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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[0006] The invention provides a multi-channel parallel optical sampling analog-to-digital conversion data fusion method, which is intend

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

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[0015] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0016] See figure 1 The optimal implementation of the present invention is described below: a multi-channel parallel light sampling analog number transition data fusion method, including the following steps:

[0017] Step 1: The single channel signal is based on the nonlinear characteristics of the Mach-Zendel intensity modulator, using a nonlinear correction method associated with signal amplitude;

[0018] The nonlinear correction method of the single channel signal is specifically operated in: performing a coefficient co...

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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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