scholarly journals Joint Azimuth and Elevation Angle Estimation Using Incomplete Data Generated by a Faculty Antenna Array

2012 ◽  
Vol 3 (6) ◽  
pp. 99-114 ◽  
Author(s):  
Yerriswamy T
Keyword(s):  
Antenna Array ◽  
Incomplete Data ◽  
Elevation Angle ◽  
Angle Estimation

scholarly journals JOINT AZIMUTH AND ELEVATION ANGLE ESTIMATION USING MATRIX COMPLETION METHOD

2017 ◽  
Vol 57 ◽  
pp. 197-203
Author(s):  
Peixiang Tan ◽  
Yuntao Wu ◽  
Ge Yan ◽  
Jieyi Deng
Keyword(s):  
Matrix Completion ◽  
Elevation Angle ◽  
Angle Estimation

scholarly journals Low Elevation Angle Estimation with Range Super-Resolution in Wideband Radar

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3104 ◽  
Author(s):  
Sha Huan ◽  
Man Zhang ◽  
Gane Dai ◽  
Huaguo Gan
Keyword(s):  
Grazing Angle ◽  
Elevation Angle ◽  
Super Resolution ◽  
Robust Estimator ◽  
Frequency Diversity ◽  
Angle Estimation ◽  
Structure Relationship ◽  
Radar Waveforms ◽  
Radar Applications ◽  
Wideband Radar

Height detection of a low elevation angle target is crucial in radar applications. Due to the presence of the multiple path reflections, elevation angle estimation is difficult with conventional narrowband radar waveforms. The reflection ground area parameters are especially hard to obtain for modeling. In this paper, we proposed a wideband, low elevation angle estimator based on range super-resolution, achieving a high robustness to variations in reflection coefficients. A relaxation (RELAX) algorithm was applied as the range super-resolution algorithm to separate the direct target echo and the reflected signal thanks to the relatively abundant frequency diversity. The grazing angle was obtained by synthesizing the steering vector of the direct signal and the range structure relationship between the two signal components. Theoretical analysis and simulation results confirmed the improved behavior of the proposed robust estimator in contrast to other conventional algorithms.

Improved Azimuth/Elevation Angle Estimation Algorithm for Three-Parallel Uniform Linear Arrays

2015 ◽  
Vol 14 ◽  
pp. 329-332 ◽  
Author(s):  
Hua Chen ◽  
Chunping Hou ◽  
Qing Wang ◽  
Ling Huang ◽  
Weiqing Yan ◽  
...  
Keyword(s):  
Elevation Angle ◽  
Estimation Algorithm ◽  
Angle Estimation ◽  
Linear Arrays

scholarly journals Design of Adaptive Planar Microstrip Patch Array Operating at 28 GHz for 5G Smart Mobile System

2019 ◽  
Vol 4 (2) ◽  
pp. 158-172
Author(s):  
Zhwan Mohammed Rashid ◽  
Asaad M. Jassim Al-Hindawi
Keyword(s):  
Antenna Array ◽  
Communication Systems ◽  
Smart Antenna ◽  
Elevation Angle ◽  
Antenna System ◽  
Main Beam ◽  
Least Mean Square ◽  
Mobile System ◽  
Microstrip Patch ◽  
Smart Mobile

Smart antenna system has been studied extensively for the fifth generation of wireless communication systems, because it has made a system better performance of higher capacity and coverage as well as of power-saving. The present paper introduces a design of planar microstrip patch antenna array for a smart mobile system operating at 28 GHz. The present smart antenna has an adaptive radiation pattern that adjusts its main beam automatically to the desired direction by following the signal environment. This is based on the processing of an algorithm called the Least Mean Square (LMS) resulting in a change in the magnitude and phase of the feeding current for each element in the antenna array. From the obtained results, the main beam can be steered 180 degrees in the phi (azimuth) plane at a constant theta (elevation) angle. The planar antenna array was designed and simulated using CST Microwave Studio and MATLAB software that is used to find the required exciting current for each element. It is found that the antenna bandwidth is greater than 1 GHz while its gain is about 21 dB.

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