发明名称 |
METHOD AND APPARATUS FOR DETERMINING A DOPPLER CENTROID IN A SYNTHETIC APERTURE IMAGING SYSTEM |
摘要 |
<p>There is described a method for determining a Doppler centroid in a synthetic aperture imaging system, comprising: receiving raw data representative of electromagnetic signals reflected by a target area; selecting, among the raw data, at least two sets of sub-area data each representative of electromagnetic signals reflected by a corresponding sub-area of the target area, the sub-areas being substantially aligned along an azimuth axis of the target area and having a substantially identical surface area; for each one of the sets of sub-area data, generating an image corresponding to the corresponding sub-area; and measuring a mean intensity of the image; and estimating the Doppler centroid from a skew of an intensity function representing the mean intensity as a function of a look number for the corresponding sub-area.</p> |
申请公布号 |
WO2012000076(A1) |
申请公布日期 |
2012.01.05 |
申请号 |
WO2010CA01010 |
申请日期 |
2010.06.28 |
申请人 |
INSTITUT NATIONAL D'OPTIQUE;BERGERON, ALAIN;MARCHESE, LINDA |
发明人 |
BERGERON, ALAIN;MARCHESE, LINDA |
分类号 |
G01S13/90;G01S17/89 |
主分类号 |
G01S13/90 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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