Radio-interferometric tracking using fault-tolerant phase unwrapping. (9th March 2016)

• Record Type: Journal Article
• Authors: Zachár, Gergely; Simon, Gyula
• Is Part Of: Measurement science & technology. Volume 27:Number 4(2016:Apr.)
• Publication Date: 2016-03-09
• Subjects: radio interferometry -- phase measurement -- phase estimation -- phase noise -- adaptive signal processing -- sensor fusion -- cost function; Physical measurements -- Periodicals; Scientific apparatus and instruments -- Periodicals; Equipment and Supplies -- Periodicals; Science -- instrumentation -- Periodicals; Technology -- instrumentation -- Periodicals; Mesures physiques -- Périodiques; Physical measurements; Scientific apparatus and instruments; Periodicals; 502.87
• DOI: 10.1088/0957-0233/27/4/045106
• Languages: English
• ISSNs: 0957-0233

Abstract

Abstract: A novel radio-interferometric measurement method for tracking applications is proposed. Fixed radio transceiver nodes are used to generate interferometric signals, allowing the tracking of a moving object equipped with a radio receiver. Low-frequency phase measurements of the interferometric signals are processed by the proposed simultaneous phase unwrapping algorithm, and then the real-time position estimates are calculated. The performance of the tracking system is analyzed by simulations and real measurements, indicating that the proposed method tolerates well substantial measurement phase noise and even sporadic large measurement errors.