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A Multi-channel Parallel Optical Sampling Analog-to-Digital Conversion Data Fusion Method

An analog-to-digital conversion and data fusion technology, applied in optical analog/digital converters, analog/digital converters, analog-to-digital converters, etc., can solve problems such as performance degradation and low effective number of data bits, saving time and resources , the effective number of digits is improved, and the effect of ensuring consistency

Active Publication Date: 2022-02-11
UNIV OF ELECTRONICS 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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  • A Multi-channel Parallel Optical Sampling Analog-to-Digital Conversion Data Fusion Method

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] see attached figure 1 , the preferred 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: The single channel signal adopts the nonlinear correction method related to the signal amplitude according to the nonlinear characteristics of the Mach-Zehnder intensity modulator;

[0018] The specifi...

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Abstract

The invention belongs to the field of computer data processing, and in particular relates to a multi-channel parallel optical sampling analog-to-digital conversion data fusion method, which is intended to solve the problem that after multi-channel data is spliced, the effective digits of the recovered data are low, resulting in signal degradation; including The following steps are as follows: Step 1: The single-channel signal is based on the nonlinear characteristics of the Mach-Zehnder intensity modulator, and a nonlinear correction method related to the signal amplitude is used; Step 2: Normalize the data of each channel; Step 3: Multiple After splicing the channel data, Fourier transform is performed on the fused data, and then processed by a filter to output the data. After processing through the above steps, the time and resources of data processing can be saved, the quality of the signal recovered after splicing can be improved, and the effective number of bits of the system can be improved.

Description

technical field [0001] The invention belongs to the field of digital signal processing, and in particular relates 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 placed on the analog-to-digital conversion technology. Sampling analog-to-digital conversion technology. [0003] This technology adopts the control of optical delay, distributes the parallel multi-channel sampling optical pulses evenly in the time domain, and then uses the Mach-Zehnder modulator array to realize the sampling of the analog signals by the multi-channel optical pulses. As well as electrification, the data used in parallel by N channels can be obtained, and finally, the data output of analog-to-digital conversion at N times the sampling rate of a single channel can be obtained by splicing the parallel data of N channels. ...

Claims

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Application Information

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