Method and apparatus for automatically adjusting the resolution of a radio - altimeter on its measurement range of altitudes

摘要

P process and apparatus for automatically adjusting the resolution of a radio altimeter - wave maintained at a frequency modulation (cwfw). / p & & p & it comprises a counter must count a signal generated by the altimeter of a period which may be related to the altitude that is to be measured. A counter that counts the number of pulses of a reference signal of time which is on a number of periods of the signal linked to the predetermined altitude automatically by a circuit that react to the full state of the pulse counter of the reference signal and generating a signal after the counter has reached a predetermined count. The multiple of the signal linked to the altitude is then determined, and the number of pulses of the reference signal of period of time, then counted is divided by the number of multiple found. / p & & p & application to the aerial navigation. / p