发明名称 |
Method for automatic focusing of radar or sonar imaging systems using high-order measurements |
摘要 |
Automatic focusing of radar or sonar imaging systems, for example, synthetic aperture radar (SAR) or synthetic aperture sonar (SAS) systems, is accomplished by using high order measurements, such as the quadruple product of the range compressed signal g(x). The phase error is estimated by a recursive or non-recursive algorithm from the phase of the quadruple product. The estimated phase error is applied to the range-compressed SAR or SAS image data which is then azimuth compressed to obtain the focused image data.
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申请公布号 |
US6037892(A) |
申请公布日期 |
2000.03.14 |
申请号 |
US19980085662 |
申请日期 |
1998.05.28 |
申请人 |
MULTISPEC CORPORATION |
发明人 |
NIKIAS, CHRYSOSTOMOS L.;MARMARELIS, VASILIS Z.;SHIN, DAE CHEOL |
分类号 |
G01S7/52;G01S13/90;G01S15/89;(IPC1-7):G01S13/90 |
主分类号 |
G01S7/52 |
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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