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Pulse-code signal selector incorporating automatic digital gain control. RU patent 2292639.

FIELD: pulse engineering.

SUBSTANCE: proposed pulse-code signal detector incorporating automatic digital gain control has channels, each one incorporating main amplifier connected in series with main threshold element, decoder connected in series with pulse shaper, and first switch whose data input is connected to decoder input and control input, to pulse shaper output; next-channel main amplifier gain is higher by an order of magnitude than that of preceding one; all channels are connected in parallel and newly introduced in each one are preamplifier whose gain is higher by an order of magnitude than that of next one and threshold element; input of entire selector functions as common input of all preamplifiers; preamplifier output is connected to data input of main amplifier and to input of additional threshold element; output of additional threshold element is connected to control input of main amplifier; each channel has phase protection unit; output of main threshold element is connected to input of phase protection unit whose output is connected to decoder input and to data input of first switch; outputs of first switches in each channel function as selector outputs.

EFFECT: enhanced impulsive noise immunity.

1 cl, 10 dwg

IPC classes for russian patent Pulse-code signal selector incorporating automatic digital gain control. RU patent 2292639. (RU 2292639):

H03K5 - Manipulating pulses not covered by one of the other main groups in this subclass (circuits with regenerative action H03K0003000000, H03K0004000000; by the use of non-linear magnetic or dielectric devices H03K0003450000)

H03G3/20 - Automatic control (combined with volume compression or expansion H03G0007000000)

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