Carrier synchronization processing method and device

Abstract

The invention discloses a carrier synchronization processing method and a carrier synchronization processing device. The method comprises the following steps of: storing a received communication frame into a cache; discriminating phases of the pilot frequency of the communication frame to acquire carrier synchronization parameters of the pilot frequency; calculating to acquire carrier synchronization parameters of the payload of the communication frame according to the carrier synchronization parameters of the pilot frequency; and performing carrier synchronization on the payload of the communication frame stored into the cache according to the carrier synchronization parameters of the payload. According to the method and the device, cache processing is performed on the received communication frame, the carrier synchronization parameters of the payload are acquired by calculation according to the carrier synchronization parameters of the pilot frequency of the communication frame, and the carrier synchronization is performed on the payload of the communication frame stored into the cache according to the carrier synchronization parameters of the payload. The method can update the carrier synchronization parameters of the payload, improves the whole carrier synchronization performance, and improves phase jump resistance of receivers.

Description

technical field [0001] The present invention relates to the technical field of telecommunications, in particular to a method and device for carrier synchronization processing. Background technique [0002] When the receiver of digital microwave communication performs microwave communication, the carrier wave of the transmitted signal is generated by the local oscillator of the radio frequency module. The frequency jitter of the local oscillator may occur when the stress such as temperature and pressure changes, which is called phase jump. Both the carrier frequency and the coherent receiving frequency may be jittered by the phase jump, thereby affecting the performance of the receiver. The higher the carrier frequency band, the greater the impact on the receiver. Anti-phase jump performance has become an important index to measure the performance of the receiver. [0003] In order to improve the anti-phase jump performance of the receiver, it is necessary to improve the car...

AI Technical Summary

Problems solved by technology

[0006] In the prior art, when performing carrier synchronization, the carrier synchronization parameters are only updated when the pilot data is received, and the carrier synchronization parameters are not updated when receiving the payload data between the pilots

The phase jump may occur at any time. When the phase jump occurs when the payload between the pilots is received, the carrier synchronization parameters will not be updated when receiving the payload. In the phase of receiving the payload, the carrier synchronization parameters and the actual channel will be changed. There is deviation, therefore, the overall carrier synchronization performance of the receiver is not ideal

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