Data transmission and error correcting codes

Data transmission simulation, protected by error correcting code, through noisy channel, is one of A.A.E.C.C. principal research axis. We present two parts of an application of our works ; befor that, we present some recalls of error correcting codes ´theory. a) The hardware part. Automaton DOLVRON-1, completely elaborated in A.A.E.C.C. Lab, is placed below a video cine-camera and above three video monitors. DOLVRON-1 realizes the visalisation, in real time, of three pictures : the initial one, the noisy one, and the picture restaured after protection, jamming and decoding. b) The software part. SITIN-1 is a powerfull soft. It simulates digital pictures transmission protected by Fires´codes, through noisy channel. SITIN-2 (second generation) simulates a condensed Braille transmission by satellite TELECOM-1.