Results 181 to 190 of about 978,152 (207)

Parallel vector multidimensional slant, Haar, and Walsh-Hadamard transforms

Multidimensional Systems and Signal Processing, 1992
A new factorization for the slant matrix is developed. The structure of the proposed slant algorithm based on the new factorization is suitable for vector and parallel processing of one- and two-dimensional slant transforms. A unified approach to compute the Walsh-Hadamard, Haar, and slant transforms is presented.
Mohamed El-Sharkawy 0001, Maurice Aburdene, Wenlong Tsang   +2 more
openaire   +3 more sources

STC-GFDM systems with Walsh-Hadamard transform

2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT), 2016
Generalized Frequency Division Multiplexing (GFD-M) is a promising candidate waveform for the air interface of the fifth generation (5G) communication networks. The combination of GFDM and time-reversal space-time coding (TR-STC) can improve the bit error rate (BER) performance.
Wei Zhang, Zhimin Zhang, Jipeng Jia, Lin Qi   +3 more
openaire   +1 more source

Comment on "A useful property of the coefficients of a Walsh - Hadamard transform

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1981
Ahtract-Measurement of the pth-harmonic output of a memoryless nonlinearity with a single sinusoid as input provides enough information to compute all intermodulation products falling in the same harmonic zone. For the case of two input sinusoids of arbitrary amplitudes, an integral expression (representing a weighted average of the measured ...
openaire   +1 more source

On some properties of Walsh-Hadamard transformed OFDM

Proceedings IEEE 56th Vehicular Technology Conference, 2003
We present our study on the signal properties of a Walsh Hadamard transformed (WHT) OFDM system, i.e., an OFDM system with a WHT implemented before the OFDM modulation. Starting from a linear algebraic model, we first derive the probability density function of the transmitted signal.
null Yan Wu, null Chin Keong Ho, null Sumei Sun   +2 more
openaire   +1 more source

Relations between Haar and Walsh/Hadamard transforms

Proceedings of the IEEE, 1972
Relations between the Haar and Walsh/Hadamard (W/H) transforms, which are proved, show that for some applications the Haar transform performs as well as, and faster than, the W/H transform. These relations yield a family of orthogonal transforms including the Haar and W/H transforms with a common fast algorithm.
openaire   +1 more source

Algorithm of Walsh-Hadamard Transform with Optical Approach

Journal of Information and Computational Science, 2013
In this paper, the fast algorithm to Walsh-Hadamard transform (WHT) is studied from the point of view of the optical computation. Firstly, MSD addition and butterfly calculation in discrete WHT are presented in detail. Then the design and implementation scheme of fast algorithm of WHT is proposed and the software simulations to fast WHT are carried out
openaire   +1 more source

Block Walsh–Hadamard Transform-Based Binary Layers in Deep Neural Networks

Transactions on Embedded Computing Systems, 2022
Hongyi Pan, Ahmet Enis Çetin, Diaa Badawi   +2 more
exaly  

Secure Medical Image Encryption With Walsh–Hadamard Transform and Lightweight Cryptography Algorithm

Medical and Biological Engineering and Computing, 2022
Ömer Kasim
exaly  

Discrete Walsh-Hadamard Transform

2001
openaire   +1 more source

Spectral Modes of the Walsh-Hadamard Transform

IEEE Transactions on Electromagnetic Compatibility, 1971
openaire   +1 more source