Results 31 to 40 of about 202 (125)

Компрессия аудиоданных с помощью графического преобразования [PDF]

, 2019
Для получения базисной матрицы преобразования на основе графов мы предложили две графические структуры для аудиосигналов. Затем мы использовали базовую матрицу ГТ для декорреляции данных и сжатия звука.
Шейко, Ю. А., Соловьёва, А. В.   +1 more
core   +1 more source

Anomaly Detection for Suspension Systems Based on the Gaussian Distribution of Hyperspheres

机车电传动, 2021
The abnormality of the suspension system means that the operating state of the suspension system does not match the expected state, and the system has no faults in the actual operation of the middle-low speed maglev train.
Ping WANG, Zi MEI, Zhiqiang LONG
doaj  

Iris recognition Using Fast Walsh Hadamard Transform Based feature Space [PDF]

, 2016
The significance of Iris detection and recognition in area of bioinformatics and pattern recognition has been increased from last few decades. Looking at the importance of Iris detection and recognition, we propose a robust, stable and reliable ...
Akbar, Shahid, Khan, Haroon, Sohail, Mohammad, Hayat, Maqsood   +3 more
core  

Fast Walsh–Hadamard transform and deep learning approach for diagnosing psychiatric diseases from electroencephalography (EEG) signals

, 2023
Psychiatric diseases are very common worldwide, including schizophrenia (SZ) and Alzheimer's disease (AD). Early diagnosis is very important for medical intervention.
GÖKER, HANİFE, Mustafa Tosun, Hanife Göker, Tosun, Mustafa   +3 more
core   +1 more source

Yarn periodical errors determination using three signal processing approaches [PDF]

, 2013
This paper presents a study developed for identifying the type and location of yarn periodical errors applying three different signal processing approaches based on FFT – Fast Fourier Transform, FWHT – Fast Walsh – Hadamard Transform and FDFI – Fast ...
Carvalho, Vítor, Belsley, M., Vasconcelos, Rosa, Soares, Filomena   +3 more
core   +1 more source

Audio Encryption Algorithm Based on Chen Memristor Chaotic System

, 2021
The data space for audio signals is large, the correlation is strong, and the traditional encryption algorithm cannot meet the needs of efficiency and safety.
Xiaoming Song, Guodong Li, Wanying Dai, Xiangliang Xu   +3 more
core   +1 more source

Design and Application Evaluation of Vacuum Insulated Tubing for Wax Control in Bohai Oilfield

, 2017
Bohai J Oilfield has typical characteristics of high wax content and wax precipitation point (WPT). Wax deposition in the tubing had been an ongoing problem after this Oilfield came on stream, which caused significant productivity losses. Various methods
Mei Mu, Yigang Liu, Baobing Shang, Huaxiao Wu, Jun Ma, Xianghai Meng, Zhaobiao Jiang, Jianhua Bai   +7 more
core   +1 more source

Spread Spectrum OFDM-IM With Efficient Precoded Matrix and Low Complexity Detector

IEEE Access
This paper introduces a novel scheme that employs efficient precoded matrices for index modulation orthogonal frequency division multiplexing namely (EP-OFDM-IM).
Ahmed Waheed, Somayeh Mohammady
doaj   +1 more source

SVD-Based Image Watermarking Using the Fast Walsh-Hadamard Transform, Key Mapping, and Coefficient Ordering for Ownership Protection

, 2019
Proof of ownership on multimedia data exposes users to significant threats due to a myriad of transmission channel attacks over distributed computing infrastructures.
Saki Kowsar, Tahmina Khanam, Jong-Myon Kim, Pranab Kumar Dhar   +3 more
core   +1 more source

Quantum Algorithms for Fast Correlation Attacks on LFSR-Based Stream Ciphers [PDF]

This paper presents quantum algorithms for fast correlation attacks, one of the most powerful techniques for cryptanalysis on LFSR-based stream ciphers in the classical setting.
Akinori Hosoyamada
core   +1 more source