Uses frequency sampling to design a linear phase FIR filter. fir_fs windows the impulse response with a Hamming window.
b = fir_fs(n, f, a)
b = fir_fs(n, f, a, w)Legacy name: fir2
Filter order. n is a nonnegative integer. n must be even for filters with a non-zero gain at the Nyquist frequency. If n does not meet this condition, MathScript increases n by 1.
Frequencies at which you want to take samples. 1 represents the Nyquist frequency. f is a real vector of ascending values in the interval [0, 1]. length(f) must equal length(a).
Magnitudes at each of the f frequencies. a is a real vector. length(a) must equal length(f).
Symmetric window to apply to the impulse response. w is a real vector of length n + 1.
Filter coefficients of order n. b is a real vector.
N = 13; F = [0, 0.1, 0.5, 0.7, 1]; A = [0, 1, 1, 0, 0]; B = fir_fs(N, F, A)
Where This Node Can Run:
Desktop OS: Windows
FPGA: This product does not support FPGA devices