lidar

/ˈlī-ˌdär/ (ame, mw)

lidar — 名詞

1. a system or sensor that sends out laser pulses and reads the reflected light to

1.名詞C1
釋義

光達

用雷射測距並描出環境

a system or sensor that sends out laser pulses and reads the reflected light to measure distance or build a detailed map of an area or object

例句

Engineers mounted a lidar sensor on the drone to map the damaged bridge.

工程師把光達感測器裝在無人機上，為受損的橋樑繪製地圖。

collocation: lidar sensor

Mizuki's car uses lidar to spot bikes and people at night.

Mizuki 的車用光達在夜裡辨識腳踏車和行人。

use lidar to + verb

同義詞
  • laser scanner

    close in meaning for hardware, but often refers to the scanning unit rather than the whole sensing method

  • radar

    related detection technology, but it uses radio waves instead of laser light

  • sonar

    another related system that uses sound waves, mainly underwater

文法句型

lidar + noun (lidar data, lidar map, lidar sensor)

use lidar to + verb

collect lidar data

用法筆記

Often used for mapping land, roads, buildings, or obstacles. In self-driving cars and drones, lidar usually means the sensor itself; in surveying and research, it can also refer to the data or map produced from that sensing.

常見錯誤

❌The car's radar and lidar are the same thing.
✅The car's radar and lidar do different jobs.
💡Radar uses radio waves, while lidar uses laser light.
❌The drone took a lidar of the field.
✅The drone collected lidar data over the field.
💡Lidar is the sensing system or the data it produces, not a single picture.