NDLI: Noncooperative detection and parameter estimation of underwater acoustic DSSS-BPSK signal

Content Provider	IEEE Xplore Digital Library
Author	Xiao-yan Wang Zhi-feng Zhu Shi-liang Fang
Copyright Year	2007
Description	Author affiliation: Southeast Univ. Nanjing, Nanjing (Xiao-yan Wang; Zhi-feng Zhu; Shi-liang Fang)
Abstract	Because of its high security and low probability of interception performance, DSSS-BPSK signal has been widely used in underwater acoustic engineering field. It is usually quite difficult to detect this kind of signal in noncooperative and real-time occasions. Based on the autocorrelation detection algorithm, a combination method of frequency band-divided pre-filteting and power spectrum reprocessing, which can be used to implement the real-time detection of underwater acoustic DSSS-BPSK signal, is put forward in this paper. This method can also be used to the estimation of the pseudo-random code period and chip width, and no prior knowledge of the intercepted signals is necessarily required. With frequency pre-filtering, it can not only suppress the strong ocean noise effectively, but also make the real-time detection possible via the FFT algorithm. The results of computer simulation and practical experiment have both validated the feasibility and validity of this method.
Starting Page	52
Ending Page	56
File Size	887530
Page Count	5
File Format	PDF
ISBN	9781424413577
DOI	10.1109/MMVIP.2007.4430714
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-04
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Parameter estimation power spectrum reprocessing Acoustic signal detection Underwater tracking DSSS-BPSK Security chip width Acoustical engineering pseudo noise sequence period Spread spectrum communication Frequency Autocorrelation Underwater acoustics Power engineering and energy
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in