Variable rate viterbi decorder

摘要

A variable rate Viterbi decoder comprising: a signal generating means for generating a control signal according to an input code rate and a sampling clock; a memory for storing punctured coded data; a memory control means in which a signal for recognizing valid data is inputted, and a read signal and a write signal are generated according to an input clock, the sampling clock, and the control signal from the signal generating means; a depuncturing means for depuncturing the punctured coded data from the memory according to the sampling clock and the control signal from the signal generating means; and a Viterbi decoding means for decoding the depunctured data from the depuncturing means according to the sampling clock and the control signal from the signal generating means.