Method and device for processing frequency offset and phase offset
A processing method and a technology of a processing device, which are applied in the field of frequency offset and phase offset, can solve problems such as slow convergence speed of communication systems, lack of resources and performance, and extended processing time, achieving low power consumption, simple implementation scheme, and low power consumption. and the effect of speed optimization
Active Publication Date: 2019-02-05
SANECHIPS TECH CO LTD
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[0004] The traditional method of processing frequency deviation and phase deviation in the optical transmission network will lead to prolonged processing time, large resource consumption, and high power consumption, which will lead to slow convergence speed and poor stability of the communication system, and cannot reach the optimal resource and performance.
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[0046] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.
[0047] The current traditional method is to process the frequency offset and phase offset separately, that is, the signal first enters the frequency offset processing module for frequency offset compensation and estimation, and then enters the phase offset processing module for phase estimation and compensation. refer to figure 1, it can be seen from the figure that the frequency offset and phase offset processing mainly includes two parts: frequency offset compensation / frequency offset estimation and phase estimation / phase compensation. The polarization state X input sig...
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Disclosed in the embodiments of the present invention are a frequency shift and phase shift compensation method and device and storage medium. The method comprises: converting a first polarized signal and a second polarized signal into a third polarized signal and a fourth polarized signal in a polar coordinate system respectively; performing frequency shift compensation on the third polarized signal and the fourth polarized signal respectively to obtain a fifth polarized signal and a sixth polarized signal that are frequency shift compensated; splitting the fifth polarized signal and the sixth polarized signal into two paths, and performing fourth-power frequency shift estimation using signals in a first path to obtain a frequency shift compensation value, and performing fourth-power phase estimation using intermediate data of the fourth-power frequency shift estimation to obtain a phase compensation value; for signals in a second path, performing phase compensation on the fifth polarized signal and the sixth polarized signal using the phase compensation value, to obtain a seventh polarized signal and an eighth polarized signal that are phase compensated; and converting the seventh polarized signal and the eighth polarized signal in the polar coordinate system into a ninth polarized signal and a tenth polarized signal in a Cartesian coordinate system respectively.
Description
technical field [0001] The invention relates to the frequency offset and phase offset technology in the communication field, in particular to a frequency offset and phase offset processing method and device in an optical transmission network. Background technique [0002] In the development of transmission technology, optical fiber has proved to be an indispensable medium. How to use the least amount of optical fiber to transmit the most abundant information, out of this exploration, the development of optical transmission has basically gone through the following stages: Space Division Multiplexing (SDM, Space Division Multiplexing) stage, Time Division Multiplexing (TDM, Time Division Multiplexing) stage and Wavelength Division Multiplexing (WDM, Wavelength Division Multiplexing) stage. [0003] Today, wired transmission is still dominated by WDM systems. With the development of communication technology, the current commercial 40G WDM transmission has gradually evolved to...
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IPC IPC(8): H04B10/2507H04L27/26H04L25/02H04J14/02
CPCH04B10/2507
Inventor 芦秋雁
Owner SANECHIPS TECH CO LTD