GNU Radio 3.6.5 C++ API
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ATSC trellis encoder building block. More...
#include <atsci_basic_trellis_encoder.h>
Public Member Functions | |
atsci_basic_trellis_encoder () | |
int | encode (unsigned int input) |
void | reset () |
reset encoder state | |
Static Public Attributes | |
static const unsigned char | next_state [32] |
static const unsigned char | out_symbol [32] |
ATSC trellis encoder building block.
Note this is NOT the 12x interleaved interface.
This implements a single instance of the ATSC trellis encoder. This is a rate 2/3 encoder (really a constraint length 3, rate 1/2 encoder with the top bit passed through unencoded. This does not implement the "precoding" of the top bit, because the NTSC rejection filter is not supported.
atsci_basic_trellis_encoder::atsci_basic_trellis_encoder | ( | ) | [inline] |
int atsci_basic_trellis_encoder::encode | ( | unsigned int | input | ) |
Encode two bit INPUT into 3 bit return value. Domain is [0,3], Range is [0,7]. The mapping to bipolar levels is not done.
void atsci_basic_trellis_encoder::reset | ( | ) | [inline] |
reset encoder state
const unsigned char atsci_basic_trellis_encoder::next_state[32] [static] |
const unsigned char atsci_basic_trellis_encoder::out_symbol[32] [static] |