Research On Sever And Radio System Of Auto-Tracking Velocity-Measured Radar

After introducing the theory of velocity-measured radar systemically, this paper labors the software and hardware of, especially the automatic radar sever system. The solid transmitter adopts all-solid power amplifier chain circuit. The main monofier is frequency-steady and phase-locked source, while the power amplifier chain is made of the sixth level A class FET power amplifier. An isolation is used to increase the reliability and steady between them.The high delicacy receiver adopts the mirror receive and TR isolated technology. The receiver is made of filter,low noise FET amplifier,mixer,intermediate frequency amplifier,isolation and so on. The isolation between FET amplifier and mixer is used to restrain the noise, while the others to matching.The radar sever system adopts PID inherit arithmetic and PC104 bus in-bed system, which shows well response and steady state. The experiment indicates that the right parameters make the system working in a good state. Especially the PID inherit arithmetic has impoved the steady of this system, and it has elimilated the concussion when tracking the target.