RADIOMETER ARRAY CALIBRATION WITH PARTIAL SPATIAL INFORMATION MISSING
نویسندگان
چکیده
منابع مشابه
Phased Array Radiometer Calibration Using a Radiated Noise Source
Electronic beam steering capability of phased array antenna systems offer significant advantages when used in real aperture imaging radiometers. The sensitivity of such systems is limited by the ability to accurately calibrate variations in the antenna circuit characteristics. Passive antenna systems, which require mechanical rotation to scan the beam, have stable characteristics and the noise ...
متن کاملRobust parallel robot calibration with partial information
A new algorithm for calibrating Gough platforms is proposed. It requires internal sensor measurements and only the position information provided by external sensors. It removes the need to measure orientation, which is intricate and error-prone, by algebraic elimination. This approach, relying on resultants and dialytic elimination, produces an equivalent, yet simpler, set of equations. Numeric...
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 کاملMultichannel radiometer calibration: a new approach.
The error in irradiance measured with Sun-calibrated multichannel radiometers may be large when the solar zenith angle (SZA) increases. This could be particularly detrimental in radiometers installed at mid and high latitudes, where SZAs at noon are larger than 50 degrees during part of the year. When a multiregressive methodology, including the total ozone column and SZA, was applied in the ca...
متن کاملAquarius Radiometer: Pre-launch Performance and Calibration
The NASA-CONAE Aquarius/SAC-D observatory for measuring the changing global distribution of sea surface salinity at unprecedented accuracy from space is scheduled to launch in 2010 [1]. The Aquarius Instrument comprises a 1.4 GHz radiometer and a 1.2 GHz scatterometer, both of which share a common reflector antenna, feed network, and other electronics. The ability to measure sea surface salinit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JOURNAL OF INFRARED AND MILLIMETER WAVES
سال: 2010
ISSN: 1001-9014
DOI: 10.3724/sp.j.1010.2010.00236