Accession Number : ADA213438


Title :   Polarimetric SAR Antenna Characterization


Descriptive Note : Project rept.


Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB


Personal Author(s) : Barnes, Richard M ; Blejer, Dennis J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a213438.pdf


Report Date : 28 Jul 1989


Pagination or Media Count : 26


Abstract : A procedure is described for obtaining the two-way polarimetric properties of a SAR antenna from one-way measurements in a compact antenna test range. The two-way properties are determined by involving reciprocity and computing a polarization distortion matrix (PDM). Next, one-way antenna-only measurements are combined with boresight measurements of the complete system to find an overall PDM. Polarimetric distortions caused by the antenna can be compensated using the inverse of the PDM; however, the Advanced Detection Technology Sensor antenna was found to have adequately low crosspolarization without the need for crosspolarization compensation.


Descriptors :   *POLARIMETRY , *ANTENNAS , *BORESIGHTING , *DISTORTION , MEASUREMENT , TEST FACILITIES


Subject Categories : Electrical and Electronic Equipment
      Active & Passive Radar Detection & Equipment
      Radiofrequency Wave Propagation


Distribution Statement : APPROVED FOR PUBLIC RELEASE