Title :
Design considerations and performance of low-cost ultrasonic ranging system
Author :
Zivkovic, D.S. ; Markovic, B.R. ; Rakic, D. ; Tadic, S.
Author_Institution :
Bitgear Wireless Design Services d.o.o., Belgrade, Serbia
Abstract :
Numerous systems for reliable, low-cost, indoor, ultrasonic sensing have been demonstrated during the past few decades. Existing solutions span very low-cost transducers to high-grade equipment. This paper presents design details of a low-cost, single-tone, ranging system. A set of experimental results is included in order to evaluate consistency between ranging results obtained from receivers with various architectures. The effects of channel equalization and signal precoding evaluated show how these systems can deal with realistic reflectors.
Keywords :
equalisers; precoding; receivers; ultrasonic transducers; channel equalization effects; design considerations; high-grade equipment; low-cost single-tone ranging system; low-cost transducers; low-cost ultrasonic ranging system performance; realistic reflectors; receivers; reliable low-cost indoor ultrasonic sensing; signal precoding; Acoustics; Bandwidth; Baseband; Distance measurement; Receivers; Transducers; Ultrasonic variables measurement; CFAR; Cramer-Rao bounds; Tomlinson-Harashima pre-coder; indoor environments; time of arrival estimation; ultrasonic transducers;
Conference_Titel :
Positioning Navigation and Communication (WPNC), 2013 10th Workshop on
Conference_Location :
Dresden
Print_ISBN :
978-1-4673-6031-9
DOI :
10.1109/WPNC.2013.6533274
