22   Artículos

 
en línea
Mengjiao Li and Wenqin Wang    
Orthogonal frequency-division multiplexing (OFDM) chirp waveforms are an attractive candidate to be a dual-function signal scheme for the joint radar and communication systems. OFDM chirp signals can not only be employed to transmit communication data th... ver más
Revista: Information    Formato: Electrónico

 
en línea
Miaomiao Yu, Hongyong Yuan, Kaiyuan Li and Lizheng Deng    
To separate the noise and important signal features of the indoor carbon dioxide (CO2) concentration signal, we proposed a noise cancellation method, based on time-varying, filtering-based empirical mode decomposition (TVF-EMD) with Bayesian optimization... ver más
Revista: Algorithms    Formato: Electrónico

 
en línea
Fan Yin, Chao Li, Haibin Wang, Shihong Zhou, Leixin Nie, Yonglin Zhang and Hao Yin    
Digital beamforming techniques find wide applications in the field of underwater acoustic array signal processing. However, their azimuthal resolution has long been constrained by the Rayleigh limit, consequently limiting their detection performance. In ... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Arash Abbasi and Frederic Nabki    
A wideband cascaded receiver and a stacked receiver using an improved clock strategy are proposed to support the software-defined radio (SDR). The improved clock strategy reduces the number of mixer switches and the number of LO clock paths required to d... ver más
Revista: Journal of Low Power Electronics and Applications    Formato: Electrónico

 
en línea
Fengqi Tan, Changchun Bao and Jing Zhou    
Adaptive beamforming and deconvolution techniques have shown effectiveness for reducing noise and reverberation. The minimum variance distortionless response (MVDR) beamformer is the most widely used for adaptive beamforming, whereas multichannel linear ... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Xianzheng Deng, Xin Bian and Mingqi Li    
In order to improve system coverage performance, in this paper, a multi-service transmission scheme on the basis of the puncturing technique, namely layered division multiplexing extension frequency-division multiplexing (LDM-Ex-FDM), is proposed. The ke... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Ali O. Abid Noor     Pág. 270 - 290
Methods for hearing aids sought to compensate for loss in hearing by amplifying signals of interest in the audio band. In real-world, audio signals are prone to outdoor noise which can be destructive for hearing aid.  Eliminating interfering noise a... ver más
Revista: Emitter: International Journal of Engineering Technology    Formato: Electrónico

 
en línea
Tianhua Xu, Cenqin Jin, Shuqing Zhang, Gunnar Jacobsen, Sergei Popov, Mark Leeson and Tiegen Liu    
This work is performed for the compensation of the laser phase noise (LPN) and the equalization enhanced phase noise (EEPN) in high-capacity, long-haul, coherent optical fiber networks.
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Ali Y. Al-Zahrani    
Several emerging mobile applications and services (e.g., autonomous cars) require higher wireless throughput than ever before. This demand stresses the need for investigating novel methods that have the potential to dramatically increase the spectral eff... ver más
Revista: Future Internet    Formato: Electrónico

 
en línea
Sang-Kwon Lee, Seungmin Lee, Jiseon Back and Taejin Shin    
This paper presents a novel active noise cancellation (ANC) method to reduce the engine noise inside the cabin of a car. During the last three decades, many methods have been developed for the active control of a quasi-stationary narrowband sinusoidal si... ver más
Revista: Applied Sciences    Formato: Electrónico

« Anterior     Página: 1 de 2     Siguiente »