Matlab programs of 4-1 ECE

Here are some programs of matlab for 4-1 ECE

1. Generation of Basic waveforms
2. convolution
3. fast fourier transforms
4. inverse fast fourier transforms
5. sum difference and product of sine waves
6. auto correlation and power spectrum density
7. Phase and Magnitude response of butterworth low pass filter
8. Phase and Magnitude response of butterworth high pass filter
9. Phase and Magnitude response of butterworth band pass filter
10. Phase and Magnitude response of butterworth stop band filter
11. Phase and Magnitude response of chebeshev 1st order low pass filter
12. Phase and Magnitude response of chebeshev 1st order high pass filter
13. Phase and Magnitude response of chebeshev 2nd order low pass filter
14. Phase and Magnitude response of chebeshev 2nd order high pass filter

Note:I didn't change the titles on graphs of some filters.Except that program and figure are perfectly alright