Y = interp(X, R)
Y = interp(X, R, N)
Y = interp(X, R, N, alpha)
| Parameter | Description |
|---|---|
| X | nonempty input vector. Its length must be at least 2*N+1. |
| R | positive integer interpolation factor. |
| N | positive integer filter length parameter. The default value is 4. |
| alpha | bandlimitedness factor in the interval (0, 1]. The default value is 0.5. |
| Parameter | Description |
|---|---|
| Y | interpolated vector with length R times the length of X. |
interp inserts R-1 samples between input samples and applies a least-squares interpolation FIR filter. Linear edge extrapolation is used before filtering so the returned vector has the expected phase and length.
y = interp(1:8, 2, 2);| Version | Description |
|---|---|
| 2.0.0 | initial version |