Near orthogonal discrete quaternion Fourier transform components via an optimal frequency rescaling approach.
Lingyue HuBingo Wing-Kuen LingCharlotte Yuk-Fan HoGuoheng HuangPublished in: IET Signal Process. (2020)
Keyphrases
- fourier transform
- frequency domain
- frequency spectrum
- discrete fourier transform
- fourier coefficients
- hartley transform
- polar coordinates
- signal processing
- phase difference
- fourier analysis
- fourier domain
- radon transform
- low frequency
- fast fourier transform
- spatial domain
- correlation function
- power spectral density
- neural network
- lifting wavelet
- similarity measure