116 citations · 142 across the 11 of their papers we have counts for
4 papers · 1 filter
Multipath Error Correction in Radio Interferometric Positioning Systems
Cheng Zhang, Wangdong Qi, Li Wei +2
The radio interferometric positioning system (RIPS) is an accurate node localization method featuring a novel phase-based ranging process. Multipath is the limiting error source fo…
Closed-form, robust and accurate multi-frequency phase unwrapping: frequency design and algorithm
Li Wei, Wangdong Qi
A closed-form algorithm, named "concerto", is proposed for phase-based distance estimation in multi-frequency phase unwrapping (MFPU) system. The concerto method consists of three…
Performance of ML Range Estimator in Radio Interferometric Positioning Systems
Yue Zhang, Wangdong Qi, Guangxia Li +1
The radio interferometric positioning system (RIPS) is a novel positioning solution used in wireless sensor networks. This letter explores the ranging accuracy of RIPS in two confi…
Optimization in Multi-Frequency Interferometry Ranging: Theory and Experiment
Li Wei, Wangdong Qi
Multi-frequency interferometry (MFI) is well known as an accurate phase-based measurement scheme. The paper reveals the inherent relationship of the unambiguous measurement range (…