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This paper proposes a new method of aperture synthetizing in digital
holography based on the principle of holography. In the new method
aperture synthetizing is achieved by reconstructing each
sub-hologram respectively, firstly, moving each reconstructed wave
field referred to the benchmark reconstructed wave field according
to the relationship between spacial motion and frequency shift, and
finally splicing them by using superposition. Two different
recording ways, using plane wave to record and using spherical wave
to record, are analyzed, and their moving formula is deduced, too.
Simulation and experiment are done. The results show that in
comparison with the traditional method of aperture synthetizing in
digital holography, the new method can decrease calculation and save
reconstructed time obviously which has better applicability. 相似文献
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