High-speed residual path management module of Viterbi decoder
A technology of Viterbi decoder and management module, applied in the field of high-speed Viterbi decoder survival path management module, can solve the problems of decoding speed limitation, large decoding delay, etc., so as to reduce output interval and reduce decoding delay. , the effect of increasing data processing capacity
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[0018] Viterbi decoder of embodiment (2,1,7)
[0019] This embodiment adopts the hardware structure of the structural block diagrams shown in FIGS. 2 , 3 and 4 to implement the Viterbi decoding process. Clock is an external input clock. When receiving the judgment bit Data_in sent by the previous stage, the control module controls two 64*6 register groups 11 and 12 to exchange. The exchange direction is determined by the output control module 2. Each exchange After 6 times, the result is sent to the register latch 23 for preservation, and at the same time, the two register groups 11 and 12 are reset, and a new exchange is restarted. When the amount of processed data exceeds the decoding depth, the output control module 2 samples the InitState signal to obtain the address of the read register latch 23 . Read the data in the register latch 23 sequentially by this method, until the data stored at first is read, it can be used for buffering and outputting.
[0020] This embodime...
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