Radar Servo Controller Based On Arm + Fpga Design

This paper has been studying ARM + FPGA-based radar servo controller on the basis of domestic and foreign servo control radar system.First of all,in accordance to the radar servo control system functional requirements and performance indicators,the hardware design:choice based on the ARM920T's S3C2410 and Altera's FPGA chip EP1C12Q240 as master chip,connection between ARM and FPGA used interruption + memory;the extra-pin lead of ARM and FPGA for the future escalation of the need also map and a PCB board was produced.Second,PID was selected for servo control systems,fuzzy neural network integrated fuzzy control and neural network advantages of neural networks and fuzzy PID algorithm to adjust parameters on-line.With Matlab7.1 simulation,the results show that:the control algorithm has good results,performance has greatly improved.than conventional PIDFinally,main task of FPGA is to connect between ARM and external devices in accordance with the servo system.Using VHDL and Block Diagram/Schematic in the FPGA chips were prepared to achieve DAC0832 D/A converters,optical encoder pulse circuit and the code,and in QuartusⅡ6.0 environment simulation,and get In full compliance with the wave simulation system functional requirements.C language used in the preparation of ARM to achieve FNN PID algorithm code,adopted CodeWarrior for ARM compiler correct,generating an executable file.Axf,call AXD online simulation debug.The simulation results show that: fuzzy neural network algorithm PID servo system to carry out effective control.The results showed that:ARM as a servo controller core,cost-effective and integrated high with FPGA chip interface circuits so that the servo controller high reliability and speed, can be configured and flexible connectivity options.So based on ARM + FPGA radar servo controller,improve the system of open,real-time,reliability and reduce the power system is an important value.