Analysis of Doppler effect on the pulse compression of different codes emitted by an ultrasonic LPS

This work analyses the effect of the receiver movement on the detection by pulse compression of different families of codes characterizing the emissions of an ultrasonic local positioning system. Three families of codes have been compared: Kasami, Complementary Sets of Sequences and Loosely Synchron...

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Published in:Sensors (Basel, Switzerland) Switzerland), 2011-11, Vol.11 (11), p.10765-10784
Main Authors: Paredes, José A, Aguilera, Teodoro, Alvarez, Fernando J, Lozano, Jesús, Morera, Jorge
Format: Article
Language:English
Subjects:
Autocorrelation
complementary set of sequences
Doppler effect
doppler shift
Emittance
Filtering
kasami sequences
loosely synchronous sequences
Pulse compression
Receivers
Sensors
Sliders
Synchronous
ultrasonic LPS
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cited_by cdi_FETCH-LOGICAL-c570t-4ba664e031f9936bed3feb3aa7a4db045220f8ebb8304ff09b7759d670f985653
cites cdi_FETCH-LOGICAL-c570t-4ba664e031f9936bed3feb3aa7a4db045220f8ebb8304ff09b7759d670f985653
container_end_page 10784
container_issue 11
container_start_page 10765
container_title Sensors (Basel, Switzerland)
container_volume 11
creator Paredes, José A
Aguilera, Teodoro
Alvarez, Fernando J
Lozano, Jesús
Morera, Jorge
description This work analyses the effect of the receiver movement on the detection by pulse compression of different families of codes characterizing the emissions of an ultrasonic local positioning system. Three families of codes have been compared: Kasami, Complementary Sets of Sequences and Loosely Synchronous, considering in all cases three different lengths close to 64, 256 and 1,024 bits. This comparison is first carried out by using a system model in order to obtain a set of results that are then experimentally validated with the help of an electric slider that provides radial speeds up to 2 m/s. The performance of the codes under analysis has been characterized by means of the auto-correlation and cross-correlation bounds. The results derived from this study should be of interest to anyone performing matched filtering of ultrasonic signals with a moving emitter/receiver.
doi_str_mv 10.3390/s111110765
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subjects Autocorrelation
complementary set of sequences
Doppler effect
doppler shift
Emittance
Filtering
kasami sequences
loosely synchronous sequences
Pulse compression
Receivers
Sensors
Sliders
Synchronous
ultrasonic LPS
title Analysis of Doppler effect on the pulse compression of different codes emitted by an ultrasonic LPS
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