The block derepeats each frame, treating distinct channels independently. Each
element of the output is the average of N consecutive elements
along a column of the input matrix. N must
be less than the frame size. N represents the Derepeat
factor, N
parameter.
When you set the Rate options
parameter to
Enforce single-rate processing
, the input and output
of the block have the same sample rate. The block reduces the sampling rate by using
a proportionally smaller frame size than the input. To process
all input values, N must be an integer factor of the number of
rows in the input vector or matrix. For derepetition by a factor of
N, the output frame size is 1/N times the
input frame size, but the input and output frame rates are equal. When you use this
option, the Initial condition
parameter does not apply and the
block incurs no delay, because the input data immediately shows up in the
output.
For example, for a single-channel input with 64 elements that is derepeated by a
factor of 4, the block outputs 16 elements. The input and output frame periods are
equal.
Also, in single-rate processing mode you can use this block in a triggered
subsystem.