DspEdu 2.1 is a Perl/Tk GUI program for Windows Platform to help Students of Digital Signal Processing at Engineering Undergraduate level in learning introductory DSP and experimenting with basic concepts of DSP. Course Instructors will also find the program of help in enhancing the effectiveness of their lectures by using the plot displays from this program.There are six modules under this program at present. More modules will be added in future and these modules will also undergo revision.

This module assists the student of DSP in his study of the DFT of Finite Duration Sequences and to examine the relationship between spectral sampling and time-domain aliasing in such sequences. There are 10 examples coded in the program. In addition, user can create, edit and save sequences as project files which can be subsequently loaded into the module. The FFT computation results can be saved into text files and the plots can be saved in Postscript format.

This module also allows the user to calculate and display samples of Fourier Transform (sample number less than the length of sequence) of finite duration sequences and to examine the relationship between inverse DFT of such samples and the original data sequence. A comparison of Fourier Transforms of the original sequence and the aliased sequence also can be performed.

This module allows the user to generate the discrete-time sequences for FFT analysis and IFFT analysis by using a sequence generation window.It is also possible to generate the study sequences by typing in values and indices in the main window. Cursor support with read-out is provided in all sequence plots.It is possible to view the sequence plots in drop-line mode or line-join mode.

Click on the pictures below for high resolution screenshots of this Module or click on the link below to get more information on this Module.