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Frequency spectrum automatic refining batch processing method
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A spectrum refinement and batch processing technology, which is applied in the field of data processing, can solve the problems of dense spectral lines in the characteristic frequency domain, irregular data dimensions, and large data volumes, so as to solve multiple working conditions, reduce workload, and improve data quality. The effect of processing efficiency
Active Publication Date: 2018-07-27
BEIJING MECHANICAL EQUIP INST
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[0004] In view of the above analysis, the present invention aims to provide a batch processing method for automatic spectrum refinement to solve the existing problems of many working conditions, large amount of data, irregular data dimensions, and dense spectral lines in the characteristic frequency domain
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Embodiment 1
[0061] A specific embodiment of the present invention discloses a batch processing method for automatic spectrum refinement, which specifically includes the following steps:
[0062] Step 1. According to different test boundary conditions, classify the collected data of different working conditions, and import them into the MATLABworkspace in batches;
[0063] Specifically, the test boundary conditions can be test time, load conditions, etc.;
[0064] Preprocess the data in order to prepare for data refinement judgments to improve the accuracy of subsequent judgments.
[0065] Step 2. Perform data normalization processing on the collected data of each working condition imported in batches;
[0066] Preferably, said step 2 includes the following steps:
[0067] Step 201, assuming that the number of collected data in a working condition is M, that is, including M data vectors of different lengths, find the maximum number of sampling points, that is, the maximum length, and de...
Embodiment 2
[0103] This embodiment describes in detail the monitoring method using the system described in Embodiment 1.
[0104] Step 1. According to different test boundary conditions, classify the collected data of different working conditions according to the boundary conditions such as test time and load conditions, and import them into the MATLABworkspace in batches;
[0105] Step 2. Perform data normalization processing on the collected data of a working condition imported in batches;
[0106] In the embodiment, the spectrum refinement processing of a working condition is illustrated. The actual data is simulated by numerical signal and imported into MATLAB for regularization. The two signals have the following form:
[0107] the s 1 =cos(2π100t 1 )+cos(2π101.5t 1 )+cos(2π102.8t 1 )
[0110] the s 2 =cos(2π70t 2 )+cos(2π85t 2 )+cos(2π112t 2 );
[0111] t 2 =0.001:0.001:0...
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Abstract
The invention relates to the technical field of data processing, in particular to a frequency spectrum automatic refining batch processing method. The frequency spectrum automatic refining batch processing method includes steps of acquiring data; carrying out regularization processing on the data; acquiring effective peak frequencies; judging whether refining processing is required or not by the aid of effective frequency difference values and carrying out linear Z-transformation on frequency spectra required to be subjected to refining processing; repeatedly carrying out the steps to completely carry out refining processing under all working conditions. The frequency spectrum automatic refining batch processing method has the advantages that the problems of multiple working conditions, high data volumes, irregular data dimensions, dense spectral lines of characteristic frequency domains and the like during frequency spectrum analysis can be solved by the aid of the frequency spectrumautomatic refining batch processing method; regularization batch processing can be carried out on the data by the frequency spectrum automatic refining batch processing method, automatic refining processing can be carried out on the frequency spectra by the aid of the frequency spectrum automatic refining batch processing method, and frequency characteristics of the data can be effectively acquired by the aid of the frequency spectrum automatic refining batch processing method.
Description
technical field [0001] The invention relates to the technical field of data processing, in particular to a batch processing method for automatic spectrum refinement. Background technique [0002] Spectrum analysis is the most commonly used method in signal processing. Traditional spectrum analysis methods generally use Fast Fourier Transform (FFT) to obtain a panoramic spectrum of the entire frequency range. For fine observation and analysis, it is necessary to adopt a certain frequency refinement method to improve the frequency resolution. [0003] However, in large-scale experiments or numerical simulation analysis, the data generally have the following characteristics: many working conditions, large amount of data, irregular data dimensions, dense spectral lines in the characteristic frequency domain, etc. If manual spectrum calculation and analysis are used, the extraction efficiency of massive data spectrum features will be reduced, and there will be potential uncertai...
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