Measurement of the Ultrawideband Chaotic Signal Power for Wireless Ranging and Positioning

Ефремова, Е. В.; Kuzmin, L. V.

doi:10.1134/s1063785021050217

Cited by 1 publication

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References 14 publications

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“…Earlier, in a number of experimental studies, fundamental questions were considered about the advisability of UWB chaotic signals in the schemes based on measuring the power level [55,56] or the propagation time [57] of chaotic radio pulses. The systems based on chaotic radio pulses were shown to have a potential for positioning.…”

Section: Introductionmentioning

confidence: 99%

Measuring Received Signal Strength of UWB Chaotic Radio Pulses for Ranging and Positioning

Efremova,

Kuzmin,

Itskov

2023

Electronics

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The use of ultra-wideband (UWB) signals for local positioning is very attractive for practice, because such signals have the potential to provide centimeter precision. In this paper, we consider wireless ranging (distance measurement) and positioning, using one of the kinds of UWB signals, i.e., chaotic radio pulses, which are noise-like signals with no constant shape. The distance measurement is based on an assessment in the receiver of the power of UWB chaotic radio pulses emitted by the transmitter. A new method for estimating their power and its experimental implementation is proposed and described. Experimental layouts of the transmitter and receiver and the principles of their operation are described. To determine the main features of this method under real signal propagation conditions, full-scale indoor measurements were carried out, and statistical estimates of the accuracy were made. We present the results of experimental testing of the proposed approach for positioning the emitter relative to a system of anchors in an office space 6 × 6.5 m2 in the mode of measuring object coordinates on a line and on a plane. The mean absolute error (MAE) of distance measurement (1D) was 25 cm, and the root mean squared error (RMSE) was 39 cm. When positioning on a plane (2D), the MAE of coordinate estimation was 34 cm and the RMSE was 42 cm. The proposed distance measurement method is intended for use in wireless UWB transceivers used in wireless sensor networks.

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Section: Introductionmentioning

confidence: 99%