A Waveform Processing Method of 3D Digital Oscilloscope

Abstract

The invention discloses a waveform processing method of a three-dimensional digital oscilloscope. When collecting the waveform, each sampling point in the waveform is mapped to a screen display coordinate point, and the coordinates of all screen display coordinate points obtained by mapping the waveform this time are and the acquisition time constitute the waveform data, and so on until the waveform display command arrives. When performing waveform display, for each screen display coordinate point, judge whether the screen display coordinate point exists in each waveform data in turn, and if it exists, use the corresponding Update the luminance coefficient of the coordinate point displayed on the screen at the acquisition time; divide the luminance coefficient interval into sub-intervals according to the number of waveforms, each sub-interval corresponds to a color, and display the waveform according to the sub-interval where the luminance coefficient of the coordinate point is located on the screen Select the corresponding color from the color table for display. The present invention adopts different colors to display the information of waveform acquisition sequence and hit times.

Description

technical field [0001] The invention belongs to the technical field of measuring instruments, and more specifically relates to a waveform processing method of a three-dimensional digital oscilloscope. Background technique [0002] Oscilloscope, as a widely used general-purpose instrument, 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 now digital storage oscilloscopes. Digital storage oscilloscopes have improved the post-processing capabilities of waveform data such as analysis, decoding, frequency domain analysis, and vector analysis. A pure digital storage oscilloscope only shows a 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 display multiple waveforms obtained by mu...

AI Technical Summary

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 very difficult to capture

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