Permute symbols using shift registers with specified delays
intrlved = muxintrlv(data,delay)
[intrlved,state] = muxintrlv(data,delay)
[intrlved,state] = muxintrlv(data,delay,init_state)
intrlved = muxintrlv(data,delay) permutes
the elements in
data by using internal shift registers,
each with its own delay value.
delay is a vector
whose entries indicate how many symbols each shift register can hold.
The length of
delay is the number of shift registers.
Before the function begins to process data, it initializes all shift
registers with zeros. If
data is a matrix with
multiple rows and columns, the function processes the columns independently.
[intrlved,state] = muxintrlv(data,delay) returns
a structure that holds the final state of the shift registers.
any unshifted symbols.
state.index is the index
of the next register to be shifted.
[intrlved,state] = muxintrlv(data,delay,init_state) initializes
the shift registers with the symbols contained in
directs the first input symbol to the shift register referenced by
init_state is typically the
from a previous call to this same function, and is unrelated to the
The examples in Convolutional Interleaving and Deinterleaving Using a Sequence
of Consecutive Integers in MATLAB and on the reference
page for the
The example on the reference page for
how to use the
state output and
with that function; the process is analogous for this function.
 Heegard, Chris, and Stephen B. Wicker, Turbo Coding, Boston, Kluwer Academic Publishers, 1999.