Light weight sensors for the autonomous asteroid landing of MUSES-C mission
Light weight sensors for the autonomous asteroid landing of MUSES-C mission
复制标题
用于 MUSES-C 任务自主小行星着陆的轻型传感器
DOI：
10.1016/s0094-5765(02)00178-9
复制
发表时间：
2003
影响因子：
3.5
通讯作者：
T. Mizuno
中科院分区：
文献类型：
--
作者：
T. Hashimoto;T. Kubota;T. Mizuno
小行星采样和返回航天器MUSES-C拥有一些新开发的轻型光学传感器，以接近、交会和着陆小行星1989 ML。ONC-T是一种多光谱光学波段相机，具有8个滤光片，5.7°×5.7° FOV和20 arcsec/pixel分辨率。它用于科学观测和对小行星进行精确的全球测绘，以选择着陆点。ONC-W1和W2都是具有60°×60° FOV的广角相机，用于机载自主制导。激光雷达用于测量到小行星表面50公里至50米的距离。LRF使用四个波束在100米以内的距离提供到小行星表面的相对距离和姿态。四套FBS探测太阳能电池板下的障碍物，以避免意外碰撞表面。本文在简要描述交会着陆方案后，给出了各传感器的目标、要求和设计指标。文中还介绍了传感器的研制现状、部分样机的功能和性能测试结果。
Asteroid sample and return spacecraft MUSES-C has some newly-developed light weight optical sensors, in order to approach, rendezvous with, and land on the asteroid 1989ML. ONC-T is a multi-spectrum optical band camera with 8 filters, 5.7°×5.7° FOV , and 20 arcsec/pixel resolution. It is used for scientific observation and the precise global mapping of the asteroid to select a landing point. Both ONC-W1 and W2 are wide angle camera with 60°×60° FOV and used for autonomous guidance onboard. LIDAR is used for measurement of distance to the asteroid surface from 50 km to 50 m . LRF provides relative distance and attitude to the asteroid surface using four beams at the range less than 100 m . Four sets of FBS detect obstacle under solar cell panels to avoid unexpected collision to the surface. In this paper, after brief description of rendezvous and landing scenario, aims, requirements, and design specifications of each sensor are shown. Present status of development, function and performance test results of some prototype sensors are also reported.