Abstract
This paper presents some innovative design concepts for the low-cost remote sensing satellites, including: designing the special low-altitude orbit; implementing the in-flight fine refocusing to increase image quality; applying the radiation-hard FPGA (field-programmable gate array) for advanced data compression processors; using the time delay integration (TDI) sensor concept for reducing the camera aperture size. By implementing the calculated perturbation, the selected low-altitude orbit is capable to achieve daily revisit of Taiwan area and near-global coverage. By using commercial FPGA and technologies such as TDI and the refocusing, the smaller telescope aperture and the smaller satellite and thus cheaper cost can be met. The key advantages associated with these design concepts are introduced. The simulations of the mission performance for different approaches are demonstrated. The limitations of those concepts have also been discussed.
Presentation Slides
Innovative Design Concepts for the Low-Cost Remote Sensing Satellites
This paper presents some innovative design concepts for the low-cost remote sensing satellites, including: designing the special low-altitude orbit; implementing the in-flight fine refocusing to increase image quality; applying the radiation-hard FPGA (field-programmable gate array) for advanced data compression processors; using the time delay integration (TDI) sensor concept for reducing the camera aperture size. By implementing the calculated perturbation, the selected low-altitude orbit is capable to achieve daily revisit of Taiwan area and near-global coverage. By using commercial FPGA and technologies such as TDI and the refocusing, the smaller telescope aperture and the smaller satellite and thus cheaper cost can be met. The key advantages associated with these design concepts are introduced. The simulations of the mission performance for different approaches are demonstrated. The limitations of those concepts have also been discussed.
