
Hello
Are you finding problem with long decay pulses and want to make them short without getting into negative polarity signal. The technique is call pole zero correction method for differentiated signal that brings back baseline to near zero level.
In the picture above, The Original Signal -1 is the one to be shortened and Signal-2 is differential signal of the same which tends to go negative with negative slope. By adding fraction -3 of the input to the differentiated signal, we can get the final signal -4, which is short pulse and yet remain positive all the time.
Picture drawn is only an approximation to explain and not an observed or recorded signal. If any one wants to know more about it then write here. We often come across such signals in charge measurement using charge sensitive devices.
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Prof. (Dr.) Shyam, Managing Director for Sensors Technology Private Limited. Gwalior, MP474001, India.