In principle, the larger a telescope aperture, the better is its inherent resolution. However, in practice, making exstremely large telescope is confronted with some difficult problems in technology and finance. Interferometry is the proven approach to solve these problems. By using interferometry telescope, higher frequency information corresponding to the longest baseline can be obtained; however, the U-V plane is just partially covered. In order to fill the U-V plane as completely as possible, we can change the configuration of apertures, or rotate mask in its own plane. Then the integrated image with full U-V coverage can be reconstructed by combining interferograms with partial U-V coverage. Image reconstruction of Fizeau Interferometer is studied in this paper. By changing the configuration of apertures, we can sampling the (u,v) plane as completely as possible. A mask with three holes rotates thrice in its own plane, representing three groups of apertures configuration. By using this mask, some double-stars are observed on 1 meter telescope and reconstructed by high-resolution reconstruction method, filtering correlation image alignment, and deconvolution summarization interferogram combination. At last, a comparison between the results reconstructed and the results from WDS catalogue showed good consistency. The plan of this thesis can be summarized as follows. Chapter 1 introduces the development of astronomical optical interferometer. Chapter 2 explains the principle of interferometry imaging, and does some simulation experiments to analyze the model of interferometry imaging. Chapter 3 is devoted to image reconstruction of Fizeau Interferometer. Firstly, interferograms with partial U-V coverage are reconstructed by Iterative Shift-and-Add Technique (ISA). Secondly, we put forward the filtering correlation method to adjust interferograms in alignment Finally, the combination of interferograms and the seeing influence are further discussed. Chapter 4 describes the observation by 1 meter telescope in Yunnan observatory, and presents some reconstructed results and discussion.
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