| タイトル | Ka-band Digitally Beamformed Airborne Radar Using SweepSAR Technique |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130009395 |
| 著者（英） | Ghaemi, Hirad; Quaddus, Momin; Lin, Lung-Sheng S.; Heavey, Brandon A.; Sadowy, Gregory A.; Chuang, Chung-Lun |
| 著者所属（英） | California Inst. of Tech. |
| 発行日 | 2012-12-01 |
| 言語 | eng |
| 内容記述 | A paper describes a frequency-scaled SweepSAR demonstration that operates at Ka-Band (35.6 GHz), and closely approximates the DESDynl mission antenna geometry, scaled by 28. The concept relies on the SweepSAR measurement technique. An array of digital receivers captures waveforms from a multiplicity of elements. These are combined using digital beamforming in elevation and SAR processing to produce imagery. Ka-band (35.6 GHz) airborne SweepSAR using array-fed reflector and digital beamforming features eight simultaneous receive beams generated by a 40-cm offset-fed reflector and eight-element active array feed, and eight digital receiver channels with all raw data recorded and later used for beamforming. Illumination of the swath is accomplished using a slotted-waveguide antenna radiating 250 W peak power. This experiment has been used to demonstrate digital beamforming SweepSAR systems. |
| NASA分類 | Man/System Technology and Life Support |
| レポートNO | NPO-48376 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
