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HPT: A High Spatial Resolution Multispectral Sensor for Microsatellite Remote Sensing
Junichi Kurihara1, Yukihiro Takahashi2, Yuji Sakamoto3
1Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan. kurihara@sci.hokudai.ac.jp.
Sensors (Basel, Switzerland)
|February 22, 2018
Summary
A new High-Precision Telescope (HPT) for microsatellites enables high-resolution multispectral remote sensing. Liquid crystal tunable filter (LCTF) technology offers innovative capabilities for future space-based imaging applications.
Area of Science:
- Earth and Space Sciences
- Optical Engineering
- Remote Sensing Technology
Background:
- Nano/microsatellites offer potential for remote sensing but face limitations in spatial and spectral resolution.
- Existing optical payload instruments on small satellites often have restricted capabilities.
Purpose of the Study:
- To develop a high spatial resolution multispectral sensor for the RISING-2 microsatellite.
- To evaluate the utility of liquid crystal tunable filter (LCTF) technology for advanced remote sensing applications on small satellite platforms.
Main Methods:
- Development of the High-Precision Telescope (HPT) with four image sensors, including three for visible light and one for near-infrared using LCTF technology.
- Implementation of band-to-band image registration methods for precise data alignment.
- Processing and comparison of HPT-generated images with existing satellite imagery.
Main Results:
- The High-Precision Telescope (HPT) was successfully developed and integrated into the RISING-2 microsatellite.
- Processed multispectral images demonstrated high spatial resolution and utility in various remote sensing applications.
- Band-to-band image registration methods proved effective for accurate data fusion.
Conclusions:
- Liquid crystal tunable filter (LCTF) technology is a viable and innovative tool for future multi/hyperspectral remote sensing missions utilizing nano/microsatellites.
- The developed HPT sensor enhances the capabilities of small satellite platforms for detailed Earth observation.
- The findings support the advancement of compact, high-performance optical instruments for space-based remote sensing.
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