Results 11 to 20 of about 1,180,225 (167)

An Efficient Scheme for Broadband Adaptive Beamforming [PDF]

, 1999
This paper introduces an oversampled subband approach to linearly constrained minimum variance adaptive broadband beamforming. This method is motivated by the considerable reduction in computation over fullband implementation and resulting large ...
S. Weiss, I.K. Proudler, Weiss, S., R.W. Stewart, Schabert, M, Hoffman, M W, Stewart, R.W., Stewart, R W, M.W. Hoffman, Schabert, Marion, Hoffman, Michael, Weiss, Stephan, Proudler, I., Weiss, S, Schabert, M., Proudler, I K, M. Schabert, Hoffman, M.W., Stewart, Robert   +18 more
core   +1 more source

Adaptive beamforming for large arrays in satellite communications systems with dispersed coverage [PDF]

, 2011
Conventional multibeam satellite communications systems ensure coverage of wide areas through multiple fixed beams where all users inside a beam share the same bandwidth. We consider a new and more flexible system where each user is assigned his own beam,
Larue de Tournemine, Cécile, J. Montesinos, O. Besson, Besson, Olivier, C. Larue de Tournemine, Montesinos, Julien   +5 more
core   +1 more source

Robust adaptive beamforming using a Bayesian steering vector error model [PDF]

, 2013
We propose a Bayesian approach to robust adaptive beamforming which entails considering the steering vector of interest as a random variable with some prior distribution.
Bidon, Stéphanie, Besson, Olivier
core   +1 more source

Broadband Beamforming Using the Least Square Method Improved via Adaptive Diagonal Loading [PDF]

Journal of Electromagnetic Engineering and Science, 2023
The least square method (LSM) is a commonly used beamforming method. However, it limits the beamforming frequency bandwidth and is vulnerable to noise; therefore, diagonal loading is used to overcome these limitations.
Euiho Shin, Young-seek Chung, Cheolsun Park, Seonkyo Kim, Jungsuek Oh   +4 more
doaj   +1 more source

Effect of signal to interference ratio on adaptive beamforming techniques

Journal of King Saud University: Engineering Sciences, 2018
The capability of adaptive antenna array lies in forming higher gain in the user directions and lower gain in the interferer directions. The technique used to produce such radiation pattern by calculating the excitation weights are called the adaptive ...
Smita Banerjee, Ved Vyas Dwivedi
doaj   +1 more source

Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems

, 2010
A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna arrays elements, are first ...
Sheng Chen, Chen, Sheng, Wang Yao, Hanzo, Lajos, Lajos Hanzo, Yao, Wang   +5 more
core   +2 more sources

Robustness Beamforming Algorithms [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2014
Adaptive beamforming methods are known to degrade in the presence of steering vector and covariance matrix uncertinity. In this paper, a new approach is presented to robust adaptive minimum variance distortionless response beamforming make robust against
Sajad Dehghani, Naser Parhizgar
doaj   +2 more sources

A Novel Beamforming Algorithm for GNSS Receivers with Dual-Polarized Sensitive Arrays in the Joint Space–Time-Polarization Domain

Sensors, 2018
Dual-polarized sensitive arrays (DPSAs) with the space⁻time-polarization adaptive processing (STPAP) technique, which employs the polarization domain as well as the space domain and time domain to filter out interferences, can cancel a larger ...
Haiyang Wang, Zhicheng Yao, Jian Yang, Zhiliang Fan   +3 more
doaj   +1 more source

Multi-mode single sideband time modulation harmonic adaptive beamforming

Zhongguo Jianchuan Yanjiu
ObjectiveThis study proposes an innovative beamforming method to achieve high-efficiency harmonic adaptive beamforming through multi-mode single sideband time modulation technology.MethodA multi-mode single sideband time modulation module containing ...
Tao YANG, Xiaonan ZHAO, Zhenji LIU, Tingting FAN, Liu YANG, Yu XIA, Jingfeng CHEN   +6 more
doaj   +1 more source

Linear Beamforming Assisted Receiver for Binary Phase Shift Keying Modulation Systems [PDF]

, 2006
The paper considers adaptive beamforming assisted receiver for multiple antenna aided multiuser systems that employ binary phase shift keying (BPSK) modulation.
Tan, S., S. Chen, S. Tan, L. Hanzo, Hanzo, L., Chen, S.   +5 more
core   +2 more sources