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Multi-path parallel optical sampling analog-to-digital conversion data fusion method

A technology of analog-to-digital conversion and data fusion, applied in optical analog/digital converters, analog-to-digital converters, analog-to-digital conversion, etc., can solve problems such as performance degradation and low effective data bits, and save time and resources , effective number of digits increase, and the effect of improving signal quality

Active Publication Date: 2021-07-16
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

[0006] The invention provides a multi-channel parallel optical sampling analog-to-digital conversion data fusion method, which is intended to solve the problem of low effective digits of recovered data after multi-channel data splicing, resulting in performance degradation

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  • Multi-path parallel optical sampling analog-to-digital conversion data fusion method

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] See attached figure 1 , the best embodiment of the present invention is as follows: a multi-channel parallel optical sampling analog-to-digital conversion data fusion method, comprising the following steps:

[0017] Step 1: According to the nonlinear characteristics of the Mach-Zehnder intensity modulator for the single-channel signal, a nonlinear correction method related to the signal amplitude is adopted;

[0018] The specific operation of the non-l...

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Abstract

The invention belongs to the field of computer data processing, particularly relates to a multi-channel parallel optical sampling analog-to-digital conversion data fusion method, and aims to solve the problems that after multi-channel data are spliced, the effective bit number of recovered data is relatively low, so that semaphore is degraded; comprising the following steps: step 1, adopting a signal amplitude-related nonlinear correction method for a single channel signal according to the nonlinear characteristic of a Mach-Zehnder intensity modulator; step 2, normalizing the data of each channel; and step 3, after splicing the multi-channel data, performing Fourier transform on the fused data, processing the fused data through a filter, and outputting the data. Through the above steps, the data processing time and resources can be saved, the quality of signals recovered after splicing is improved, and the significant digits of the system are improved.

Description

technical field [0001] The invention belongs to the field of digital signal processing, in particular to a multi-channel parallel optical sampling analog-to-digital conversion data fusion method. Background technique [0002] In recent years, with the maturity of digital signal processing technology, higher requirements have been put forward for analog-to-digital conversion technology. Sampling analog-to-digital conversion technology. [0003] This technology adopts the control of optical delay, and distributes the parallel multi-channel sampling optical pulses in the time domain with uniform delay, and then uses the Mach-Zehnder modulator array to realize the sampling of multi-channel optical pulses to the analog signal, and then through the photoelectric signal conversion As well as electrification, the data used in parallel by N channels can be obtained, and finally the parallel data of N channels can be spliced ​​to obtain the data output of analog-to-digital conversion...

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Application Information

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IPC IPC(8): G02F7/00H03M1/12
CPCG02F7/00H03M1/1205H03M1/1245
Inventor 邱琪田诗园范志强苏君
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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