Trellis Metrics trellis_metrics_x from gnuradio import trellis trellis.metrics_$(type)($card, $dim, $table, $metric_type) set_TABLE($table) Type type enum Complex c io:complex table:complex_vector Float f io:float table:real_vector Int i io:int table:int_vector Short s io:short table:int_vector Output Cardinality card int Dimensionality dim int Constellation table $type.table Metric Type metric_type enum Euclidean trellis.TRELLIS_EUCLIDEAN Hard Symbol trellis.TRELLIS_HARD_SYMBOL Hard Bit trellis.TRELLIS_HARD_BIT in $type.io out float Generate metrics required for Viterbi or SISO algorithms.