The Simulator Design Of Aviation Aircraft Radio Altimeter 265

265 radio altimeter, is Jianqi E / G, eight such aircraft to teach important an electronic navigation equipment,Used to measure the distance between aircraft to the surface of the earth, and with the indicator indicates it. Radio altimeter is an important aircraft electronic navigation equipment, but also the focus of teaching. Simulator design, one can achieve the function of airborne equipment required to make up for the lack of physical inconvenience, to make teaching more intuitive. On the other hand, the simulator is designed to save significant military, for military regularization of great practical significance.The main design of this project is to convert the voltage pulse, obtained by the signal generator voltage signal reflected by the internal circuitry to indicate a high degree of calculation circuit, the height indicator scale linearly with the voltage signal proportional, therefore, according The size of the voltage by a high degree of visual information.This paper will highlight the following:1. PIC MCU structure, performance and programming, PIC MCU on the stability of better than 51, in the industrial control, instrumentation, computers, home appliances and many other areas of extremely bright future.2. Stepper motor function and use. In order to obtain good control performance results, there has been a lot of stepping motor control system, which uses single chip as the control of the control system has been widely used.3. PIC microcontroller and AD7705 Based High Precision Data Acquisition System. Achieve high efficiency and high precision signal acquisition, with a strong anti-interference ability. Successfully applied in intelligent instruments, make the meter run to enhance the reliability and security.4. To achieve unity of mechanical and electrical, so that the location of mechanical gears converted to electrical signals received by microcontroller,the mechanical parts together with the circuit to achieve the mechanical and electrical integration.5. The overall design of the perfect.