Title

Pseudo-Noise Based Time of Arrival Estimation for Underwater Acoustic Sensor Localization

Abstract

This paper compares the performance of single pseudo-noise (PN) and dual PN (DPN) sequences for time of arrival (ToA) estimation in underwater acoustic (UWA) localization. The single PN scheme uses the correlation of a local PN sequence and the received PN signal to estimate the ToA. The DPN scheme utilizes the cross correlation of the two received PN segments in one signal frame to calculate the ToA. Both simulation and field test results show that the DPN design outperforms the single PN scheme, as the DPN scheme is robust to the severe underwater acoustic channel dispersion and the high carrier frequency offset (CFO) in low-cost hardware systems where the atomic clock is unavailable.

Meeting Name

OCEANS '16 MTS/IEEE Shanghai(2016, Apr. 10-13, Shanghai, China)

Department(s)

Electrical and Computer Engineering

Sponsor(s)

National Science Foundation (U.S.)

Comments

This work is supported in part by the National Science Foundation grant ECCS1408316 of the United States.

Keywords and Phrases

Acoustic noise; Frequency allocation; Underwater acoustics; Carrier frequency offsets; Cross correlations; Low cost hardware; PN sequence; Pseudo noise; Time of arrival estimation; Underwater acoustic channels; Underwater acoustic sensors; Time of arrival

International Standard Book Number (ISBN)

9781467397254

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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