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
CN112636772AInactive Publication Date: 2021-04-09BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
Publication Date
2021-04-09
Estimated Expiration
Not applicable · inactive patent

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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.
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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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