2024年4月11日发(作者:乌鸿朗)
机载激光扫描仪的工作流程
英文回答:
Airborne Laser Scanning (ALS) Workflow.
Airborne laser scanning (ALS), also known as lidar, is
a remote sensing technology that uses a laser to measure
the distance between a sensor and the ground. The data
collected by ALS can be used to create highly accurate
topographic maps, digital elevation models (DEMs), and
other geospatial data products.
The ALS workflow typically consists of the following
steps:
1. Planning and data acquisition. The first step is to
plan the ALS survey, which includes determining the flight
lines, flight altitude, and laser pulse rate. Once the
survey plan is complete, the ALS data is acquired using a
specialized aircraft equipped with a laser scanner.
2. Data processing. The raw ALS data is then processed
to remove noise and artifacts, and to calibrate the data to
the ground. The processed data is then used to create a DEM,
which is a digital representation of the terrain.
3. Data analysis and interpretation. The DEM can be
used for a variety of purposes, including topographic
mapping, land use planning, and environmental modeling. The
DEM can also be used to derive other geospatial data
products, such as slope maps and aspect maps.
ALS is a powerful tool for mapping and surveying the
Earth's surface. The data collected by ALS can be used to
create accurate and detailed topographic maps, DEMs, and
other geospatial data products that can be used for a
variety of applications.
中文回答:
机载激光扫描仪的工作流程。
机载激光扫描仪(ALS),也称为激光雷达,是一种遥感技术,
它使用激光测量传感器和地面之间的距离。ALS收集的数据可用于
创建高精度的地形图、数字高程模型(DEM)和其他地理空间数据产
品。
ALS 工作流程通常包括以下步骤:
1. 规划和数据采集。第一步是规划 ALS 测量,包括确定航线、
飞行高度和激光脉冲率。测量计划完成后,使用配备激光扫描仪的
专用飞机采集 ALS 数据。
2. 数据处理。然后处理原始 ALS 数据以去除噪声和伪影,并
将数据校准到地面。经过处理的数据随后用于创建 DEM,它是地形
的数字表示。
3. 数据分析和解释。DEM 可用于各种用途,包括地形制图、土
地利用规划和环境建模。DEM 还可用于推导出其他地理空间数据产
品,例如坡度图和坡向图。
ALS 是用于测绘和勘测地球表面的强大工具。ALS 收集的数据
可用于创建准确且详细的地形图、DEM 和其他地理空间数据产品,
可用于各种应用。
2024年4月11日发(作者:乌鸿朗)
机载激光扫描仪的工作流程
英文回答:
Airborne Laser Scanning (ALS) Workflow.
Airborne laser scanning (ALS), also known as lidar, is
a remote sensing technology that uses a laser to measure
the distance between a sensor and the ground. The data
collected by ALS can be used to create highly accurate
topographic maps, digital elevation models (DEMs), and
other geospatial data products.
The ALS workflow typically consists of the following
steps:
1. Planning and data acquisition. The first step is to
plan the ALS survey, which includes determining the flight
lines, flight altitude, and laser pulse rate. Once the
survey plan is complete, the ALS data is acquired using a
specialized aircraft equipped with a laser scanner.
2. Data processing. The raw ALS data is then processed
to remove noise and artifacts, and to calibrate the data to
the ground. The processed data is then used to create a DEM,
which is a digital representation of the terrain.
3. Data analysis and interpretation. The DEM can be
used for a variety of purposes, including topographic
mapping, land use planning, and environmental modeling. The
DEM can also be used to derive other geospatial data
products, such as slope maps and aspect maps.
ALS is a powerful tool for mapping and surveying the
Earth's surface. The data collected by ALS can be used to
create accurate and detailed topographic maps, DEMs, and
other geospatial data products that can be used for a
variety of applications.
中文回答:
机载激光扫描仪的工作流程。
机载激光扫描仪(ALS),也称为激光雷达,是一种遥感技术,
它使用激光测量传感器和地面之间的距离。ALS收集的数据可用于
创建高精度的地形图、数字高程模型(DEM)和其他地理空间数据产
品。
ALS 工作流程通常包括以下步骤:
1. 规划和数据采集。第一步是规划 ALS 测量,包括确定航线、
飞行高度和激光脉冲率。测量计划完成后,使用配备激光扫描仪的
专用飞机采集 ALS 数据。
2. 数据处理。然后处理原始 ALS 数据以去除噪声和伪影,并
将数据校准到地面。经过处理的数据随后用于创建 DEM,它是地形
的数字表示。
3. 数据分析和解释。DEM 可用于各种用途,包括地形制图、土
地利用规划和环境建模。DEM 还可用于推导出其他地理空间数据产
品,例如坡度图和坡向图。
ALS 是用于测绘和勘测地球表面的强大工具。ALS 收集的数据
可用于创建准确且详细的地形图、DEM 和其他地理空间数据产品,
可用于各种应用。