基于ARM的无线电定位角的测量方法

Measurement Method of Wireless Location Angle Based on ARM

针对飞机定位角度的测量方法的低成本,高实用性,提出了一种无线定位角转化为数字信号并对其进行采集、处理与发送的实现方法。该测量方法以可编程晶振为激励源,旋转变压器作为角位移传感器,由角度-数字转换器进行解算,将模拟信号转换成16位高精度的数字信号输入主控单元ARM7,再由主控单元进行分析和处理;该测量方法计算了硬件电路中的主要参数,并修正角度数字信号;最后保证了角度数字信号的精度在0.05°。

For localization angle measurement method of low cost, high practicality, a method is presented to convert wireless positioning angle into a digital signal, acquiring, processing and sending this digital signal. This method is achieved by some modules , including a pro- grammable oscillator as the excitation source, a rotary transformer as the angular displacement sensor, a angular--to--digital converter sol- ver, and a main control unit ARM7, analyzed and processed by the main control unit . In This measurement method, the hardware circuit parameters are calculated, and the angle digital signal is corrected. Finally, the accuracy of angle digital signal is ensured to 0.05°.