FIR filter windowing methods
조회 수: 1 (최근 30일)
이전 댓글 표시
Hi, I have a burning question want to ask.
Why windowing is not necessary if we have more than 100 coefficients for the FIR filter at a sampling rate of 0.1Hz?
Any hints and tips will be appreciated!
댓글 수: 0
답변 (1개)
Wayne King
2013년 12월 2일
Can you be more specific? Are you talking about designing an FIR filter using the window method or applying a window to FIR filter coefficients.
The window method for FIR filter design typically begins with some idealized response, which has an infinite impulse response, truncating that response, and then applying a window to improve things like sidelobe behavior and enforce symmetry to ensure linear phase.
So what exactly are you having trouble with?
댓글 수: 2
Wayne King
2013년 12월 2일
If you want to design an FIR filter, you have to have a finite number of filter taps.
참고 항목
카테고리
Help Center 및 File Exchange에서 Digital Filter Analysis에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!