Development of low light level and wide dynamic range visible nephogram imaging technology

Wujun Xu; Hong Fan; Tangyou Liu; Jun Wei; Dongshan Weng

doi:10.1117/12.755660

29 November 2007 Development of low light level and wide dynamic range visible nephogram imaging technology

Wujun Xu, Hong Fan, Tangyou Liu, Jun Wei, Dongshan Weng

Proceedings Volume 6833, Electronic Imaging and Multimedia Technology V; 683329 (2007) https://doi.org/10.1117/12.755660
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

The novel visible nephogram imaging technology for polar orbit platform is demonstrated in the paper, and it could be operated in from quarter moon to noon sunlight. The critical technologies and theirs solutions of the novel nephograph are included: (i) the low light level imaging capability is achieved by the combination of time delay and integration charge coupled device (TDI CCD) with push-broom imaging method; (ii) the large field of view capability is implemented by the combination of 3 pieces of imaging module with smaller field of view; (iii) the wide dynamic range capability is achieved by the combination of TDI CCD with gradient neutral density filter (NDF). On the basis of the analysis and trade-off of system design, the prototype of novel visible nephograph for polar orbit platform is developed. The results of experiments and tests in ground demonstration are satisfying, and the nephograph prototype is mainly met the customer demand. In the end of paper, several problems and theirs solution of novel technology for space application are also mentioned.

Citation Download Citation

Wujun Xu, Hong Fan, Tangyou Liu, Jun Wei, and Dongshan Weng "Development of low light level and wide dynamic range visible nephogram imaging technology", Proc. SPIE 6833, Electronic Imaging and Multimedia Technology V, 683329 (29 November 2007); https://doi.org/10.1117/12.755660

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