Robust communication system for transmissions in a noisy environment

摘要

The invention concerns a robust communication system (1) for transmissions through a noisy environment, which comprises a cascade of a discrete signal source (2), a chaotic modulator (3) for the signal, a noisy transmission channel (4), and an incoherent discriminator or receiver (5). Advantageously in a preferred embodiment, the incoherent discriminator (5) comprises a high-pass filter (6) effective to remove the lowest frequency harmonics of the received signal, a rectifier (7) providing the absolute value of the wave, a low-pass filter (8) carrying out a mean of the rectified wave, and a comparator (9) placed after the low-pass filter. <IMAGE>