Satellite two-way-based remote time reproduction system
A remote, two-way technology, applied in time division multiplexing systems, radio-controlled timers, multiplexed communications, etc., can solve the problem of rapid reappearance of remote standard time with large errors and inability to reproduce standard time at any node, etc. question
Active Publication Date: 2020-02-11
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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[0004] The purpose of the present invention is to propose a satellite-based two-way remote time reappearance device to solve the problem that the remote standard time fast reappearance error is large and it is impossible to reappear any node of the standard time
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[0054] In order to explain the present invention more clearly, the present invention will be further described below with reference to the accompanying drawings. Similar components in the drawings are denoted by the same reference numerals. Those skilled in the art should understand that the content described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
[0055] The embodiment of the present invention provides a two-way satellite-based remote time reproduction system. The system 1 includes: a standard comparison device 2 and a remote reproduction device 3, wherein:
[0056] The remote reproduction device 2 is configured to perform the following steps:
[0057] S1: Receive the first comparison signal output by the standard comparison device after processing, and compare it with the local signal of the remote reproduction device;
[0058] S2: If the comparison result meets the preset comparison condition, output the ...
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The embodiment of the invention discloses a satellite two-way-based remote time reproduction system, which comprises a standard comparison device and a remote reproduction device; the remote reproduction device is configured to execute the following steps: S1, receiving a processed first comparison signal output by the standard comparison device, and comparing the first comparison signal with a local signal of the remote reproduction device; s2, if the comparison result meets a preset comparison condition, outputting a first comparison signal as a reproduction signal; if the comparison resultdoes not meet the preset comparison condition, generating a second comparison signal based on the comparison result and outputting the second comparison signal to a standard comparison device; s3, receiving a second comparison signal processed by the standard comparison device, and comparing the second comparison signal with a local signal regenerated by the remote reproduction device; if a comparison result meets a preset comparison condition, outputting the processed second comparison signal as a reproduction signal; and if the comparison result does not meet the preset comparison condition,repeatedly executing the steps S1-S3 again until a reproduction signal meeting the preset comparison condition is output.
Description
Technical field [0001] The present invention relates to the field of time reproduction, and more specifically, to a remote time reproduction system based on two-way satellites. Background technique [0002] Satellite two-way time comparison technology uses communication satellites as carriers and uses pseudo-code ranging technology to achieve remote and high-precision clock error measurement. It has high measurement accuracy and good real-time performance. It is widely used in time-frequency measurement, navigation and other fields. At present, the requirements for time consistency are getting higher and higher, so the remote precision reproduction of time is particularly important. Generally speaking, the remote reproduction of standard time can be realized by satellite time service, long-wave time service, etc. However, because this type of time service method introduces more errors, the time reproduction accuracy is low, and it can only reproduce a specific time The time the ...
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IPC IPC(8): H04J3/06G04R20/02
CPCG04R20/02H04J3/0644H04J3/0661
Inventor 王学运张升康王海峰易航王宏博杨文哲
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT