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Title:
How to generate a synthetic-aperture-radar (SAR) picture on a satellite, an artificial satellite, or an aerial platform provided with the system which generates a plurality of SAR pictures on an artificial satellite or an aerial platform, and the system concerned
Document Type and Number:
Japanese Patent JP6066934
Kind Code:
B2
Abstract:
An apparatus is disclosed for a spaceborne or aerial platform having a frequency demultiplexer for frequency demultiplexing a signal corresponding to a range line or an azimuth line of SAR data, and including information about a plurality of target points, into a plurality of frequency channels, and a compression device for performing compression on each frequency channel, each frequency channel signal having information about the same target points. The frequency demultiplexer and the compression device can be implemented in hardware. The apparatus may be used for either or both of the range compression and the azimuth compression of a SAR arrangement on board a spaceborne or aerial platform and the SAR arrangement may generate a plurality of sub-images corresponding to the frequency channels from the SAR raw data. The sub-images may be combined by averaging in order to reduce the volume of memory required to store the SAR data.

Inventors:
アレクサンダー ウォーカー ウィシャート
Application Number:
JP2013557122A
Publication Date:
January 25, 2017
Filing Date:
March 09, 2012
Export Citation:
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Assignee:
エアバス ディフェンス アンド スペイス リミテッド
International Classes:
G01S13/90
Domestic Patent References:
JP2005024395A
JP6082386B2
JP62502144A
Foreign References:
US5646623
EP0695054A2
US5191344
EP0831611A2
Attorney, Agent or Firm:
龍華国際特許業務法人