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Surface error diagnosis of large reflector antenna with microwave holography based on active deformation

Author:
Ye, Qian   Liu, Kangkang   Meng, Guoxiang  


Journal:
Electronics Letters


Issue Date:
2016


Abstract(summary):

Microwave holographic techniques have been used widely in the radio astronomy area. A new surface diagnosis method based on the phase-retrieval holograph algorithm is proposed. This approach focuses on a novel application of the active deformation. Multiple far-field patterns are measured in focus by adjusting the deformation of the main reflector actively. Using the amplitude of far-field patterns, the phase distribution of the aperture can be retrieved by the phase-retrieval technique. Simulation results demonstrate the feasibility of this method.



Page:
12-13


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