This repository contains the Matlab code to accompany the following publication: F.-X. Socheleau, Cyclostationarity of Communication Signals in Underwater Acoustic Channels, accepted for publication in IEEE Journal of Oceanic Engineering. Note that the real data presented in the paper are not provided (data owned by third parties).
This code is published under the MIT License (see full license in the 'LICENSE' file)
Required software: Matlab (tested on R2018b) with the signal processing and statistics toolboxes.
The code folder contains the main scripts to run:
demo1_MSML_Doppler.mis an illustration of the time-varying Doppler scale estimator described in Sec. III-C of the paper. It is applied to a QPSK signal filtered by a simulated multiscale-multilag channel in additive white Gaussian noise.demo2_MSML_CS_signature_detection.mis an illustration of the cyclostationary-signature detectors described in Sec. III-D. It is applied to a CP-OFDM signal (with a RRC window) filtered by a simulated multiscale-multilag channel in additive white alpha-stable noise.demo3_DISP_DSSS_symb.mis an illustration of the symbol-rate estimator described in Sec. IV-C. It is applied to a DSSS signal filtered by a low-frequency dispersive channel in additive white Gaussian noise.run_all_demos.mruns the three demo scripts in sequence
Some parameters can be modified such as SNR or the number of hydrophones in the third script. However, note that this is a demonstration code only designed to facilitate the understanding of the paper. Application to any other dataset may require modifications (optimization strategies, thresholds, etc.) for which the author will not provide any support.
The subroutines folder contains all the functions called by the main scripts and the data folder contains .mat files with signals and simulation parameters. Figures are stored in the results folder.