Polarimetric calibration of a coherent measurement radar
The polarimetry problem (the measurement of the radar-cross-section polarization scattering matrix) is described. Two methods of calibrating a polarimetric radar are outlined. The first is a general multiple-calibration-target (MCT) method applicable to almost any radar system. The second is a simple, single-calibration-target (SCT) method applicable to systems which use a single antenna for both transmit/receive and a reciprocal RF network. The performance of the MCT method is examined through the use of Monte Carlo simulations. Finally, the SCT method is applied to measurements from the SCATTER facility, demonstrating about 40 dB isolation between polarization components in the frequency domain and in excess of 50 dB in the range domain.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5978243
- Report Number(s):
- SAND-91-2150; ON: DE92004114
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420200 -- Engineering-- Facilities
Equipment
& Techniques
661300* -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANALYTICAL SOLUTION
CALIBRATION
MATRICES
MEASURING INSTRUMENTS
MONTE CARLO METHOD
ORIENTATION
POLARIMETRY
POLARIZATION
RADAR
RANGE FINDERS