Question
Download Solution PDFLinear phase FIR filters have ______ group and phase delay responses.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFFinite Impulse Response (FIR) filter
- In signal processing, a finite impulse response (FIR) filter is a filter whose impulse response is of finite duration because it settles to zero in finite time.
- FIR filters can be discrete-time or continuous-time, and digital or analog.
- The impulse response of an Nth-order discrete-time FIR filter has exactly N+1 samples.
- For a linear-phase filter, group delay and phase delay are of the same value. So linear-phase filters are also called Constant Time Delay Filters.
- An FIR filter is a linear phase if its coefficients are symmetrical or anti-symmetrical around the center coefficient.
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