Direction/location estimation and modulation detection for RF sources using steerable 3D IIR digital beam filters

Nilan Udayanga; Arjuna Madanayake; Chamith Wijenayake

doi:10.1117/12.2050800

21 May 2014 Direction/location estimation and modulation detection for RF sources using steerable 3D IIR digital beam filters

Nilan Udayanga, Arjuna Madanayake, Chamith Wijenayake

Author Affiliations +

Proceedings Volume 9103, Wireless Sensing, Localization, and Processing IX; 91030F (2014) https://doi.org/10.1117/12.2050800
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

A planar antenna array based feature detection scheme is proposed to estimate the directional, location and modulation information pertaining to radio sources in a cognitive radio environment. The proposed system employs multiple direction estimation stations and a fusion station. Planar antenna arrays and three-dimensional (3-D) infinite impulse response (IIR) digital filters are employed to perform volume scanning of the radio environment, leading to a spatial power profile, which is subjected to peak detection in order to estimate the direction of arrival corresponding to each source. Cyclosationay feature detection is then performed along each direction to estimate the frequency and modulation information. Two simulation examples are provided to verify the feasibility of the proposed approach.

Citation Download Citation

Nilan Udayanga, Arjuna Madanayake, and Chamith Wijenayake "Direction/location estimation and modulation detection for RF sources using steerable 3D IIR digital beam filters", Proc. SPIE 9103, Wireless Sensing, Localization, and Processing IX, 91030F (21 May 2014); https://doi.org/10.1117/12.2050800

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