作　　者： ; ; ;

机构地区： 西北工业大学自动化学院

出　　处： 《测控技术》 2010年第1期84-86,90,共4页

摘　　要： 针对飞机刹车半实物仿真系统中机轮速度传感器信号输入刹车控制盒的需要,研制了基于AD9833的飞机防滑刹车半实物仿真系统机轮转速模拟装置。该装置能够模拟飞机机轮转速,并将信号传送给半实物仿真控制盒。AD9833型可编程波形发生器是一款可产生高精度正弦波、三角波和方波信号的器件。该器件采用第3代频率合成技术,即直接数字频率合成技术(DDS),以"相位"的概念进行频率合成,可通过SPI标准串行接口与微处理器通信,通过编程能够产生不同频率的正弦信号。 For the requirement to put the speed sensor signal of wheel into the braking control box in the HILS （hardware in the loop simulation）, an aircraft wheel; speed signal simulating device is designed based on AD9833 for the HILS of aircraft anti-skid braking system. The device can simulate the signal of aircraft wheel speed, and the speed is transmitted to the control box of HILS. The programmable waveform generator, AD9833 is a device which can generate high-precision sine wave, triangle wave and square wave signal. The third generation frequency synthesizer technology, direct digital synthesis （DDS） is used in this device. DDS uses the concept of ＂phase＂ in synthesizing, AD9833 which can communicate with microprocessor via standard serial interface SPI can produce different frequency sine wave.

关 键 词： 飞机刹车 半实物仿真 直接数字频率合成

领　　域： [自动化与计算机技术] [自动化与计算机技术]