Over-The-Air Calibration of a Dual-Beam Dual-Polarized 28-GHz Phased-Array Channel Sounder

2020 ◽  
Author(s):  
Sung Yun Jun ◽  
Derek Caudill ◽  
Jelena Senic ◽  
Camillo Gentile ◽  
Jack Chuang ◽  
...  
Keyword(s):  
Phased Array ◽  
Channel Sounder ◽  
Dual Beam ◽  
Dual Polarized

scholarly journals New Polarization Basis for Polarimetric Phased Array Weather Radar: Theory and Polarimetric Variables Measurement

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Jian Dong ◽  
Qingfu Liu ◽  
Xuesong Wang
Keyword(s):  
Phased Array ◽  
Time Series Data ◽  
Weather Radar ◽  
Element Model ◽  
Polarization Measurement ◽  
Series Data ◽  
Precipitation Estimation ◽  
Dual Polarized ◽  
Measurement Biases ◽  
Reception Mode

A novel scheme is developed for mitigating measurement biases in agile-beam polarimetric phased array weather radar. Based on the orthogonal Huygens source dual-polarized element model, a polarization measurement basis for planar polarimetric phased array radar (PPAR) is proposed. The proposed polarization basis is orthogonal to itself after a 90° rotation along the array’s broadside and can well measure the characteristics of dual-polarized element. With polarimetric measurements being undertaken in this polarization basis, the measurement biases caused by the unsymmetrical projections of dual-polarized element’s fields onto the local horizontal and vertical directions of radiated beam can be mitigated. Polarimetric variables for precipitation estimation and classification are derived from the scattering covariance matrix in horizontal and vertical polarization basis. In addition, the estimates of these parameters based on the time series data acquired with the new polarization basis are also investigated. Finally, autocorrelation methods for both the alternate transmission and simultaneous reception mode and the simultaneous transmission and simultaneous reception mode are developed.

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