of Intelligent Computing and Mathematics[JICM] is an international peer-reviewed journal that publishes original and high-quality research papers in all related areas. All papers published will be open access to all readers. To build a platform for scientific research and academic exchange for scholars, focusing on the development and research, introducing worldwide research, theory and practice, and promoting international exchanges.

ISSN: N/A (Print)
Frequency: Bimonthly
ISSN: 2771-9952 (Online)
Website: https://doi.org/10.55571/jicm
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A Radiation Source Positioning System Based on GEO Satellites TDOA/FDOA Measurements

DOI: https://doi.org/10.55571/jicm.2024.02031
Authors: Yu-Jia Zeng, Xuan Cui, Yu-Qie Qiu, Hong-Kun Chen, Hai-Yan Zhang,Zhong-Yuan Chen
Affiliation:
1Unit 91497, Ningbo, Zhejiang, China
Unit 92192, Ningbo, Zhejiang, China
Unit 92118, Zhoushan, Zhejiang, China
Electronic Countermeasures Academy National University of Defense Technology, Hefei, Anhui, China
Information: Publication Date: April 26, 2024
Abstract: Traditional passive satellite positioning systems are facing problems such as construction difficulty, high operation and maintenance costs, and positioning range limits caused by quantity of launched satellites, due to gradually scarce earth’s orbit resources. Therefore, a radiation source positioning system design scheme based on quilted GEO communication satellites is proposed to meet with those problems. The proposed positioning system is able to intelligently choose one of three modes (three-satellites TDOA mode, dual-satellites FDOA/TDOA mode, or single-satellite mode), on the basis of searching satellites database, to position unknown radiation source. The positioning result is corrected using a known reference radiation station. To improve signal detection performance, a technology of co-channel interference cancellation is proposed when unknown radiation source signal forwarded by neighboring satellite is interference badly by its communication signal. Results of emulation shows, the proposed system can effectively locate unknown radiation sources within a range of 1000 kilometers, its positioning accuracy can reach 10 kilometers.
Keywords: Satellite positioning system; TDOA/FDOA; Co-channel interference cancellation; Positioning accuracy
Cite This Article:Zeng Y.J., Cui X, etc. (2024). A Radiation Source Positioning System Based on GEO Satellites TDOA/FDOA Measurements. Journal of Intelligent Computing and Mathematics, Vol.3, No.2, pp 103-111. https://doi.org/10.55571/jicm.2024.02031