intfilt

The number of samples specified as a positive integer scalar. Function intfilt designs an FIR filter with a linear phase response using a sequence interspersed with l consecutive zeros every l counts.

The number of non-zero samples, set as a positive integer scalar. Function intfilt Designs a linear phase response FIR filter that performs interpolation within the bandwidth using the nearest p non-zero counts.

The inverse of the transition bandwidth, set as a scalar. Meaning alpha It is inversely proportional to the filter bandwidth and also affects the bandwidth of areas of no interest in the attenuation band. Meaning alpha allows you to specify how much of the Nyquist interval of the input signal is occupied, which part of the Nyquist interval is occupied by the input signal. This is useful for signal interpolation because it allows you to increase the transition bandwidth without affecting the interpolation, and leads to better attenuation in the delay band for given l and p. If you set the value alpha an equal 1, then it is assumed that the signal occupies the entire Nyquist interval. Installation for alpha values less than 1 allows for the presence of areas of no interest in the delay band. For example, if the input signal occupies half of the Nyquist interval, then you can set for alpha meaning 0.5.

The order of the Lagrange polynomial, given as a positive integer scalar. FIR filter performs Lagrange polynomial interpolation n-th order for a sequence interspersed with l consecutive zeros every l counts. If n and l If they are even, then the developed filter does not have a linear phase characteristic.

An option that means Lagrange polynomial interpolation.

The filter coefficients returned as a vector. Vector elements b are the coefficients of the FIR filter. If the value is specified alpha, then it is assumed that the initial band is limited by alpha multiplied by the Nyquist frequency. Vector length b equal to l p .

When interpolating by the Lagrange polynomial n-th order, vector b has a length of n l if n even, and the length n l if n the odd one.