Receiver structures for underwater acoustical communications using chirp slope keying

Edit J. Kaminsky; Madalina Barbu

doi:10.1117/12.659899

10 May 2006 Receiver structures for underwater acoustical communications using chirp slope keying

Edit J. Kaminsky, Madalina Barbu

Proceedings Volume 6201, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense V; 620110 (2006) https://doi.org/10.1117/12.659899
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

This paper presents several receiver structures for Chirp Slope Keying (CSK), a digital broadband modulation scheme we propose to use for underwater acoustical communications. In its simplest form, the binary information modulates the slope of a linear chirp, with up-chirps representing ones and down-chirps representing zeros. A time-domain receiver and a novel time-frequency receiver structure based on the Wigner distribution and the Radon Transform are discussed and evaluated in terms of the probability of error versus Signal-to-Noise (SNR) performance. Simulation results and plots are presented for the Additive White Gaussian Noise (AWGN) channel. Results show that if the detector at the receiver operates directly on the slope of the received signal, performance is improved at the expense of computational complexity.

Citation Download Citation

Edit J. Kaminsky and Madalina Barbu "Receiver structures for underwater acoustical communications using chirp slope keying", Proc. SPIE 6201, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense V, 620110 (10 May 2006); https://doi.org/10.1117/12.659899

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