Challenges in application of Active Cold Loads for microwave radiometer calibration

2012 ◽  
Author(s):  
Sten S. Sobjaerg ◽  
Jan E. Balling ◽  
Niels Skou
Keyword(s):  
Microwave Radiometer ◽  
Radiometer Calibration

A New Linearly Polarized Microwave Radiometer Calibration Source

2012 ◽  
Vol 500 ◽  
pp. 341-347
Author(s):  
Xin Biao Wang ◽  
Chang Zeng ◽  
Jing Li ◽  
Jing Shan Jiang
Keyword(s):  
Real Time ◽  
Microwave Radiometer ◽  
Noise Temperature ◽  
Calibration Method ◽  
Calibration Source ◽  
Radiometer Calibration ◽  
Time Calibration ◽  
Linearly Polarized ◽  
Calibration Device

This paper introduces a calibration device for microwave (millimeter and submillimeter) radiometer. The device can provide the microwave radiometer continuously variable linearly polarized noise temperature. The paper also introduces a real-time calibration method to achieve the microwave radiometer calibration, and the test of microwave radiometer sensitivity and linearity.

Parametric optimization of microwave radiometer calibration load

2008 ◽  
Author(s):  
Hui Zhang ◽  
Dirk Plettemeier ◽  
Jungang Miao ◽  
Wu Bo Chun ◽  
Bai Ming
Keyword(s):  
Parametric Optimization ◽  
Microwave Radiometer ◽  
Radiometer Calibration

scholarly journals One-Point Microwave Radiometer Calibration

2020 ◽  
Vol 17 (3) ◽  
pp. 461-463
Author(s):  
Ignasi Corbella ◽  
Francesc Torres ◽  
Josep Closa ◽  
Nuria Duffo ◽  
Israel Duran ◽  
...  
Keyword(s):  
Microwave Radiometer ◽  
Radiometer Calibration

A winding machine for polarized wire grid of microwave radiometer calibration

2018 ◽  
Vol 233 (5) ◽  
pp. 1916-1925
Author(s):  
Yong Hu ◽  
Xin Shen ◽  
Ye Hu ◽  
Maosen Wang ◽  
Qichao Zhang ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Microwave Radiometer ◽  
Low Energy ◽  
Wire Grid ◽  
Radiometer Calibration ◽  
Winding Machine ◽  
Parameters Calculation

Polarized wire grid has been used as a low-energy polarization separator in many calibration systems. A novel machine was developed for winding the polarized wire grids with different sizes and shapes. In this paper, the process of design including parameters calculation, structural analysis, and the calibration for the winding device is presented. Finally, taking an oval grid as an example, the fabrication and the testing results is shown. A 250 mm×350 mm oval polarized wire grid is fabricated by using this machine, with 0.1 mm diameter molybdenum wires at the distance of 0.3 ± 0.02 mm. And it achieved the 01. mm flatness requirement. The machine used is robust and can be easily extended to even 200 × 200 mm2 – 500 mm × 500 mm grids with 0.08–0.2 mm diameter wires at the distance of 0.1–0.5 mm.

SMAP Microwave Radiometer Calibration Revisit

2019 ◽  
Author(s):  
Jinzheng Peng ◽  
Sidharth Misra ◽  
Jeffrey Piepmeier ◽  
Simon Yueh ◽  
Emmanuel Dinnat ◽  
...  
Keyword(s):  
Microwave Radiometer ◽  
Radiometer Calibration

Stable Targets for Spaceborne Microwave Radiometer Calibration

2006 ◽  
Author(s):  
E.G. Njoku ◽  
S.K. Chan ◽  
R.L. Armstrong ◽  
M.J. Brodzik ◽  
M.H. Savoie ◽  
...  
Keyword(s):  
Microwave Radiometer ◽  
Radiometer Calibration
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