Onboard passive wide-aperture noise generators (BSHI)
on-board calibration of satellite MW radiometers for remote sensing of the Earth (ERS) - measuring instruments for land, atmosphere, and ocean parameters.
The material of the radiating element ("black body") is made of conical single crystal silicon rods. The radiating element includes seven small-sized vibration-resistant platinum resistance thermometers.
|Frequency range, GHz||from 20 to 220|
|Reproducible noise temperature levels, К||from 220 to 320|
|Error in measuring the thermodynamic temperature of a silicon radiating element, K||0,1|
|Error of the reproduction of noise temperature unit, К||1,5|
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