研究目的
Investigating the application of a new radio holography method for the diagnosis and adjustment of the RATAN-600 radio telescope antenna system.
研究成果
The radio optical modeling and experimental application of the new radio holography method demonstrate its effectiveness for the diagnosis and adjustment of the RATAN-600 radio telescope antenna system. High precision in the reference panel movement and short recording time are crucial for the method's repeatability and accuracy.
研究不足
The method requires high precision in the movement of the reference panel and good isolation between transmitting and receiving feeds. The accuracy of measurements is affected by the surface layer atmospheric turbulence and the background caused by random scattering.
1:Experimental Design and Method Selection:
The study employs a new radio holography method utilizing the radial movement of a reference panel for antenna diagnosis and adjustment.
2:Sample Selection and Data Sources:
The 'South + Flat' antenna system of the RATAN-600 radio telescope is used in autocollimation mode.
3:List of Experimental Equipment and Materials:
Includes the RATAN-600 radio telescope, reference panel, transmitting and receiving feeds, and a variable frequency drive (VFD) for the reference panel.
4:Experimental Procedures and Operational Workflow:
Involves geometric optical ray tracing, radio optical modeling of hologram recording, and field reconstruction with noise consideration.
5:Data Analysis Methods:
Fourier transform is used for field reconstruction from the hologram, with noise analysis to estimate measurement accuracy.
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