WELCOME TO DIGITAL SIGNAL PROCESSING DEMO


   This demo shows 3 applications of signal
 processing.

 1) A signal is processed by a low pass filter

 2) A signal is processed by a high pass filter

 3) A signal is convolved with a specified function.

FUNCTIONALITIES

    MENU BAR

        <<File|Quit>>
            Quit this application.

        <<Help|About signal processing>>
            Display this information file.


    RADIO BUTTONS

       1) Low pass filtering
           The signal is processed by a low pass
           filter that removes high frequencies.
           Four plots show  :

           i)    Original signal
           ii)   Power spectra
           iii)  Low pass Butterworth filter
           iv)   Filtered signal

       2) High pass filtering
           The signal is processed by a high pass
           filter that removes low frequencies.
           Four plots show  :

           i)    Original signal
           ii)   Power spectra
           iii)  High pass filter
           iv)   Filtered signal

       3) Convolution
           The signal is convolved with another
           signal as defined by the kernel.

           Four plots show  :

           i)    Original signal
           ii)   Filter (other signal)
           iii)  Convolved signal
           iv)   Signal minus the convolved signal

    SLIDER

    <<FILTER LENGTH>>

        Select the filter length of the
        convolution signal.