HPT：一种用于微卫星遥感的高空间分辨率多光谱传感器。

HPT: A High Spatial Resolution Multispectral Sensor for Microsatellite Remote Sensing.

作者信息

Kurihara Junichi, Takahashi Yukihiro, Sakamoto Yuji, Kuwahara Toshinori, Yoshida Kazuya

机构信息

Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan.

Department of Aerospace Engineering, Tohoku University, Aramaki Aza Aoba 6-6-11, Sendai 980-8579, Japan.

出版信息

Sensors (Basel). 2018 Feb 18;18(2):619. doi: 10.3390/s18020619.

DOI:10.3390/s18020619

PMID:29463022

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5856108/

Abstract

Although nano/microsatellites have great potential as remote sensing platforms, the spatial and spectral resolutions of an optical payload instrument are limited. In this study, a high spatial resolution multispectral sensor, the High-Precision Telescope (HPT), was developed for the RISING-2 microsatellite. The HPT has four image sensors: three in the visible region of the spectrum used for the composition of true color images, and a fourth in the near-infrared region, which employs liquid crystal tunable filter (LCTF) technology for wavelength scanning. Band-to-band image registration methods have also been developed for the HPT and implemented in the image processing procedure. The processed images were compared with other satellite images, and proven to be useful in various remote sensing applications. Thus, LCTF technology can be considered an innovative tool that is suitable for future multi/hyperspectral remote sensing by nano/microsatellites.

摘要

尽管纳米/微卫星作为遥感平台具有巨大潜力，但光学有效载荷仪器的空间和光谱分辨率是有限的。在本研究中，为“崛起二号”微卫星开发了一种高空间分辨率多光谱传感器——高精度望远镜（HPT）。HPT有四个图像传感器：三个在光谱的可见光区域，用于合成真彩色图像，第四个在近红外区域，采用液晶可调谐滤波器（LCTF）技术进行波长扫描。还为HPT开发了波段间图像配准方法，并在图像处理过程中得以实现。将处理后的图像与其他卫星图像进行比较，证明其在各种遥感应用中很有用。因此，LCTF技术可被视为一种创新工具，适用于未来纳米/微卫星的多光谱/高光谱遥感。