Sensors with synthetic aperture processing, processing methods for the sensors, and programs

Title:

Sensors with synthetic aperture processing, processing methods for the sensors, and programs

Document Type and Number:

Japanese Patent JP6347554

Kind Code:

B2

Abstract:

Provided is a synthetic aperture processing sensor that, with a simple configuration and in a short amount of time, enables extraction, from within a synthetic aperture radar (SAR) image, of a point (CS) which has little phase fluctuation and is stable, and that enables highly accurate atmospheric correction processing. The synthetic aperture processing sensor comprises the following: a storage section (33) for storing a plurality of reception data items which correspond to reflective waves sequentially obtained at a plurality of data acquisition positions within the movement range of an antenna (antenna section (10)) along the movement direction of the antenna; a resampling processing section (321) that generates first and second measurement data by resampling the plurality of reception data items; a SAR processing section (322) that conducts SAR processing on the first and second measurement data to generate first and second complex SAR images which include amplitude information and phase information; an interference image generating section (complex coherence processing section (323)) for generating interference images using the complex coherence between the first and second complex SAR images; and an extraction section (CS extraction section (325)) that extracts, on the basis of the interference images, an interference point (CS)(interference/scattering point) which is a stable point.

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Inventors:

Motoyuki Sato
Masayoshi Matsumoto
Kazunori Takahashi

Application Number:

JP2015527217A

Publication Date:

June 27, 2018

Filing Date:

June 05, 2014

Export Citation:

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Assignee:

Tohoku University

International Classes:

G01S13/90; G01S15/89

Domestic Patent References:

JP2010281584A
JP2004191053A
JP63068980A
JP2015094657A
JP2015141124A

Attorney, Agent or Firm:

Eichi International Patent Office

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