Desigh And Realization Of MMW Radar Seeker Servo Control System

Precision guided weapons play a key role in the modern war, Millimeter wave (MMW) radar seekeras precision guided core technology and an important part of its all-weather, all-day and "whatever" ability have attracted more and more attention.This thesis is based on the millimeter wave radar seeker as application background, combined with the dual frame gyro stabilized platform to complete a set of seeker servo control system design and development.Firstly, the system introduced the current domestic and foreign research situation wave millimeter radar seeker, stable platform and platform servo control system, briefly introduces the composition and working principle of millimeter wave radar seeker on, uses the mature PID control algorithm to complete the design of servo control system scheme of the seeker, the control the loop to establish the linear mathematical model. The seeker servo control system of the search loop, electric lock loop, tracking loop function, carries on the simulation of the control system, the simulation results show that, the control system is designed and achieved good results.This thesis focuses on design and Research on the core processing unit controller of millimeter wave radar seeker control system, the hardware circuit construction of stable platform servo control system based on DSP and FPGA, using the DSP is responsible for servo control, FPGA is responsible for input, output timing control, and extend AD,422communication interface peripherals. Motor driving circuit uses the PWM generator scheme, adjust motor speed. At the same time, gives the software design flow of DSP and FPGA, the software testing process are described.Finally, the assembly and test of servo control system, the test results shows that the seeker servo control system is running well, performance indicators have reached the design requirements.