Results 1 to 10 of about 34,743 (255)

A generalised Hadamard transform [PDF]

open access: greenProceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
To appear in the proceedings of the 2005 IEEE International Symposium on Information Theory, Adelaide, Australia, September 4-9 ...
K. J. Horadam
core   +9 more sources

Hadamard Transform Ion Mobility Spectrometry Based on Matrix Encoding Modulation [PDF]

open access: yesSensors, 2023
Ion mobility spectrometry (IMS) has been widely used for the on-site detection of trace chemicals, but continue to suffer from a low duty cycle of ion injection.
Ke Chen, Lingfeng Li, Peng Li
doaj   +2 more sources

The Improvement on the Performance of DMD Hadamard Transform Near-Infrared Spectrometer by Double Filter Strategy and a New Hadamard Mask [PDF]

open access: yesMicromachines, 2019
In the Hadamard transform (HT) near-infrared (NIR) spectrometer, there are defects that can create a nonuniform distribution of spectral energy, significantly influencing the absorbance of the whole spectrum, generating stray light, and making the signal-
Zifeng Lu   +4 more
doaj   +2 more sources

ANALYSIS OF THE BASELINE DRIFT ARTIFACT IN HADAMARD TRANSFORM SEPARATION TECHNIQUES [PDF]

open access: goldQuímica Nova, 2020
The baseline drift artifact (BDA), namely, the baseline bias between the Hadamard transform (HT) spectrum and the signal averaging (SA) spectrum was unfortunately found in the HT pulsed separation techniques, which makes the HT analytical chemistry face ...
Yan Hong   +5 more
doaj   +2 more sources

Using Hadamard transform for cryptanalysis of pseudo-random generators in stream ciphers [PDF]

open access: diamondEAI Endorsed Transactions on Energy Web, 2020
In this work we discuss results obtained from an application of the Hadamard transform to cryptanalysis, andin particular, we determine the probability to decipher different pseudo-random number generators used ascomponents of stream ciphers.
Guillermo Sosa-Gómez   +2 more
doaj   +3 more sources

Fault identification of ball bearings using Fast Walsh Hadamard Transform, LASSO feature selection, and Random forest classifier [PDF]

open access: diamondFME Transactions, 2022
To reveal the machinery health condition, time-frequency analysis is an effective tool when signals are non-stationary. To identify bearing faults, numerous techniques have been proposed by various researchers.
Dave V., Thakker H., Vakharia V.
doaj   +2 more sources

Some Cryptographic Properties of Functions Based on their 2q-Nega-Hadamard Transform [PDF]

open access: goldInternational Journal of Mathematical, Engineering and Management Sciences
Negabent functions play a vital role in the field of cryptography and coding theory for designing secure cryptosystems. In this article, we investigate the various properties of 2q-nega-Hadamard transform (2q-NHT) of the functions from Z_q^n to Z_2q with
Deep Singh   +4 more
doaj   +2 more sources

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