SU291347A1 - DEVICE FOR TRANSMITTING MEASURING AND CONTROL SIGNALS IN DUPLEX COMMUNICATION LINES AT OPTIMAL FREQUENCIES - Google Patents

Description

The invention relates to the field of radio communications and can be used to transmit signals, their signals and measurement signals in adant lines at optimal frequencies.

Known similar devices contain a node for time setting, a node for encoding decoding commands for selecting the most appropriate time, a phase maniaulator and a demodulator, a node for controlling the selection of information of a selector and a frequency generator, an adder. However, short interruptions, when the optimum frequency is unknown, it is necessary to not return the radio link to the search mode, in which instead of digital information a command is sent about the optimal frequency, the operating frequencies of the transmitter and receiver are changed by a random program, and the noise immunity is determined by its resistance to measurement channel.

The aim of the invention is to increase the on-operativeness in operation without the first time of the radio link during short periods of communication in a special search mode and the improvement of its mechanical resistance and the transmission of measurement signals.

which is connected to the output of the phase main1; Sigals of one-touch registers in cascades of coincidence, while the inputs of all registers are connected to the outputs of the node for selecting the optimal frequency, and their outputs are connected to the control node for receiving information and the cascade of matches, V rye inputs of which are connected to a reference signal generator, and outputs a coincidence cascades connected to the frequency selector.

FIG. 1 shows a block diagram of the proposed device; on fng. 2 is a block diagram of a command receiving control node.

On the non-intermittent part of the station A, information was collected for the time at node 1 of the temporary compacted. are fed to the manipulator 2 of the niping signal, to the second input of which the signal frequency is optimal for a given time interval. The output of the manipulator 2 of the information signal is connected to the input of the adder 3, the second input of which is connected to the output of the phase control of the torus 4, two inputs of which are connected

to instrumentation coding equipment 5 and to the generator 6 measurement signals.

In the adder 3, the phase-amplified information signal is added to the multi-frequency control signal obtained at the output of the phase manipulator 4 by phase-manipulating the command code from the command encoding equipment 5 of each nz of the measuring signals generated.

At the receiving station B, the amplified signal arrives at the converter 7 and the optimum frequency selection node 8, and from the last information about the selected frequency arrives at the command coding node (not shown) and is transmitted in the reverse direction to switch the transmitter of station A to the selected frequency.

The output of the optimal frequency selection node 8 is connected to the input of the command control node 9 and the node 10 is controlled by the reception of information. The outputs of nodes 9 and 10 are connected to two inputs of the selector // frequency, the output of which is connected to the second input of the converter 7. The node 10 controls the information and provides a synchronous switch of the transmitter and the preamp to the selected frequency.

At the moment of switching to the new frequency by the signal from the information receiving control unit 10, the frequency selector 11 transmits to the converter 7 from the frequency generator 12 a frequency corresponding to the selected optimum frequency. From node 9, a command is received by commands (see Fig. 2) containing single-ended registers 13 connected to a cascade 14 of coincidence, to the second input of which from the driver 15 onor signals are pulses that ensure reception of commands at the optimum frequency for a specified time.

The output of the converter 7 is connected to

to the input of the demodulator 16, the output of which is connected to the command decoding section 17, and from the output of the latter, the control signal sends the transmitter B to the transmitter to switch it to the optimum frequency.

Switching to the optimum frequency is discrete in all cases.

Subject invention

A device for transmitting measurement signals and control signals in duplex communication lines at optimal frequencies, containing a time-varying node, an encoding and decoding node of optimal frequency selection commands, a phase manipulator and demodule, a node for controlling selector information and a frequency generator, adder , characterized in that, in order to increase operational efficiency without transferring a radio link during short interruptions of communication to a special search mode and increase the noise immunity of transmission, measuring x signals, on the alternate part, the output of the information output mannialtor is connected to the input sum of the mountain, the second input of which is connected to the output of the phase manipulator of the controllable digital devices, two inputs of which are connected to the command coding equipment and

To the generator of measuring signals, and at the receiving part, to the input of the node for selecting the optimum frequency, a command receiving control node is connected, consisting of a driver of reference signals of single-ended registers and

the cascades of the joint, while the inputs of all the registers are connected to the outputs of the optimum frequency selection node, and their outputs are connected to the control node for receiving information and a matching stage, the second inputs of which

connected to the driver oior signals, and the outputs of the stages of the joint and connected to the frequency selector.

Station A transmitting often

Station B pririe, part