MT Map Bits to CPM Symbols
- Updated2023-02-17
- 3 minute(s) read
MT Map Bits to CPM Symbols
Maps an incoming bit stream to symbols comprised of CPM frequency deviations.
Inputs/Outputs
input bit stream
The incoming bit stream to be mapped to symbols.
symbol map
A two-dimensional array of desired frequency deviations.
Each column corresponds to a symbol, with the binary representation of the column index being the mapped bit-representation of the symbol. Each row corresponds to a modulation index in the order in which it appears in the modulation index, h(i) parameter of MT Generate CPM System Parameters (M) or MT Generate CPM System Parameters (map). To specify a prebuilt map, unbundle the symbol map element from the CPM system parameters cluster generated by MT Generate CPM System Parameters (M) or MT Generate CPM System Parameters (map).
Default value: empty array
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
reset?
A Boolean that determines whether stored state information is cleared on each call to this node.
When the input bit stream is not comprised of an integer number of symbols, the carryover bits are buffered.
| TRUE | Clears the buffered data, checks the input parameters on a first call, and reflects any change in the input parameter values during subsequent iterations. |
| FALSE | Adds the buffered data to the beginning of data from next iteration, in continuous operations. |
Default value: TRUE
symbols
An array of CPM frequency deviations with a one-to-one mapping to the input bit stream based on the specified CPM symbol map.
error out
Error information.
The node produces this output according to standard error behavior.