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Time synchronization receiver system

A time synchronization and receiver technology, applied in the direction of synchronous receivers, transmission systems, synchronization devices, etc., can solve the constraints of increased resource occupation of receiving channels, large resource occupation, multi-channel time synchronization receiver accuracy performance and number of channels and other issues, to achieve the effect of taking into account resource occupation, optimizing resource occupation, and taking into account the performance of time synchronization accuracy

Inactive Publication Date: 2021-04-09
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Higher phase synchronization accuracy performance will result in greater resource occupation, and the increase in receiving channels will also result in a significant increase in resource occupation
Therefore, the resource occupation problem will restrict the improvement of the accuracy performance and the number of channels of the multi-channel time synchronization receiver

Method used

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Embodiment Construction

[0032] In order to make the technical solutions and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] One embodiment of the present invention provides a time-synchronized receiver system, such as figure 1 As shown, it includes the acquisition unit, tracking unit and solving unit, and also includes the preprocessing unit, where,

[0034] The pre-processing unit uses an all-digital feed-forward automatic gain control algorithm to adjust the amplitude of the received A / D sampling signal, so that the data information of the A / D sampling signal occupies as high a data bit as possible, and the A / D The low data bits of the D sampling signal are truncated to obtain the output signal.

[0035] In a specific embodiment, the high data bits and low data bits of the data information, such as 3698, 36 are high data bits, and 98 are low data bits. ...

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Abstract

One embodiment of the invention discloses a time synchronization receiver system, which comprises a capture unit, a tracking unit, a resolving unit and a preprocessing unit, and is characterized in that the preprocessing unit utilizes an all-digital feedforward automatic gain control algorithm to adjust the amplitude of a received A / D sampling signal; and the data information of the A / D sampling signal occupies a high data bit as much as possible, and performing bit cutting processing on a low data bit of the A / D sampling signal to obtain an output signal. The preprocessing unit is additionally arranged at the receiving end, the amplitude of the received signal is adjusted through full-digital automatic gain control based on gain judgment, data information of the received signal occupies a high data bit as much as possible, bit cutting processing is carried out on gain-adjusted data on the basis that the effective bit number and the output dynamic range of the received signal are guaranteed, and therefore, the resource occupation problem of the algorithm is optimized, and the time synchronization precision performance and resource occupation of the receiver are both considered.

Description

technical field [0001] The invention relates to the technical field of time synchronization. More particularly, it relates to a time synchronized receiver system. Background technique [0002] High-precision time synchronization is the basis for time-frequency mass transmission and traceability. With the promotion of fast UTC by the International Bureau of Weights and Measures (BIPM), various time-keeping laboratories have also put forward higher requirements for the measurement accuracy of remote comparison results. Two-way time synchronization technology is a widely used high-precision time transfer method, including satellite two-way, microwave two-way, laser two-way time synchronization, etc., which can provide nanosecond-level uncertainty. The two stations use the reciprocity of the signal on the transmission path to receive the modulated time signal of the other station at the same time, exchange the received signal data and then subtract them to obtain a high-precis...

Claims

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Application Information

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IPC IPC(8): H04B1/16H04L7/00
CPCH04B1/16H04L7/0079
Inventor 王艺陶张升康王海峰
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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