TY - GEN
T1 - Fast Fourier Transform Overlap Approach for Underwater Acoustic Positioning System
AU - Tan, Chee Sheng
AU - Mohd-Mokhtar, Rosmiwati
AU - Arshad, Mohd Rizal
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12
Y1 - 2018/12
N2 - Acoustic technology able to provide communication between the surface vessel to the underwater vehicle. It helps especially during underwater navigation, tracking, localization and target positioning. This paper proposes a positioning system by using Fast Fourier Transform (FFT) with overlap technique. The FFT overlap is used to estimate the location of underwater target. Digital signal processing (DSP) algorithms are utilized on this system for extracting the information of the signal. Time difference of arrival (TDOA) is computed by retrieving difference between max FFT overlap of 2 different receivers, and it is multiplied by a constant which varies with overlap percentage. The peak amplitude is determined by computing FFT with 100% overlap. The location of target is determined by using angle estimation technique. This approach is tested on shallow water to obtain the direction of target. Result shows significant performance from the proposed approach.
AB - Acoustic technology able to provide communication between the surface vessel to the underwater vehicle. It helps especially during underwater navigation, tracking, localization and target positioning. This paper proposes a positioning system by using Fast Fourier Transform (FFT) with overlap technique. The FFT overlap is used to estimate the location of underwater target. Digital signal processing (DSP) algorithms are utilized on this system for extracting the information of the signal. Time difference of arrival (TDOA) is computed by retrieving difference between max FFT overlap of 2 different receivers, and it is multiplied by a constant which varies with overlap percentage. The peak amplitude is determined by computing FFT with 100% overlap. The location of target is determined by using angle estimation technique. This approach is tested on shallow water to obtain the direction of target. Result shows significant performance from the proposed approach.
KW - Digital Signal Processing (DSP)
KW - Fast Fourier Transform (FFT)
KW - overlap technique
KW - Positioning system
KW - Time Difference of Arrival (TDOA)
UR - http://www.scopus.com/inward/record.url?scp=85070650500&partnerID=8YFLogxK
U2 - 10.1109/USYS.2018.8779009
DO - 10.1109/USYS.2018.8779009
M3 - Conference Proceeding
AN - SCOPUS:85070650500
T3 - 2018 IEEE 8th International Conference on Underwater System Technology: Theory and Application, USYS 2018
BT - 2018 IEEE 8th International Conference on Underwater System Technology
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Conference on Underwater System Technology: Theory and Application, USYS 2018
Y2 - 1 December 2018 through 3 December 2018
ER -