منابع مشابه
Design of an L-Band Microwave Radiometer with Active Mitigation of Interference
For increased sensitivity in L-band radiometry, bandwidths on the order of 100 MHz are desirable. This will likely require active countermeasures to mitigate RFI. In this paper, we describe a new radiometer which coherently samples 100 MHz of spectrum and applies realtime RFI mitigation techniques using FPGAs. A field test of an interim version of this design in a radio astronomy observation co...
متن کاملSoil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration
Abstract— The SMAP microwave radiometer is a fully-polarimetric L-band radiometer flown on the SMAP satellite in a 6 AM/ 6 PM sun-synchronous orbit at 685 km altitude. Since April, 2015, the radiometer is under calibration and validation to assess the quality of the radiometer L1B data product. Calibration methods including the SMAP L1B TA2TB (from Antenna Temperature (TA) to the Earth’s surf...
متن کاملPolarimetric Microwave Radiometer Calibration
A polarimetric radiometer is a radiometer with the capability to measure the correlation information between vertically and horizontally polarized electric fields. To better understand and calibrate this type of radiometer, several research efforts have been undertaken. 1) All microwave radiometer measurements of brightness temperature (7B) include an additive noise component. The variance and ...
متن کاملGround-Based Microwave Radiometer Measurements
This particular site and time of year was chosen by ARM because it offers a high probability of clearsky, and also a wide range of integrated water vapor amounts. To supplement the routine observing capabilities during the WVIOP2000, a powerful array of tools for measuring water vapor was deployed at the SGP Central Facility area. A comprehensive suite of airborne in situ and ground-based remote
متن کاملL-band Interference Suppressing Radiometer (LISR) Ground-based Observations with JPL’s Passive-Active L/S Band (PALS) Sensor
2 System Configuration 3 2.1 PALS Radiometer Front End and Downconversion Stages . . . . . . . 3 2.2 PALS State Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 LISR Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 Capture Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.5 APB . . . . . . . . . . . . . . . . . . . . . . . . . ....
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ژورنال
عنوان ژورنال: ITM Web of Conferences
سال: 2019
ISSN: 2271-2097
DOI: 10.1051/itmconf/20193015028