99 LiDAR

Question 1

Kepanjangan LiDAR

Answer 1

Light/Laser Detection and Ranging

Also referred to Laser Scanning

Question 2

LiDAR uses ……. In the … and… to measure …

Answer 2

Electromagnetic (EM)

Optical and infrared wavelengths

Ranges

Question 3

General characteristics

Answer 3

Active sensor - sends out EM and receive the reflected signal back

LiDAR will not see through fog or clouds

LiDAR can see at night

Question 4

Categorization of LiDAR

Answer 4

Range-only or 1D LiDAR - only measures one dimenion (range)

2D/3D LiDAR - measures in two/three dimension

Question 5

LiDAR can record

Answer 5

Intensity variation of the reflected light (gray scale)

Color of an object IF >1 wavelength of light

Velocity by a Coherent LiDAR

Question 6

LiDAR can generate a dense,three-dimensional, and geo-referenced ….

Answer 6

Point cloud

Question 7

Where LiDAR systems can be placed? For what?

Answer 7

Aircraft, ground-based, and mobile platforms for mapping