FIR digital filter

What is Filter? In  Signal Processing , a filter is a device or process that removes some unwanted components or features from a  Signal . Filtering is a class of  Signal processing  the defining feature of filters being the complete or partial suppression of some aspect of the signal. Most often, this means removing some  frequencies  or frequency bands.  What is Fir Digital Filter? In digital signal processing, an FIR is a filter whose impulse response is of finite period, as a result of it settles to zero in finite time. This is often in distinction to IIR filters, which can have internal feedback and will still respond indefinitely. The impulse response of an Nth order discrete time FIR filter takes precisely N+1 samples before it then settles to zero. FIR filters are most popular kind of filter executed in software and these filters can be continuous time, analog or digital and discrete time. F IR Filters for Digital Signa...