This was a relatively easy assignment as the MATLAB function fir1() directly generates the required filter based on the given specifications. The only task was to decide the appropriate window function based on the given stop band attenuation, as taught in the lecture.
Lots of time was spent in designing a High Pass IIR Filter using IIM, but in the end we realized that it was not possible. This was because of the many-to-one mapping of frequencies when using IIM method of filter design.
FIR filters are very useful because they can be used to obtaining linear phase response.
ReplyDeleteWindow method is widely used because different window functions can be used for different specifications of filter design.
ReplyDeleteYes, MATLAB does make it much simpler to use and analyse different Window functions with variety of inbuilt functions.
ReplyDeleteWhy not use 'C' as the other experiments?
ReplyDelete