Title :
Wideband signal detection by employing differential sampling rates
Author :
Liou, L.L. ; Lin, D.M. ; Tsui, J.B. ; Hary, S.
Author_Institution :
Sensor Directorate, Air Force Res. Lab., Wright-Patterson AFB, OH, USA
Abstract :
A wideband electronic warfare digital receiver design is proposed. The design utilizes the frame-based FFT algorithm commonly implemented in traditional electronic warfare (EW) encoder design [1]. The frequency coverage in traditional digital receiver designs is limited to a single Nyquist zone due to the desire to eliminate aliasing effects from multiple Nyquist zones that generate frequency ambiguities. The proposed design is based on a two-channel structure that allows M Nyquist.
Keywords :
broadband networks; electronic warfare; fast Fourier transforms; radar detection; radio receivers; signal sampling; wireless channels; Nyquist zone; aliasing effect elimination; differential sampling rate; electronic warfare encoder design; frame-based FFT algorithm; frequency ambiguity; frequency coverage; two-channel structure; wideband electronic warfare digital receiver design; wideband signal detection; Algorithm design and analysis; Clocks; Electronic warfare; Frequency modulation; Receivers; Wideband;
Conference_Titel :
Aerospace and Electronics Conference (NAECON), Proceedings of the 2011 IEEE National
Conference_Location :
Dayton, OH
Print_ISBN :
978-1-4577-1040-7
DOI :
10.1109/NAECON.2011.6183094
