[Application of codec in image transmission 2] Use convolutional Viterbi codec + BPSK to realize wireless image transmission, and compare PSNR indicators of received images under different signal-to-noise ratios

Table of contents

1. Theoretical overview

2. Matlab programming implementation

3. Simulation verification

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1. Theoretical overview

The image transmission test structure is the following communication link:

where the modulation is BPSK

channel codec 

       The convolutional code is (2, 1, 7) standard convolutional code, the constraint length is 7 bits, the code generation vector G1=1111001, G2=1011011, (G2 is output after inversion), and this code pattern has 64 states in total. y