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Proceedings Paper

A novel method for chirp signal detection based on fractional Fourier transform
Author(s): Qiufeng Shang; Wenyan He
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Paper Abstract

A new method for chirp signal detection based on Fractional Fourier Transform (FRFT) is described in order to improve the performance of power line communication system. A character of chirp signal is that its energy can be concentrated properly when the fractional Fourier angle is suitable, but noise does not have this feature, signal mixed with noise can be separated in specific fractional Fourier domain, and then narrow-band filter is adopted for the signal obtained in the fractional Fourier domain, this character can be used for signal detection and then demodulation. Finally, simulation experiments indicate that the method is feasible and the capacity of the system's anti-noisy disturbance is improved.

Paper Details

Date Published: 13 October 2008
PDF: 5 pages
Proc. SPIE 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment, 71280R (13 October 2008); doi: 10.1117/12.806571
Show Author Affiliations
Qiufeng Shang, North China Electric Power Univ. (China)
Wenyan He, North China Electric Power Univ. (China)


Published in SPIE Proceedings Vol. 7128:
Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment

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