Title: Performance evaluation of IR-UWB detectors and fusion techniques for UWB transceiver platforms

Authors: Vijaya Yajnanarayana; Peter Händel

Addresses: Department of Signal Processing, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden ' Department of Signal Processing, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden

Abstract: In this paper, we analyse the performance of a multi-pulse impulse radio based ultra-wideband (IR-UWB) detector in an AWGN setting and provide different fusion strategies for fusing these detector outputs. To enable the transceiver to be used for multiple applications, the designers have different types of detectors such as energy detectors, amplitude detectors, etc., built in to a single transceiver architecture. In this paper, we derive the detection performance equation for commonly used detectors in terms of false alarm rate, shape of the pulse, and number of UWB pulses used in the detection and apply these in the fusion algorithms. We show that the performance can be improved by approximately 4 dB in terms of signal to noise ratio (SNR) for high probability of detection of a UWB signal (95%), by fusing decisions from multiple detector types compared to a standalone energy detector, in a practical scenario.

Keywords: ultra wideband; UWB; time of arrival; TOA; UWB ranging; Neyman-Pearson test; sensor networks.

DOI: 10.1504/IJUWBCS.2018.092426

International Journal of Ultra Wideband Communications and Systems, 2018 Vol.3 No.4, pp.177 - 191

Received: 20 Jun 2016
Accepted: 20 Sep 2016
Published online: 19 Jun 2018 *

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