Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Uniform Linear Array"”.
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A Bayesian Approach to Beamforming for Uncertain Direction -of -Arrival
… by the signal-to-noise ratio (SNR) of the array. Three efficient implementation algorithms for the Bayesian beamformer are developed by exploiting the structure of the steering vector of a uniform linear array (ULA). Each algorithm is analogous to a conventional filter design technique. The …
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CAPACITY ENHANCEMENT OF CDMA SYSTEM USING ANTENNA ARRAY
… code-division multiple access (CDMA) system with uniform linear array (ULA) at the base station (BS) [1 - 3]. An overall system outage probability is proposed as a capacity performance measure for multirate CDMA system with different service requirements among users. In this thesis, the …
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Rectangular waveguide narrow-wall longitudinal-aperture antenna arrays for high-power applications
… narrow-wall longitudinal-aperture antenna arrays for high power applications. The best narrow-wall longitudinal-aperture array designs in the work are called the double-narrow-wall-slot-HPB-array and the double-split-waveguide-HPB-array. The double-narrow-wall-slot-HPB-array …
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Machine Learning Methods for Super-Resolution in Sparse Sensor Arrays
… limited by their resolution, which increases linearly with the number of radar elements in a uniform linear array (ULA). In this work, neural networks are trained to approximate the signals from a large aperture array from the signals obtained from smaller aperture sub-arrays. The training set …
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Analysis of antenna beamforming architectures for wireless communications
… on a parameterized simulation in Matlab using a Uniform Linear Array (ULA) subject to co-channel interference, where performance metrics such as spectral efficiency, Signal-to-Interference-plus-Noise Ratio (SINR) evolution, and beam steering accuracy are evaluated. Additionally, signal distortion …
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Multiuser Multi Input Single Output (MU-MISO) Beamforming for 5G Wireless and Mobile Networks. A Road Map for Fast and Low Complexity User Selection, Beamforming Scheme Through a MU-MISO for 5G Wireless and Mobile Networks
… model of optimum beamformer (BF) based on the uniform linear array (ULA) is studied. The ULA is selected for its simplicity to analyse many scenarios and its importance to match the future network applied millimetre wave (mmWave) spectrum. The maximum beams generated by the ULA are explored in …
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S band narrow-wall slotted waveguide antenna For high-power applications
… narrow-wall longitudinal-aperture antenna arrays for S band high power applications. This antenna is designed to perform as a uniform array with minimum power reflected into the feed-waveguide. Based on the configuration, the double-narrow-wall-slot-array design is proposed for higher gain …
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Fundamental Limits and Joint Design of Wireless Systems with Vector Antennas
… Vector antennas satisfy this criteria, but a uniform linear array does not. We next consider the problem of positioning and direction-of-arrival (DOA) estimation with ultrawideband (UWB) vector antennas. Due to the wideband nature of the antenna response and directional sensitivity of vector …
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Exploitation of Modes in Circular Antenna Arrays
In this thesis modes on circular antenna arrays are investigated and exploited. Circular antenna arrays are specifically chosen because of their symmetric structure which enables continuity of surface currents and symmetric mutual coupling between elements of the array. This makes circular array …