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Method for the calibration of an FM/CW type radio altimeter, and radio altimeter designed for the implementation of this method
Method for the calibration of an FM/CW type radio altimeter, and radio altimeter designed for the implementation of this method
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机译:FM / CW型无线电高度仪的校准方法以及为实现该方法而设计的无线电高度仪
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摘要
A radio altimeter using a linear oscillator to transmit a saw-toothed signal comprises, in addition to this first oscillator, a second linear oscillator to transmit, in synchronism with the first linear oscillator, another saw-toothed signal with a given saw-tooth duration Td. The plateau of the sawteeth of the two saw-toothed signals are at a distance from each other equal to a value f. The test consists in obtaining a height h′ by beats between the two saw-toothed signals and computing a standard height he=f.c.Td/dF.2 where c is the speed of light and dF the duration of each saw-tooth of the other signal. Application to all FM/CW radio altimeters.
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