SU714653A1 - High-accuracy time signal transmitting method - Google Patents

Description

I

The invention relates to communication technology and can be used to transmit accurate time signals over communication channels with variable parameters.

A known method of transmitting signals, of exact time over communication channels with variable propagation time, at which the time of signal propagation in the communication channel f from the source to the information recipient is measured and taken into account.

However, this method has a low transmission accuracy.

The purpose of the invention is to demonstrate the accuracy of the transmission of accurate time signals .v

For this purpose, in the method of transmitting time signal signals via communication channels. with a variable propagation time at which the signal propagation time in the communication canal from the source to the information recipient is measured and taken into account, the said operation of taking into account the propagation time of the signal in the communication channel is carried out by transmitting

the signal in exact appearance as a sequence of binary pulses with a lead on the value of the propagation time in the communication channel, and the time of receiving the exact time signals is recorded from the results of averaging the fluctuations of all the pulses entering into the said sequence of binary pulses, and the said operation of measuring time the propagation of the signal in the communication channel is carried out automatically using the return path of the communication channel; periodically, the results of the above measurement of the time distribution Anenij signal in the communication channel with said inputted at the transmission delay time and the results of comparing the corrected lead time entered.

The drawing shows a structural electrical circuit of the device that implements the proposed method.

The device contains a lead block 1, a shaper 2 of a binary sequence; . ,; : /:; 71,

warmth, transmitter 3 isyoneMa, channel 4, 5 communication, npHeMirm 6 modem, decoder 7 binary follower bHocTUi synchronizer 8, bpok crapnegsh 9, sensor 10 signals BpeMeim, correction unit 11, receiver 12 modem, decoder 13, synchronizer 14, synchronizer 14, synchronizer 14 signals BpeMeim, block correction 11, receiver 12 modem, decoder 13, synchronizer 14, synchronizer 14, synchronizer 14, BpeMeim generator 16 local signaling.

The device works as follows (in a manner.: L;

The 1 ™ unit receives a time signal, which is predicted on the signal propagation channel in the communication channel, compared to the instant of time tp, and the clock frequency signal taken from it; These signals control the operation of the driver 2, from which the signals are sent to the transmitter 3 of the modem, and then to the transmission path of the communication channel 4. From the output of the reverse terrorist act of communication channel 5, the binary is fed to receiver 6, and from the participants to the decoder 7 and synchronizer 8, which averages the fluctuation 1 of the phase of elementary pulses of the 6th sequential pulse and generates taiKTTsbebe6be the 6th binary sequence and generates taiKTtsbitsy and 6th sequence of the pulses of the binary sequence and produces taiKTTsbebe6be the 6th binary sequence, and generates taiKTTsbebe6be and 6th sequence of the binary sequence, and generates taiKTtsbebe6be and 6th pulse sequence and generates taiKTtsbebe6be and 6th sequence of the binary sequence, and develops TaiKTtsbebe6be and 6th pulse generates TaiKTotsbits6 decoder 7. From the output of the decoder 7 "lennuyu signal in the form of a single short pulse is applied to the block of the confusion 9.

According to the time signal received from the sensor 1O at the time point Bd, the information from the lead unit 1–6 is recorded in the comparison block 9. From the same point in time, blobcom-91 measures the signal propagation time in units of high-frequency pulses, not received from sensor 10. At the moment of arrival of the signal from the decoder 7, the binary device of the transmitting device with 1 W or W signal 1 with the wound pattern of the transmitter has expired, it has the same time pattern, the control unit has the same time as the speed of the device, the device has the same signal, and the control unit of the transmitting device lead and propagation time. The result of the comparison is applied to the correction block 11, which, according to the arrival, and its input with a signal, corrects the input theme s-i e-,. SHG upsёShKGNN; ,., ...., -,., -,.,., ..., ..., ...

W, -4

In this way, the device treats the equality of the lead time and the r (distribution mode,

At the receiving point, the signals from communication link -1 are fed to the receiver, 12, the output of which is connected to the decoder 13, the synchronizer 14, and the transmitter 15.

The synchronizer 14 produces the phase average of the elementary pulses of the received binary sequence and, using the frequency of the generator 16 as the reference frequency, generates the clock frequency necessary for the operation of the decoder 13; from the output of chshinfra-. Torus 13 captures time, synchronous and in-phase signals with true time points.

The proposed device provides high accuracy of the transmission of accurate time signals.

Claims (1)

Invention Formula The method of transmitting signals of the exact time of the channels / communication with variable1m time propagated), h, at which the propagation time of the signal in the communication channel from the source to the receiver of information is measured and taken into account, characterized in that increase the accuracy of the transmission of accurate time signals, the said operation of taking into account the time of propagation of a signal in a communication channel is carried out by transmitting signals of an exact time in wil sequences of binary pulses with a lead time by the value of the propagation time in the communication channel, and the time of receiving the exact time signals is fixed by the results of averaging the fluctuations of all pulses included in the afterglow of binary pulses, and the said measurement operation of the signal propagation time on the communication channel is carried out automatically using the return path of the communication channel, periodically compare the results of the mentioned measurement of signal propagation time in the channel communication with said BBomiMbnvt in transmission . lead time and comparison results adjust the input lead time.