Compressive sensing of frequency-hopping spread spectrum signals

Feng Liu; Yookyung Kim; Nathan A. Goodman; Amit Ashok; Ali Bilgin

doi:10.1117/12.919561

8 June 2012 Compressive sensing of frequency-hopping spread spectrum signals

Feng Liu, Yookyung Kim, Nathan A. Goodman, Amit Ashok, Ali Bilgin

Proceedings Volume 8365, Compressive Sensing; 83650P (2012) https://doi.org/10.1117/12.919561
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

In this paper, compressive sensing strategies for interception of Frequency-Hopping Spread Spectrum (FHSS) signals are introduced. Rapid switching of the carrier among many frequency channels using a pseudorandom sequence (unknown to the eavesdropper) makes FHSS signals dicult to intercept. The conventional approach to intercept FHSS signals necessitates capturing of all frequency channels and, thus, requires the Analog-to-Digital Converters (ADCs) to sample at very high rates. Using the fact that the FHSS signals have sparse instanta- neous spectra, we propose compressive sensing strategies for their interception. The proposed techniques are validated using Gaussian Frequency-Shift Keying (GFSK) modulated FHSS signals as dened by the Bluetooth specication.

Citation Download Citation

Feng Liu, Yookyung Kim, Nathan A. Goodman, Amit Ashok, and Ali Bilgin "Compressive sensing of frequency-hopping spread spectrum signals", Proc. SPIE 8365, Compressive Sensing, 83650P (8 June 2012); https://doi.org/10.1117/12.919561

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