How does the phased array toolbox realize the off-grid time delay with phased.FreeSpace system object?

While the time delay is not corresponding to a grid point, e.g. half a grid or one 7 of the grid. how does the code process?

Here I suppose the smallest grid is defined by the sampling rate of the signal. Is it right?

[Cole]

I know, its a tricking. too simple too naive.

Answer 1

[Honglei Chen]

Hi Cole,

You are right that the grid is defined by the sampling rate of the signal. If the time delay is not corresponding to a grid point, in the current version, the signal is fractional delayed.

HTH