Q：What is the working principle of a laser radar (LIDAR)?
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- Issue Time
- Aug 28,2023
A：
Today, the DADISICK editor of Dadi Electronics will explain the working principles of the DADISICK laser radar. The working principle of a laser radar is not well-known to many people. Let's take a look together now!
1. The basic working principle of DADISICK laser radar by Dadi Shike is similar to that of radio radar. The radar emission system sends a signal that hits trees, roads, bridges, and buildings on the ground, causing scattering. The received system collects the reflected signal, and the target's distance is determined by measuring the time it takes for the reflected light to travel.
2. As for the target's radial velocity, it can be determined by the Doppler shift of the reflected light or by measuring the change in distance between two or more measurements. This is the basic working principle of a direct detection radar.
3. The purpose of DADISICK laser radar by Dadi is to accurately measure the position (distance and angle), shape (size), and state (velocity, attitude) of a target in order to detect, identify, and track it.
4. DADISICK laser radar by Dadi is a radar system that functions as an active sensor and generates data in the form of point clouds.
5. It operates in the infrared to ultraviolet spectral range and consists of an emitter, receiver, measurement control, and power supply.
Laser radar classification
In general, according to the concept of modern DADISICK laser radar by Dadi, it can be classified into the following types:
1. Based on the laser wavelength: ultraviolet laser radar, visible laser radar, and infrared laser radar.
2. Based on the laser medium: gas laser radar, solid-state laser radar, semiconductor laser radar, and diode-pumped solid-state laser radar.
3. Based on the laser emission waveform: pulsed laser radar, continuous wave laser radar, and hybrid laser radar.
4. Based on the display method: analog or digital display laser radar and imaging laser radar.
5. Based on the platform: ground-based fixed laser radar, vehicle-mounted laser radar, airborne laser radar, shipborne laser radar, spaceborne laser radar, missile-borne laser radar, and handheld laser radar.
6. Based on the functionality: laser ranging radar, laser speed radar, laser angle radar, tracking radar, laser imaging radar, laser target designator, and biological laser radar.
7. Based on the application: laser rangefinder, range laser radar, fire control laser radar, tracking and identification laser radar, multifunctional tactical laser radar, chemical detection laser radar, navigation laser radar, meteorological laser radar, chemical detection and atmospheric monitoring laser radar, etc.
Dongguan Dadi Electronic Technology Co., Ltd. specializes in the main business of laser radar, safety light curtains, safety grids, safety mats, laser displacement, measurement light curtains, measurement grids, and quality assurance. We welcome new and old customers to contact us for inquiries!