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机载电子设备的数字化是当前先进科学技术的发展方向。为了适应新技术的发展需要,作为高度传感器的雷达高度表的数字化势在必行。本文介绍的雷达高度表输出信号的数字化电路,以单片机系统为核心,使用8位 A/D 转换芯片,辅以适当的软件程序,输出高精度的12位二进制高度信息,显示高精度的5位十进制高度数据.该电路具有体积小、重量轻、功能全、精度高、适用性广的特点。
The digitalization of airborne electronic equipment is the direction of the development of advanced science and technology. In order to meet the needs of the development of new technologies, the digitalization of radar altimeter as a height sensor is imperative. This article describes the digital circuit of the radar altimeter output signal to the microcontroller system as the core, the use of 8-bit A / D converter chip, supported by the appropriate software program, the output of high-precision 12-bit binary height information, showing high-precision 5 Decimal height data. The circuit has a small size, light weight, full-featured, high precision, wide applicability features.