Modeling Millimeter and Centimeter Wavelength Fields over the Sea in the Analysis of Elevation Angle Estimation Methods for Low-Flying Aerial Targets

2003 ◽  
Vol 59 (3-4) ◽  
pp. 19
Keyword(s):  
Elevation Angle ◽  
Estimation Methods ◽  
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
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