Abstract
In this paper, a new communication system that inherently enables the estimation of channel parameters by employing the fractional Fourier transform is proposed. The system uses chirp bases as carriers and two of these carriers are also employed as pilot signals without decreasing the capacity of the system. We make use of two important properties of the fractional Fourier transform which are related to time and frequency shifts to determine the time-delay and doppler frequency parameters. Moreover data is transmitted in a circular time-frequency area rather than a rectangular one.
Keywords
Chirp
Fractional Fourier transform
Chirp spread spectrum
Channel (broadcasting)
Computer science
Fourier transform
Electronic engineering
Doppler effect
Wireless
Communications system
Time–frequency analysis
Telecommunications
Acoustics
Algorithm
Fourier analysis
Engineering
Spread spectrum
Mathematics
Physics
Optics
Direct-sequence spread spectrum
Radar
Mathematical analysis
Subject Areas
Mathematical Analysis and Transform Methods
·Applied Mathematics ·Physical Sciences
Digital Filter Design and Implementation
·Signal Processing ·Physical Sciences
Image and Signal Denoising Methods
·Computer Vision and Pattern Recognition ·Physical Sciences
Citations by Year
2022: 1
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