Results 1 to 10 of about 101 (82)

Multidomain Narrowband Interference Intelligent Suppression Method Based on Cognitive Radio and MIMO in UAV Data Link. [PDF]

Comput Intell Neurosci, 2022
In this paper, a kind of antinarrowband interference intelligent method based on cognitive MIMO (multiple‐input multiple‐output) airspace, time domain, frequency domain, and code domain is proposed. This method combines perceptual technology, spread spectrum code, MIMO space‐time coding, and so on.
Luo X, You L, Lv J, Zhong C.
europepmc   +2 more sources

Effective power analysis of multi-tone excitation transmitting system

The Journal of Engineering, 2019
Inter-modulation would occur when the transmitting system is under multi-tone excitation; therefore, the non-linear response of power amplifier unit should be considered in the system design.
Maogang Wei, Furong Yang, Haiyan Huang, Kun Shan   +3 more
doaj   +2 more sources

Efficient Open-Set Recognition for Interference Signals Based on Convolutional Prototype Learning

Applied Sciences, 2022
Interference classification plays an important role in anti-jamming communication. Although the existing interference signal recognition methods based on deep learning have a higher accuracy than traditional methods, these have poor robustness while ...
Xiangwei Chen, Zhijin Zhao, Xueyi Ye, Shilian Zheng, Caiyi Lou, Xiaoniu Yang   +5 more
doaj   +1 more source

Performance study of HF communication using NOMA over narrowband HF channel

IET Communications, Volume 17, Issue 14, Page 1683-1690, August 2023., 2023
The novelty of this research is to increase the bit rate on high frequency (HF) systems. Non‐orthogonal multiple access technique (NOMA) technology is used over HF at narrow band 3 kHz ranges. In order to have real experiments SDR Hack RF systems are used, and the results show improvement in bit rate up to 45%.
Ahmad Ismail, Kamal Mohamedpour
wiley   +1 more source

Customised acoustic therapy delivered through a web‐based platform—An innovative approach to tinnitus treatment

Clinical Otolaryngology, Volume 48, Issue 2, Page 226-234, March 2023., 2023
Abstract Objectives Customised acoustic therapy aims to moderate the neural pathways implicated in the pathophysiology of tinnitus. This study aimed to assess the efficacy of customised acoustic therapy administered via a web‐based treatment platform. Design Clinical trial with prospective recruitment.
James Thomas Connell, Ahmed Bassiouni, Ella Harrison, Stephanie Laden, Sinead O'Brien, Raguwinder Sahota, A. Simon Carney, Andrew Foreman, Suren Krishnan, John‐Charles Hodge   +9 more
wiley   +1 more source

HydroMoth: Testing a prototype low‐cost acoustic recorder for aquatic environments

Remote Sensing in Ecology and Conservation, Volume 8, Issue 3, Page 362-378, June 2022., 2022
In this paper, we demonstrate the current lack of commercially available low‐cost aquatic sound recorders. We then test a prototype device that is twenty times cheaper than currently available hydrophones. Technology like this will open up the field of aquatic bioacoustics to people and organisations who have never before been able to listen underwater.
Timothy A. C. Lamont, Lucille Chapuis, Ben Williams, Sasha Dines, Tess Gridley, Guilherme Frainer, Jack Fearey, Permas B. Maulana, Mochyudho E. Prasetya, Jamaluddin Jompa, David J. Smith, Stephen D. Simpson, Vincent Lecours, Jean Guillard   +13 more
wiley   +1 more source

Abnormal Communication Signals Recognition Based on Image Enhancement and Improved Memory‐Augmented Autoencoder

Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022
Detecting increasing anomalous signals is critical to effective spectrum management due to the complexity of the use of electromagnetic spectrum. The anomaly recognition approach based on autoencoder (AE) heavily relies on the assumption that the reconstruction error of normal signals is generally lower than that of abnormal signals.
Tingyan Kuang, Bo Zhou, Jie Li, Guoru Ding, Qihui Wu, Mingqian Liu   +5 more
wiley   +1 more source

Characteristic Parameter Optimization of Wireless Flaw Sensing System Based on Active Interference Suppression Algorithm

Discrete Dynamics in Nature and Society, Volume 2021, Issue 1, 2021., 2021
Based on the active interference suppression algorithm, this study combines the radar working mode and the interference type and realizes the effective detection of the flaw detection signal by successively processing the radar receiving signal and the filtering processing.
Wenping Wu, Gengxin Sun
wiley   +1 more source

[Retracted] To Improve the Real‐Time Performance of Airborne Data Link Communication System

Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
Ground‐to‐air data link communication has the advantages of fast transmission rate, strong anti‐interference ability, and large data communication volume and has been widely used in the field of civil aviation. This article mainly studies the measures to improve the real‐time performance of the airborne data link communication system. The design of the
Gang Yao, Sang-Bing Tsai
wiley   +1 more source

Wireless Image Transmission Interference Signal Recognition System Based on Deep Learning

Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021
In the process of wireless image transmission, there are a large number of interference signals, but the traditional interference signal recognition system is limited by various modulation modes, it is difficult to accurately identify the target signal, and the reliability of the system needs to be further improved.
Zhijun Guo, Shuai Liu, Deepak Gupta
wiley   +1 more source