| 摘要 |
FIELD: instrument engineering. ^ SUBSTANCE: hydroacoustic navigation distance gauge includes a responder beacon request signal emission channel, a receiver channel with an amplifier, an integrator matched with the signal front length and the threshold circuit, and a distance counter. The hydroacoustic navigation distance gauge includes the first delay circuit connected between the output of the emission channel and the start input of the distance meter, the multiplier circuit, the second delay circuit whose input is connected to the threshold unit output, and the output - to the first input of the multiplier. Besides, there is a second integrator matched with the response signal length, the threshold unit and the one-shot multivibrator. The input of the second integrator is connected to the amplifier output, and the output of the multivibrator is connected to the second input of the multiplier whose output is connected to the input of the distance gauge. ^ EFFECT: enhancement of the hydroacoustic navigation distance gauge noise immunity while measuring distance to the "" in a singular "request-response" cycle. ^ 1 dwg |
