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Communications in algebra, ISSN 1532-4125, 2018, Volume 46, Issue 9, pp. 3745 - 3765
Using supercharacter theory, we identify the matrices that are diagonalized by the discrete cosine and discrete sine transforms, respectively... 
discrete cosine transform | discrete sine transform | time domain | DFT | Supercharacter | DCT | DST | 15B99, 65T50 | exponential basis | frequency domain | discrete Fourier transform | BASIC CHARACTERS | SUMS | MATHEMATICS | PRECONDITIONERS | MATRICES | GRAPHIC NATURE | Trigonometric functions | Combinatorial analysis
Journal Article
IEEE Transactions on Wireless Communications, ISSN 1536-1276, 07/2016, Volume 15, Issue 7, pp. 5087 - 5100
...) and Discrete Fourier Transform (DFT) to capture the hidden sparsity of the channel. KLT basis is optimal in extracting the uncorrelated information from channel, but requires channel statistical information... 
Training | pilot contamination | OFDM | Discrete Fourier transforms | Channel estimation | Interference | Massive MIMO | Discrete Fourier Transform | channel sparsity | MIMO | Contamination | Karhunen–Loéve Transform | channel estimation | Karhunen-Loéve Transform | OFDM SYSTEMS | WIRELESS | Karhunen-Loeve Transform | TELECOMMUNICATIONS | ANTENNA SYSTEMS | FEEDBACK | ENGINEERING, ELECTRICAL & ELECTRONIC | MIMO (control systems) | Decontamination | Pilots | Subspaces | Statistics | Channels | Wideband
Journal Article
IEEE Transactions on Signal Processing, ISSN 1053-587X, 10/2003, Volume 51, Issue 10, pp. 2527 - 2539
Journal Article
2015 IEEE Radar Conference (RadarCon), ISSN 1097-5659, 05/2015, Volume 2015-, Issue June, pp. 0405 - 0410
In this paper, a new wideband direction-of-arrival (DOA) estimation algorithm, which is an iterative coherent subspace method based on two-dimensional discrete Fourier transform (2D-DFT), is proposed... 
Manifolds | coherent signal subspace | Direction-of-arrival estimation | Frequency-domain analysis | wideband direction finding | Focusing | Estimation | two-dimensional discrete Fourier transform | Arrays | Covariance matrices | iterative algorithm
Conference Proceeding
IEEE Transactions on Power Delivery, ISSN 0885-8977, 07/2012, Volume 27, Issue 3, pp. 1260 - 1267
Journal Article
The Journal of fourier analysis and applications, ISSN 1531-5851, 2016, Volume 23, Issue 6, pp. 1263 - 1310
Journal Article
by Chen, Y and Duan, LT and Sun, WZ and Xu, JX
CMC-COMPUTERS MATERIALS & CONTINUA, ISSN 1546-2218, 2020, Volume 62, Issue 2, pp. 849 - 859
.... With the use of the sinc function model of the discrete Fourier transform (DFT) coefficients on the input data, a fast and accurate frequency estimator is devised... 
interpolation | 2-D Frequency estimation | MATERIALS SCIENCE, MULTIDISCIPLINARY | COMPUTER SCIENCE, INFORMATION SYSTEMS | parameter estimation | PARAMETERS | ALGORITHMS | FREQUENCY ESTIMATION | ESPRIT | discrete Fourier transform | Interpolation | Random noise | Fourier transforms | Algorithms | Computer simulation | Coefficients | Variance analysis | Complexity
Journal Article
2009 IEEE International Conference on Acoustics, Speech and Signal Processing, ISSN 1520-6149, 04/2009, pp. 29 - 32
Conference Proceeding
2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, ISSN 1520-6149, 2004, Volume 2, pp. ii - 481
.... The method is based on using discrete Fourier transform (DFT) data and enables the user to select frequency sub-bands within which the frequencies of the harmonics of interest are known to reside... 
Algorithm design and analysis | Sufficient conditions | Discrete Fourier transforms | Harmonic analysis | Attenuation | Frequency estimation | Yield estimation | Colored noise | Computational complexity | Frequency domain analysis
Conference Proceeding
2013 International Conference on Wireless Communications and Signal Processing, 10/2013, pp. 1 - 5
.... However, strong narrowband interference (NBI) still seriously affects the system. In this paper, by observing that the NBI signal is approximately sparse in the discrete Fourier transform (DFT... 
subspace | mitigation | NBI | Discrete Fourier transforms | Receivers | Interference | IR-UWB | Vectors | Sparse matrices | Compressed sensing | Ultra wideband technology | Mitigation | Subspace
Conference Proceeding
TheScientificWorld, ISSN 2356-6140, 10/2015, Volume 2015, pp. 151370 - 10
The problem of channel estimation for multicarrier communications is addressed. We focus on systems employing the Discrete Cosine Transform Type-I (DCT1... 
Discrete-time systems | Mobile communication systems | Wireless communication systems | Algorithms | Engineering research | Mathematical research | Transformations (Mathematics) | Research | Radio frequency | Communications systems | Fourier transforms | Transmitters | Noise | Spread spectrum | Symmetry
Journal Article
IEEE journal of selected topics in signal processing, ISSN 1941-0484, 2019, Volume 13, Issue 5, pp. 1119 - 1135
.... The proposed method is especially effective if the channel can be decomposed in the angular domain, such that DFT codebooks enable an efficient CSI compression... 
Discrete Fourier transforms | Grassmannian quantization | product codebook | FDD | Complexity theory | Limited feedback | Quantization (signal) | Transmitters | Precoding | FD-MIMO | massive MIMO | Channel models | MIMO communication | DESIGN | BOUNDS | QUANTIZATION | ENGINEERING, ELECTRICAL & ELECTRONIC
Journal Article
Journal of Mathematical Biology, ISSN 0303-6812, 11/2016, Volume 73, Issue 5, pp. 1053 - 1079
.... The magnitude of a PPS reflects the strength of a signal on periodic positions. In comparison with Fourier transform, the PPS method avoids spectral leakage, and reduces background noise that appears high in Fourier power spectrum... 
92D20 | Mathematical and Computational Biology | DNA genome | Spectral leakage | Periodicity | Fourier transform | Mathematics | Applications of Mathematics | 42A38 | Periodic power spectrum | SEARCH | IDENTIFICATION | FREQUENCY-DOMAIN | FOURIER-TRANSFORM | BIOLOGY | MATHEMATICAL & COMPUTATIONAL BIOLOGY | GENE PREDICTION | REPEATS | REPETITIVE DNA | Algorithms | Genomics - methods | Nucleotides - analysis | Sequence Analysis, DNA - methods | Base Sequence | Genome - genetics | Fourier transformations | Usage | Nucleotide sequencing | Methods | DNA sequencing
Journal Article
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