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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
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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 +4 more
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Linearity considerations in adaptive antenna array applications [PDF]
, 1995 The use of adaptive antenna in mobile communications base stations is self-explanatory. It offers the potential of increased spectrum efficiency, extended range of coverage and reduced delay spread.
Beach, MA +3 more
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Quadratically Constrained Beamforming Robust Against Direction-of-Arrival Mismatch [PDF]
, 2007 It is well known that the performance of the minimum variance distortionless response (MVDR) beamformer is very sensitive to steering vector mismatch. Such mismatches can occur as a result of direction-of-arrival (DOA) errors, local scattering, near-far ...
Chen, Chun-yang, Vaidyanathan, P. P.
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Design of a Novel Antenna Array Beamformer Using Neural Networks Trained by Modified Adaptive Dispersion Invasive Weed Optimization Based Data [PDF]
, 2013 A new antenna array beamformer based on neural networks (NNs) is presented. The NN training is performed by using optimized data sets extracted by a novel Invasive Weed Optimization (IWO) variant called Modified Adaptive Dispersion IWO (MADIWO).
Cosmas, J +4 more
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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
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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 +3 more
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Multi-mode single sideband time modulation harmonic adaptive beamforming
Zhongguo Jianchuan YanjiuObjectiveThis 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 +6 more
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DronesThis paper investigates the use of adaptive beamforming algorithms for communication systems and sensing networks using motion-dynamic distributed random arrays. These distributed arrays include swarms of unmanned aerial vehicles (UAVs) and are formed by
Rio King +3 more
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Fast and robust adaptive beamforming method based on complex-valued RBF neural network
The Journal of Engineering, 2019 The adaptive beamforming is one of the key techniques for array signal processing. However, the matrix inversion operation in the existing methods will cost a large amount of computational complexity, which results in poor real-time processing ability ...
Yuqing Li, Xiaopeng Yang, Feifeng Liu
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