首页>
外国专利>
Radio-electric helicopter distance and angle measuring system - has ground based responder supplying information to on board interrogator via pulse width modulation
Radio-electric helicopter distance and angle measuring system - has ground based responder supplying information to on board interrogator via pulse width modulation
展开▼
机译:无线电力直升机测距和角度测量系统-具有基于地面的响应器,可通过脉宽调制向车载询问器提供信息
展开▼
页面导航
摘要
著录项
相似文献
摘要
An interrogator on a helicopter contains a transmitter comprising a voltage controlled oscillator which transmits via an antenna. The signals are received at a responder which decodes the signal to cause transmission of pressure and direction signals via pulse width modulation. The signals are filtered (21) detected and applied to an frequency to voltage converter to receive the information. A period meter measures the timing of the signals to determine distance and speed from the responder. The system also has barometers to indicate altitude differences between two nearby points, allowing the local relief to be established.
展开▼