Research On The Signal Processing Technique Based On Panoramic Laser Fuse System

Laser is one of the greatest science results in last century, which is widely usedin many areas. This paper researches the laser detection system based on six phases,study the issues of laser detection and put forward methods to recognize the target.Laser detection is so widely used because of its characteristics: directional,brightness and coherence. Directional ensure the ability to resist interference and itspositioning accuracy; brightness makes the laser easy to be found by the system.Moreover, the development of digital technology raises the speed and capacity of thedigital processing circuit, it is becoming the best choice of signal processing in thelaser detection system.Laser detection system consists of three parts: the laser emission machine, thelaser reception machine and the signal processing machine. The laser emissionmodule adopt the pulse laser machine, using integrated circuit drive the machine togenerate a laser pulse with a frequency of10KHz and a pulse width of100ns. Thesystem adopts PIN photodiode to receive the laser. In order to eliminate the influenceof clutter interference, this paper studies echo clutter from the sea surface and ground,researches the scattering coefficient and probability distribution of the interference,and builds a module to represent the clutter interference and the rolling of the missile,by which we obtain the intensity of the interference in different position. Additionally,this paper discusses methods to locate the target precisely, we can obtain the distanceand position of the target, moreover, based on the information received by manyreceivers, and we can differentiate target and interference.