Hello
I am demodulating a signal. In which Low Pass Filter (LPF) is used to attenuate high frequency modulated signal. The input and outup of LPF is shown. The problem is the edges of LPF output signal is not square [as shown in figure] which result in poorly selection of lower and upper switching voltage of schmitt trigger [which retrieve orignal message signal]. So,i need the output of LPF to be exactelly square edge , which facilitate me to accurately select lower and upper switching voltage of schmitt trigger.
I keep on changing the cutoff frequency of LPF to obtain my required result but failed. If any one would suggest me any solution that result in obtaining square edged LPF output.
Thanks.
I am demodulating a signal. In which Low Pass Filter (LPF) is used to attenuate high frequency modulated signal. The input and outup of LPF is shown. The problem is the edges of LPF output signal is not square [as shown in figure] which result in poorly selection of lower and upper switching voltage of schmitt trigger [which retrieve orignal message signal]. So,i need the output of LPF to be exactelly square edge , which facilitate me to accurately select lower and upper switching voltage of schmitt trigger.
I keep on changing the cutoff frequency of LPF to obtain my required result but failed. If any one would suggest me any solution that result in obtaining square edged LPF output.
Thanks.
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