Development of a calibration workstation for SIR-CThe paper describes the status of a comprehensive synthetic aperture radar (SAR) software package developed specifically to aid the calibration of a multifrequency and multipolarization radar like the Shuttle Imaging Radar, SIR-C. The primary data types processed are engineering telemetry, point targets (corner reflectors and polarimetric active radar calibrators), distributed targets (clutter), tone-generators, and ground receivers. The parameters derived to aid the calibration of the production processor include measurements of relative radiometric channel to channel imbalance, absolute calibration constants, antenna pattern corrections, noise levels, polarimetric cross-talk, and geometric offsets. The software reports standard performance measurements such as resolution, peak and integrated sidelobes, radiometric response accuracy, and geometrical distortions such as scale errors, position bias and standard deviation, and image skew. Furthermore, the inclusion of software to allow updates of the shuttle-state vector (position and velocity) is considered.
Document ID
19920052513
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Madsen, S. N. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Dubois, P. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Freeman, A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Norikane, L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Shaffer, S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Shimada, J. (JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Communications And Radar
Meeting Information
Meeting: IGARSS ''91: Annual International Geoscience and Remote Sensing Symposium