The special project of “Earth Observation and Navigation” passed the mid-term inspection

[ Instrument network instrument research and development ] Recently, the national key research and development plan "Earth Observation and Navigation" key project "Stationary Orbit High Resolution Light Imaging Camera System Technology" undertaken by Chengguang has passed the mid-term inspection in Chengdu. More than 40 members of the “Earth Observation and Navigation” special expert group experts, peer experts, project leaders, research participants of the project and the key special management office of “Earth Observation and Navigation” (hereinafter referred to as “special office”) participated. This meeting.

On February 19, 2016, the Ministry of Science and Technology issued a notice of 10 key special projects such as “Earth Observation and Navigation” in 2016. The special project focuses on the new mechanism, the new system, advanced remote sensing technology, space radiation measurement benchmark and transmission calibration technology, and high-performance air and space integration network monitoring system technology. A total of 45 key tasks are deployed, with an implementation period of 5 years. Among them, the geostationary orbit high-resolution light imaging camera system technology is listed as a key technology project.

The research content of the high-resolution light imaging camera system technology of the geostationary orbit is mainly: the static orbit optical camera with a resolution of not less than 2.5m for various regional monitoring tasks requiring high spatial resolution and high aging observation capability. System technology research, including the overall technology of the geostationary orbit space light camera system, camera adaptive optical detection and control technology, stationary orbit high-resolution camera image stabilization technology, etc.; The key technologies are used for ground test verification, providing technical support for the development of geostationary orbit high-resolution optical satellites, serving the needs of major applications such as high-resolution land and sea safety monitoring and sudden disaster detection in China.

This inspection uses a combination of meeting and on-site inspection. At the meeting, the project leader Yang Hu researched the project progress and stage results to the expert group. After listening to the report and watching the prototype on the spot, the expert group agreed that the project completed the medium-term work specified in the mission book and reached the mid-term assessment target. At the same time, it is suggested that the project team pay full attention to the risk of system integration and related key component manufacturing, increase the intensity and progress of the Ф1.5m ground principle prototype, and attach importance to the demonstration and review of the project results acceptance test method.

The project is based on the high-resolution light optical imaging camera system of the geostationary orbit, and breaks through the bottleneck of its core nanostructure film processing technology for “thin film optical imaging technology”. The technology uses a thin film lens instead of the traditional optical imaging system to realize the geostation imaging of the geostationary wide-band high-resolution optical camera system, which can effectively reduce the system load while achieving high-resolution imaging, and has the characteristics of easy copying, etc., which greatly reduces the Space observation satellite design and processing costs.