发明名称 |
SYSTEM AND METHOD FOR CORRECTION OF TURBULENCE EFFECTS ON LASER OR OTHER TRANSMISSION |
摘要 |
An incoming laser beam is relayed to a steering mirror and a phase correction device. The beam is relayed from the phase correction device to a focal plane array and to a wavefront sensor (WFS). Low order steering mirror tilt corrections can be based on data from the focal plane array. The WFS outputs data on multiple channels to a field programmable gate array (FPGA), with each of the WFS channels corresponding to a subaperture of the beam wavefront. The FPGA calculates phase corrections for each of the subapertures and forwards those corrections to the phase correction device. The FPGA also calculates tilts for the steering mirror based on the WFS output data, which tilts can be used instead of tilts based on focal plane array data. The phase corrections may be based on modulo 2p phase error calculations and/or modal phase error calculations.
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申请公布号 |
WO2007089402(A3) |
申请公布日期 |
2008.06.05 |
申请号 |
WO2007US00543 |
申请日期 |
2007.01.10 |
申请人 |
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION;BARCHERS, JEFFREY, DANIEL |
发明人 |
BARCHERS, JEFFREY, DANIEL |
分类号 |
G01J1/20;G01B11/02 |
主分类号 |
G01J1/20 |
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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