A statistical model for the error bounds of an active phased array antenna for SAR applications

Author

Snoeij, Paul ; Vellekoop, Arjen R.

Author_Institution

Lab. for Telecommun. & Remote Sensing Technol., Delft Univ. of Technol., Netherlands

Volume

30

Issue

4

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

736

Lastpage

742

Abstract

A model for the theoretical error bounds for the radiometric calibration of SAR imagery is described. The model is then applied utilizing the radar system parameters that will be used in the project PHARUS (Phased Array Universal SAR), a Dutch polarimetric airborne C -band universal SAR, which is currently under construction. An error model for the phased array antenna pattern is presented. This model was applied to a 16×8 phased array antenna to determine the influence of errors in the T/R modules and angle variations of the beam direction. For a wide range of variances the model is in good agreement with the exact solution, but with far less computer effort. Other, more complicated, antennas can be analyzed in a straightforward way. The model can be used as a design tool for digital phased array radar

Keywords

active antennas; antenna phased arrays; geophysical equipment; geophysical techniques; microwave antenna arrays; radar antennas; remote sensing by radar; synthetic aperture radar; Dutch polarimetric airborne C-band universal SAR; PHARUS; active phased array antenna; error bounds; geophysical measurement; imagery; land surface; model; radiometric calibration; remote sensing; statistical model; synthetic aperture radar; technique; Airborne radar; Antenna arrays; Calibration; Directive antennas; Phased arrays; Radar antennas; Radar imaging; Radar polarimetry; Radiometry; Synthetic aperture radar;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.158867

Filename

158867