Autonomous time keeping system and method based on time delay control

A technology of delay and delay compensation, applied in the field of communication, can solve the problem of relying on satellite signals, and achieve the effect of good mobility and high cost performance

Pending Publication Date: 2022-07-01
四川阿秒科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] 1. The present invention aims to solve the shortcoming that the existing satellite timing is highly dependent on satellite signals in use. In the absence of satellite signals, it can ensure high-precision time synchronization in a short period of time and act as a temporary standard time and frequency source

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  • Autonomous time keeping system and method based on time delay control
  • Autonomous time keeping system and method based on time delay control
  • Autonomous time keeping system and method based on time delay control

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Embodiment Construction

[0044] The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes Such changes are obvious within the spirit and scope of the present invention as defined and determined by the appended claims, and all inventions and creations utilizing the inventive concept are within the scope of protection.

[0045] In one embodiment of the present invention, as figure 1As shown, an autonomous time-keeping system based on time delay control includes: a satellite signal receiving module, an atomic clock and an FPGA;

[0046] The satellite signal receiving module is used to receive the time stamp signal and 1PPS signal sent by the satellite, and transfer the time stamp signal and 1PPS signal to the FPGA;

[0047] The atomic clock is used to gene...

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Abstract

The invention discloses an autonomous time keeping system and method based on time delay control, and relates to the field of communication, and the system comprises a satellite signal receiving module, an atomic clock and an FPGA. According to the invention, a local atomic clock and 1PPS signals from satellite (GPS / Beidou) time service are mainly used, and after the FPGA is used for measurement for a period of time, high-precision synchronous output of time signals in a short time can be ensured under the condition that signals of subsequent satellite time service are missing.

Description

technical field [0001] The invention relates to the field of communications, in particular to an autonomous time-keeping system and method based on time delay control. Background technique [0002] High-precision time-frequency standards are an important element in the information age, and they play a vital role in science and technology, military and economic, social life and other fields. From the research of basic science, the development of engineering technology, to the operation of important departments and fields related to the national economy and people's livelihood, as well as the normal operation of national defense, which directly affects national security, all rely on high-precision time synchronization. [0003] In the process of delivering a high-precision time-frequency source to the user's location, various means are needed to ensure accuracy. With the development of technology, short-wave, long-wave, microwave, television, satellite and other methods have ...

Claims

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Application Information

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IPC IPC(8): G04R20/02G04G7/00
CPCG04R20/02G04G7/00Y02D30/70
Inventor 侯冬孟凇竹
Owner 四川阿秒科技有限公司
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