Title :
Design of time difference of arrival estimation system based on fast cross correlation
Author :
Yan, Hongcheng ; Liu, Wenyi
Author_Institution :
Nat. Key Lab. of Electron. Meas. Technol., North Univ. of China, Taiyuan, China
Abstract :
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.
Keywords :
data acquisition; field programmable gate arrays; signal processing; time-of-arrival estimation; wireless sensor networks; ADS8365; DSP; FPGA; TDOA; arrival estimation system; fast cross correlation; multichannel synchronous data acquisition; time data processing; time difference of arrival; wireless sensor networks; Data acquisition; Data processing; Delay effects; Delay estimation; Digital signal processing; Equations; Field programmable gate arrays; Monitoring; Real time systems; Time difference of arrival; Time difference of arrival; cross correlation; fast cross correlation;
Conference_Titel :
Future Computer and Communication (ICFCC), 2010 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-5821-9
DOI :
10.1109/ICFCC.2010.5497484
