SU775713A2 - Device for referencing scales of space-separated time standards - Google Patents

Description

(54) DEVICE FOR BINDING SCALES OF SPATIALLY DIFFERENT TIME REFERENCE STANDARDS

The invention relates to devices for anchoring the working time standard scales to the scale of the reference standard time & located at large distances with the help of signals transmitted by radio channels and is the resolution of a known device according to the author. St. NO 509859. In the basic invention on author. St. No. 509859 describes a device for binding the scales of spatially separated time standards used in the unified time service. This device consists of an exemplary ethanol time point and a working time reference point connected by a communication channel. The model time reference point includes a model time reference, modulator, transmitter, and receiver; the output of the model time reference is connected to the input of the modulator, the output of which is connected to the input of the transmitter, the output of the reference signal of the transmitter is connected to the receiver whose output is connected with the second input of the modulator. The working time standard includes a working time standard, a shift device, a modulator and a transmitter, while the output of the working standard is wired not connected to the first input of the modulator, the output of which is connected to the transmitter input, the output of the information channel at 1 peck is connected to the first input of the device shift, the output of which is connected to the second input of the modulator, the output of the receiver's synchronization channel is connected to the first input of the time interval meter, the second input of which is connected to the output of the modulator, and the output to the BTOpbDvT input roystva shear l. The disadvantage of this device is that when one of the points moves, it is not possible to determine whether to shift the local standard to the side in order to obtain an accurate fit of the scales. In addition, the accuracy of the reference is not high enough, since the command of 77 local shifts in the signal of a local atshun can form some area in a function. The chain of the invention is the increase in the exact number of anchors of the cabinets of spatially different standards of time. This chain is reached by the fact that the point of the model standard of time is supplied with an encoding bocM; the inputs of which are connected to the outputs of the receiver, and the output is connected to the second input of a mo (while working) time standard is provided with a decoding side, the input of which is connected to the output of the information channel of the receiver, and the output to the BOJvT / device. Fig. 1 shows a 6-block diagram of the device, and Fig. 2 shows the diagrams for its very work. In FIG. 1, the image is a center reference; 1 - transmitter; 2 - gfeemk to 3 detection kanap, 4 - kan / sh sync; 5 - coding 6 module bargain 7 -. peripheral receiver (PP) 8 - synchronization channel, 9 time interval meter; 3-0 - device shift; 11 - informational; Shna; 12 is a decoding unit, 13 is a modulator 14. the peripheral transmitter of item 15 is the correlation function of the detection channel 3/16 dcc / t / t & channel 4 response; S - working standard,. The outputs of the detection channels 3 and synchronization 4 of the receiver are connected through the coding unit 5 and the modulator 6 X to the transmitter. The central standard is connected to the transducer 8 through 1 6 modulator. The outputs of the reference signals of the transmitter 1 are connected to the reference inputs of detection 3 and synchronization 4. At the peripheral point of the link output, 8, the coupling of the terminal 7 is connected to 9 meter output co-ts-ing is connected to the scoop device 10, Vyhogod infokonnoKh) to; v1 on pa 11 is connected via decoding unit 12 to the cKstjra device whose output is connected to the modulator 13, jfsjHOiviy between the local / e-tap B and transmitter 14 Modulator output 13 code Shark to gauge 9 inter. veokzh time. FIG. 2, Q shows the time scale of the IP in FIG. 26 the time scale on the CIP in figo 2b - the initial development of the time scale of the local standard (i-shpus 1 6 shows a dashed line or: it) and the scale of the central standard (mf34 hive 15) on the PP; Fig. 2 g, the windowing position of the test pieces of the local standard after elimination of the gap, Shkap. The device for binding the scales of space-gaeino spaced standards, the time works as follows, Transmitter 1 emits 1 7 (FIGO) in the direction of the PP. Channel 8 of syncronisation of receiver 7 PD performs initial search and tracking of the HHMs vibiM signal. The meter 9 time intervals on the signals from the output of the synchronization channel and the signals of the local standard, detected by the output of the airdilator 13, determines the magnitude of the t-jj divergence (Fig. 2c) and enters it into the shift device 10, so that the pulses 18 are shifted to position 17 (Figs. 2, b). The impulse 17 is separated from the pulses of the central standard by the magnitude of the propagation time b of the signal from the central point of the cp to the pp (fig. 2.6). Then, with a periodicity Stjyrxaxfrfle -ll.moix, the maximum possible time in a given radio channel 1) b) discrete time shift of the local standard signal, which is fed through the transmitter 13 to the transmitter 14. The receiver 2 of the CPU receives this signal through time i, the channel output 3 detection signal appears only when coinciding delays of the received signal and the reference signal from transmitter 1 occur, t "in, detection channel 3 is a correlator signal from the output of channel 3 through coding unit 5 and modulator 6 is fed to P Transmitter 1 serves as a one-time command to stop the time shift of the local standard signal (received by information channel 11) the command signal through the 1st unit. The unit 12 acts on the shift device 1O and stops the signal of the local standard. The time interval meter 9 at this time fixes the total time of delivery of Lsfl (fkg) and determines the propagation time -b of the signal from the CPU to the FP according to form 4 4. where Ti is the pulse repetition period of the central signal. The t-value is inputted into the shift device 1O, which shrinks the pulses of the local reference signal so that the CPU and PP time scales turn out to be related.

At the time of detection of the kana / scrap 3 signal of detection (the characteristic of channel 3 is shown by the speve from the block in FIG. 1, it will capture the signal in synchronization channel 4 (its discriminatory

the characteristic is shown to the left of block 4 in FIG. one). If the time of detection of the signal by block 3 does not coincide with the middle of the characteristic 15, then the signal is produced in channel 4 of synchronization

errors of the corresponding sign, is fed to block 5, is encoded in KOTOpOvf, and through modulator 6 enters the transmitter 1. In receiver 7, the synchronization error signal from the output of the information channel 11 through decoding unit 12 is fed to the shifter 1O and eliminates the synchronization error. The same adjustment of the time scales is carried out when one of the points moves, as soon as a synchronization error signal occurs.

The initial assignment of the time scales of the CPU and PP is carried out by transmitting a command from lin to PP. The subsequent fine tuning of the time scales SP and SP is provided by the synchronization system by transmitting an error signal from the SP to the SP. This makes it possible to improve the synchronization accuracy of the scales of spatially separated time standards &

Thus, the goal is to improve the accuracy of the reference of time scales of spatially separated time reference — achieved by introducing a coding block and detecting satellite and synchronization channels at the receiver point of the model time reference, as well as the decoding block at the working time reference point.

Claims (1)

1. USSR author's certificate number 5O9859, cl. Q O4 C 11/02, 24.12.74 (prototype).