Discrete-time, parallel structure filter
Refer to dfilt.parallel in Signal Processing Toolbox™ documentation.
You can also use the standard notation to combine filters into a parallel structure.
In this syntax, hd1, hd2, and so on can be a mix of dfilt objects, mfilt objects, and adaptfilt objects.
hd1, hd2, and so on can be fixed-point filters. All filters in the parallel structure must be the same arithmetic format — double, single, or fixed. hd, the filter returned, inherits the format of the individual filters.