Comparison of various window techniques for design FIR digital filter

There are many digital signal processing applications in which digital filters are used. Signals are used for transmitting the data from source to destination. Then there is high possibility of signal deformation due to external noise. So to get the original signal at destination we used filters. Filters are used to remove the undesired frequencies from applied signal. In the paper, the definition, types and various methods of FIR digital filter are studied. This paper presented the different techniques of designing of filters and then compared.