Method and system for detecting leading edge of pulse waveform based on straight line fitting
A straight line fitting and pulse waveform technology, which is applied in pulse characteristic measurement, general control system, control/regulation system, etc., can solve the problems of low detection accuracy of waveform frontier and inapplicable detection accuracy, etc.
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[0081] like figure 2 As shown, a specific embodiment of a method for detecting the leading edge of a pulse waveform based on straight line fitting includes the following steps:
[0082] 1) The average operation is performed on the m waveform sampling points in the window, and the maximum value is obtained for the n sampling points;
[0083] 2) Perform an arithmetic right-shift operation on the maximum value of the waveform sampling point in the obtained window, which is equivalent to dividing by 2, then delay and wait for the average value Calculation results;
[0084] 3) Delay the waveform sampling point and wait for the average value Calculate the result so that L XY calculate;
[0085] 4) Calculate L XY , and then continuously search for L XY The maximum value L XY_MAX ;
[0086] 5) Calculate Then delay computing the result and wait for L XY maximum result;
[0087] 6) Multiply the result of step 5) by L XX ;
[0088] 7) Divide the calculation result of ste...
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