| 摘要 |
FIELD: radiolocation; safety of landing of seaplane. SUBSTANCE: device has clock pulse generator connected in series with starting pulse generator, transmitter, aerial switch and aerial. Time delay pulse generator, strobe pulse generator and high frequency amplifier are connected in series with output of clock pulse generator. Signal input of high frequency amplifier is connected with output of echo-signal of aerial switch. Amplitude detector is connected in series with videoamplifier, peak detector, lower frequency filter and amplification automatic control unit; all the units are connected between output of high frequency amplifier and its third input. Output of peak detector is connected in series to lower frequency filter (centering device), squarer, the second lower frequency filter, unit for taking square root and seawave height indicator. Output of echo-signal of aerial switch is connected in series to high frequency amplifier, amplitude detector, peak detector and lower frequency filter; all these units are brought into the device additionally. The second input of high frequency amplifier is connected with output of strobe pulse generator. Output of lower frequency filter is connected with transmitter power control input. Power of transmitter is controlled automatically, at which change in average level of echo-signals at input of high frequency amplifier is compensated being caused by effect of changes in current values of angle of deviation of axis of directional pattern against vertical line and height of flight of flying vehicle. EFFECT: improved precision of measurement. 1 dwg |
