Design aspects of the experimental SAR/MTI system PAMIR

Author

Wilden, H. ; Saalmann, O. ; Poppelreuter, B. ; Letsch, K. ; Brenner, A.

Author_Institution

FGAN-FHR, Wachtberg

fYear

2005

fDate

6-7 Oct. 2005

Firstpage

25

Lastpage

28

Abstract

The radar frontend of the PAMIR SAR/MTI imaging radar, an experimental active phased array system with a very high simultaneous bandwidth of 1.82 GHz in X-band and the mechanical properties of the pod are described. The broadband beamforming together with azimuth wide scan capabilities (gesplusmn 45deg@1.82 GHz bandwidth of the 4.25 m antenna array) ask for the implementation of switchable true time delay networks with time increments equivalent to a fraction of a wavelength. Vibration properties of the pod and its influence on the radiation pattern have been analysed. PAMIR serves as ideal airborne platform for future broadband SAR/MTI research activities, for example in the area of extended SAR modes like IfSAR with very high resolution (10 times 10 cm), ISAR imaging of ground moving targets, multichannel scan-MTI with STAP and ECCM for SAR and MTI

Keywords

active antenna arrays; antenna phased arrays; antenna radiation patterns; phased array radar; radar antennas; radar imaging; synthetic aperture radar; ISAR imaging; SAR/MTI system PAMIR; active phased array system; broadband beamforming; ground moving target indication; phased array multifunctional imaging radar; radar frontend; radiation pattern; switchable true time delay networks; Antenna arrays; Array signal processing; Azimuth; Bandwidth; Broadband antennas; Mechanical factors; Phased arrays; Radar antennas; Radar imaging; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2005. EURAD 2005. European

Conference_Location

Paris

Print_ISBN

2-9600551-3-6

Type

conf

DOI

10.1109/EURAD.2005.1605555

Filename

1605555