Measurement and positioning of moving array shape by IR-UWB

Hongkun He; Haoshan Shi

doi:10.1117/12.717143

24 October 2006 Measurement and positioning of moving array shape by IR-UWB

Hongkun He, Haoshan Shi

Proceedings Volume 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence; 63572N (2006) https://doi.org/10.1117/12.717143
Event: Sixth International Symposium on Instrumentation and Control Technology, 2006, Beijing, China

Abstract

Based on impulse radio ultra wide band (IR-UWB) technology, the measuring and positioning of moving array shape are discussed. Because there are no conditions of fixed receivers and clock synchronization in real outdoor or field surroundings, only choice is unusual asynchronous measurement method, therefore, the scheme of measuring and processing must be changed, though the current TOA (Time Of Arrival) method is used. The array shape and positions of moving objects are both required in the most situations. The direct approach is to increase the number of measuring point, and the positioning problem would be resolved by triangular surveying method. The solution is generic at first sight, but its sensitivity to time-of-arrival accuracy imposes the choice of impulse radio ultra wide band hard ware and soft ware in the very context. The algorithm scheme mitigates the impact of non-line of sight ranging errors on positioning accuracy without any additional protocol hook. More particularly, the realistic IR-UWB ranging error models we use take into account UWB channel effects, as well as relative clock drifts. By error analyzing and simulation under the proper operation model, results are provided to illustrate the relevance of such a solution.

Citation Download Citation

Hongkun He and Haoshan Shi "Measurement and positioning of moving array shape by IR-UWB", Proc. SPIE 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence, 63572N (24 October 2006); https://doi.org/10.1117/12.717143

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KEYWORDS

Clocks

Ranging

Error analysis

Receivers

Distance measurement

Time metrology

Crystals

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