TY - GEN
T1 - Broadband sonar waveform design with rational orthogonal wavelet
AU - Yu, Limin
AU - Ma, Fei
AU - Lim, Enggee
AU - Cheng, En
AU - White, Langford B.
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/20
Y1 - 2017/10/20
N2 - The paper proposes a new family of broadband sonar pulses. Each pulse is formed by a combination of orthogonal wavelet basis functions as subpulses with variable scaling factor and shifts. The wavelet adopted is a complex rational orthogonal wavelet (CROW) with a fractional scale dilation factor valued between 1 and 2. The number of subpulses, scaling factor and their time shifts are designed to ensure that the sonar pulse conforms to a designated signal spectrum. The issue of peak-to-average power ratio (PAPR) of the sonar pulse is explored and design example is presented with minimized PAPR. The proposed waveform design features efficient detection algorithm based on CROW analysis filter bank (FB). The detection performance is analyzed regarding Doppler resistance, noise mitigation and multipath by simulations. Preliminary results show that the designed detection system is able to cope with severe multipath, high ambient noise and sever Doppler dispersion.
AB - The paper proposes a new family of broadband sonar pulses. Each pulse is formed by a combination of orthogonal wavelet basis functions as subpulses with variable scaling factor and shifts. The wavelet adopted is a complex rational orthogonal wavelet (CROW) with a fractional scale dilation factor valued between 1 and 2. The number of subpulses, scaling factor and their time shifts are designed to ensure that the sonar pulse conforms to a designated signal spectrum. The issue of peak-to-average power ratio (PAPR) of the sonar pulse is explored and design example is presented with minimized PAPR. The proposed waveform design features efficient detection algorithm based on CROW analysis filter bank (FB). The detection performance is analyzed regarding Doppler resistance, noise mitigation and multipath by simulations. Preliminary results show that the designed detection system is able to cope with severe multipath, high ambient noise and sever Doppler dispersion.
KW - Complex rational orthogonal wavelet
KW - Peak-to-average power ratio reduction
KW - Sonar pulse design
KW - Wavelet filter bank (FB)
UR - http://www.scopus.com/inward/record.url?scp=85050724790&partnerID=8YFLogxK
U2 - 10.1109/ICCWAMTIP.2017.8301451
DO - 10.1109/ICCWAMTIP.2017.8301451
M3 - Conference Proceeding
AN - SCOPUS:85050724790
T3 - 2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
SP - 70
EP - 73
BT - 2016 13th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th International Computer Conference on Wavelet Active Media Technology and Information Processing, ICCWAMTIP 2017
Y2 - 15 December 2017 through 17 December 2017
ER -