Transmitting end iterative dispersion compensation method for intensity modulation direct detection system

An intensity modulation and dispersion compensation technology, which is applied in transmission systems, electromagnetic wave transmission systems, and distortion/dispersion elimination. Dispersion compensation effects, low-complexity effects

Active Publication Date: 2021-10-01
SUN YAT SEN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, due to its low degree of freedom, it has the disadvantages of slow it

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  • Transmitting end iterative dispersion compensation method for intensity modulation direct detection system
  • Transmitting end iterative dispersion compensation method for intensity modulation direct detection system
  • Transmitting end iterative dispersion compensation method for intensity modulation direct detection system

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[0034] The drawings are for exemplary descriptions, and cannot be understood to be limited to the present invention; in order to better illustrate the present embodiment, the following components will be omitted, amplified or shrinking, and does not represent the size of the actual product; It is understood that some well-known structures and descriptions thereof will be apparent from the drawings. The positional relationships in the drawings are only for exemplary description, which is not to be understood as limiting the invention.

[0035] like figure 1As shown, a transmitting end iterative dispersion compensation method for intensity modulation direct detection systems, including the following steps:

[0036] S1. Original Real Signal | X (T) | After 2x Sampling and Pulse Forming Get Signal Amplification | E (T) |, the original real signal | x (t) | After 2 times, after the sample is sampled, by one The rumored boostrine filter is a pulse mold; since the modulation process realize

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Abstract

The invention belongs to the technical field of optical communication systems and high-speed optical signal processing, and particularly relates to a transmitting end iterative dispersion compensation method for an intensity modulation direct detection system. According to the method, in the amplitude limiting process of the receiving end, the amplitude of even symbols in two times of sampling points in the iteration process is reserved and only the amplitude of odd points is replaced, so that the optimizable space of the signal is better utilized, and the iteration convergence speed and the final dispersion compensation effect are improved.

Description

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Claims

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Application Information

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Owner SUN YAT SEN UNIV
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