In this experiment we design low pass and high pass linear phase FIR filter. Here we plotted magnitude and phase plot spectrum of both the filters.We observed that phase spectrum was linear. Depending upon the value of passsband attenuation we can choose windowing function: Rectangular,Bartlett,Hamming,Hanning and Blackman.
Short and crisp!
ReplyDeleteRectangular window is never used because of very low stop band attenuation
ReplyDeleteYes. It is usef because it is simplest
DeleteRectangular window has less value of As i.e. 29
ReplyDeleteOkay
Deleterectangular window function is simple
ReplyDeleteYes. It has low stop band attenuation
DeleteRectangular Window Function converts infinite to finite response
ReplyDeleteDepending upon the value of Stopband Attenuation the appropriate window function such as Rectangular,Hamming,Hanning and Blackmann is to be used. Nevertheless it is a very tedious approach .
ReplyDeleteYes the selection of window function depends upon the value of As
DeleteThis comment has been removed by the author.
ReplyDeleteBlackmann window function has the highest value of stop band attenuation
ReplyDeleteThough Blackman window is more efficient than other window functions,order increases in it.
ReplyDeleteHanning window provides stop band attenuation of 44db where as Blackman window provides highest attenuation of 74db
ReplyDelete