Results 211 to 219 of about 5,165 (219)

Performance of Walsh-Hadamard transformed STBC OFDM system

2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514), 2005
We study the performance of a Walsh-Hadamard transformed (WHT) space-time block coded (STBC) OFDM system, which we refer as the WHT-STBC-OFDM system. We show that, with the WHT transform, the error performance of the STBC coded OFDM system can be improved in terms of both bit error rate (BER) and packet error rate (PER) through simple linear detection.
null Wu Yan, null Zhongding Lei, null Sumei Sun   +2 more
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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.
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Adaptive filtering using the fast Walsh-Hadamard transformation

IEEE Transactions on Electromagnetic Compatibility, 1989
A fast implementation of the least-mean-square error (LMS) adaptive transversal filter is proposed. The fast Walsh-Hadamard transform technique is adopted in this implementation. This filter is shown to promise a significant reduction in computation over both the conventional time-domain and the frequency-domain LMS adaptive filters. >
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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
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A parameterisable fast Walsh-Hadamard transform

2023
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Fast Transformations with Walsh-Hadamard Functions

1972
Title: Fast Transformations with Walsh-Hadamard Functions, Author: Frank Y.Y.
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Discrete Walsh-Hadamard Transform

2001
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Spectral Modes of the Walsh-Hadamard Transform

IEEE Transactions on Electromagnetic Compatibility, 1971
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The Walsh-Hadamard, slant, and Haar transforms

2012
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