The laser pointer radar is actually a radar working in the optical band (special band), and its advantages are very obvious:
1. Extremely high resolution: Lidar works in the optical band, and its frequency is 2 to 3 orders of magnitude higher than microwave. Therefore, compared with microwave radar, laser radar has extremely high range resolution, angular resolution, and speed. Resolution
2. Strong anti-interference ability: the laser has a short wavelength and can emit a laser beam with a very small divergence angle (on the order of μrad), and the multipath effect is small (will not form directional emission, and multipath effects with microwave or millimeter waves) can be detected Low-altitude / ultra-low-altitude target;
3. The amount of information obtained is abundant: the distance, angle, reflection intensity, speed and other information of the target can be directly obtained to generate a multi-dimensional image of the target;
4, can work all day: green laser pointer active detection, does not depend on external lighting conditions or the radiation characteristics of the target itself. It only needs to emit its own laser beam and obtain the target information by detecting the echo signal of the emitted laser beam.