Measurement of modulation transfer function for space remote sensing TDDICCD camera

Shiliang Lv; Xiaoqian Wang; Jinguo Liu

doi:10.1117/12.2256492

7 November 2016 Measurement of modulation transfer function for space remote sensing TDDICCD camera

Shiliang Lv, Xiaoqian Wang, Jinguo Liu

Proceedings Volume 10141, Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016; 101411W (2016) https://doi.org/10.1117/12.2256492
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held July 2016, 2016, Changchun, China

Abstract

Modulation Transfer Function(MTF) is an important imaging quality indicator of optical system, in order to evaluate the imaging quality for a space remote sensing TDICCD camera, the MTF testing system，including hardware components and software components, was established based on refocusing system. Firstly, the design of Three Mirror Anastigmatic (TMA) optical system and the long interlace assemble TDICCD focal plane were introduced. Secondly, the construction and the schematic diagram of the refocusing system was presented in detail, as well as the relationship between refocusing range and position encoder for interlace assemble TDICCD focal plane. Thirdly, the schematic diagram of the MTF testing system was given, and the relationship between MTF and contrast transfer function(CTF) was discussed. Finally, on the basis of the schematic diagram of CTF, the transfer process of a square wave target was investigated. The testing results indicate that the MTF testing system can measure the CTF of every TDICCD on the focal plane in the focusing range, which meet the requirement of evaluation of imaging quality for a space TDICCD camera.

Citation Download Citation

Shiliang Lv, Xiaoqian Wang, and Jinguo Liu "Measurement of modulation transfer function for space remote sensing TDDICCD camera", Proc. SPIE 10141, Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016, 101411W (7 November 2016); https://doi.org/10.1117/12.2256492

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