Monitoring Infrastructure with Synthetic Aperture Radar (SAR) Satellite Service for Safe and Secure Society

被引：0

作者：

Shouhei, Ohno ^{[1
]}

Nana, Jumonji ^{[1
]}

Hiromichi, Hirata ^{[1
]}

Daisuke, Hashizume ^{[1
]}

Takakazu, Ishii ^{[1
]}

机构：

[1] Radio Application, Guidance and Electro-Optics Division, Japan

来源：

NEC Technical Journal | 2021年 / 16卷 / 01期

关键词：

Bridges - Deterioration - Geometrical optics - Preventive maintenance - Radar imaging - Satellites - Space-based radar - Time series analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Numerous satellites have been launched in the past few years, providing a broad array of invaluable data that is being used to support a rapidly expanding range of activities. For the most part, this data is optical image data, which cannot be collected under adverse weather conditions or at night. Recently, synthetic aperture radar (SAR) - which uses microwaves - has begun to attract attention as a possible solution. Among other things, SAR makes it possible to measure ground surface displacement with high precision across a wide range. NEC adapted this technology to create a service to visualize deterioration and displacement of buildings, bridges, and other infrastructure. However, because SAR image data does not provide an image comprehensible to the human eye, it must be used in conjunction with various analysis technologies. In this paper, we will introduce these add-on technologies and outline the infrastructure maintenance service offered by NEC. © 2021 NEC Mediaproducts. All rights reserved.

引用

页码：68 / 72