A three-dimensional digital oscilloscope waveform processing method capable of displaying time information
A three-dimensional digital and waveform processing technology, applied in the direction of digital variable/waveform display, digital variable display, instruments, etc., can solve problems such as submersion, difficulty in grasping, and low brightness
Active Publication Date: 2020-12-01
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
However, this method does not contain information about the time sequence of different acquisition times, cannot display the acquisition sequence and time relationship of the acquired waveforms, and cannot analyze the time sequence relationship between signals
And for abnormal information such as glitches with a single occurrence or a small number of occurrences, due to the low probability of occurrence, its brightness will be very low or submerged, and sometimes it is necessary to capture abnormal waveform information with a small frequency of occurrence, using the existing method will not display this signal correctly
Especially when the abnormal signal is unknown, or the mechanism of abnormal signal generation is unknown, it will become difficult to capture
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[0027] image 3 This is a specific implementation flow chart of the waveform processing method of the three-dimensional digital oscilloscope capable of displaying time information according to the present invention. like image 3 As shown, the specific steps of the three-dimensional digital oscilloscope waveform processing method capable of displaying time information of the present invention include:
[0028] S301: Initialize data:
[0029] Record acquisition start time T 0 , initialize the value of each screen display point to 0.
[0030] S302: Waveform acquisition:
[0031] Acquire a waveform, record its acquisition end time T, and calculate the time point of this waveform V=(T-T 0 ) / T a , T a Indicates the waveform acquisition time interval. Map each sampling point in this waveform to the screen display coordinate point, and record the coordinates of the screen display coordinate point corresponding to the sampling point in this waveform as (x,y), where x=1,2,...,X...
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The invention discloses a three-dimensional digital oscilloscope waveform processing method capable of displaying time information. When collecting waveforms, the time point of the current waveform is calculated according to the end time of waveform collection and the start time of collection, and each sampling point in the waveform is Map to the screen display coordinate point, so that the value corresponding to the screen display coordinate point is equal to the time point, and so on until the waveform display command comes. The index number obtained from the query in the table is displayed in the same color as the value of the displayed coordinate point. The present invention uses different colors to show the different sequence of waveform acquisition, thereby showing the time information of the waveform data.
Description
technical field [0001] The invention belongs to the technical field of measuring instruments, and more particularly relates to a three-dimensional digital oscilloscope waveform processing method capable of displaying time information. Background technique [0002] As a widely used general-purpose instrument, oscilloscope has experienced the development of analog oscilloscope, digital storage oscilloscope and three-dimensional digital storage oscilloscope. With the development of electronic technology, the mainstream oscilloscopes are digital storage oscilloscopes. Digital storage oscilloscopes improve the ability to perform post-processing such as analysis, decoding, frequency domain analysis, vector analysis, etc. on waveform data. A simple digital storage oscilloscope only displays one waveform obtained by one acquisition. Since digital processing requires a certain processing time, the acquisition is intermittent, and there is a large amount of dead time. In order to di...
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IPC IPC(8): G01R13/02
CPCG01R13/0209
Inventor 赵伟杰潘卉青叶芃赵勇曾浩
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA