Paper Title:
Optimized Pseudorandom BASK Emission Sequences for Ultrasonic Multi-Life Location System
  Abstract

This paper addresses the performance of pseudorandom Binary Amplitude Shift Keying (BASK) emission sequences for an ultrasonic multi-life location system in rescue robot. To improve the performance of multi-life location system, the BASK modulation were used to construct the spread spectrum emission sequences for ultrasonic sensors. Correlation technique in the receiving circuit was used to de-spread. Good correlation characteristics, i.e., sharp autocorrelation and flat cross-correlation, can help eliminate crosstalk between multichannel ultrasonic sensors. To improve the echo signal correlation effect, genetic algorithm was applied to optimize pseudorandom m sequences. In simulated post-earthquake environment, experimental verification of ultrasonic multi-life location system consisting of eight-channel SensComp 600 series electrostatic sensors with optimized BASK emission sequences was carried out. The experimental results demonstrate that the ultrasonic multi-life location system with the proposed method can realize multi-life location simultaneously.

  Info
Periodical
Advanced Materials Research (Volumes 268-270)
Edited by
Feng Xiong
Pages
1850-1855
DOI
10.4028/www.scientific.net/AMR.268-270.1850
Citation
Z. J. Yao, T. Gao, H. R. Ma, C. S. Guo, "Optimized Pseudorandom BASK Emission Sequences for Ultrasonic Multi-Life Location System", Advanced Materials Research, Vols. 268-270, pp. 1850-1855, 2011
Online since
July 2011
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Price
$32.00
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