Design of time difference of arrival estimation system based on fast cross correlation

A time difference of arrival (TDOA) estimation system based on fast cross correlation is introduced in this paper. The system takes ADS8365, FPGA and DSP as the core devices to implement multichannel synchronous data acquisition and real time data processing. Comparison between cross correlation and...

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Bibliographic Details
Published in2010 2nd International Conference on Future Computer and Communication Vol. 2; pp. V2-464 - V2-466
Main Authors Hongcheng Yan, Wenyi Liu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2010
Subjects
cross correlation
Data acquisition
Data processing
Delay effects
Delay estimation
Digital signal processing
Equations
fast cross correlation
Field programmable gate arrays
Monitoring
Real time systems
Time difference of arrival
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Summary:A time difference of arrival (TDOA) estimation system based on fast cross correlation is introduced in this paper. The system takes ADS8365, FPGA and DSP as the core devices to implement multichannel synchronous data acquisition and real time data processing. Comparison between cross correlation and fast cross correlation in aspects of the principle and time complexity is also discussed. Experimental results show that the performance of fast cross correlation is 4 times and 13 times better than cross correlation in simulation and actual hardware test, respectively. Finally, performance of time difference of arrival estimation is given which meets the requirements.
ISBN:9781424458219
1424458218
DOI:10.1109/ICFCC.2010.5497484