Covert communication waveform iterative receiving method and device based on orthogonal time-frequency-space

The invention relates to the field of communication and digital signal processing, discloses a covert communication waveform iterative receiving method and device based on orthogonal time-frequency-space, and aims at a multi-domain joint covert communication waveform generated by a transmitting end, and adopts a semi-independent parallel iterative receiving detection algorithm based on a Turbo iterative receiving architecture. Namely, a conventional signal and a hidden signal share the same linear multi-carrier equalization module during receiving detection, and are divided into two parallel iteration loops outside the linear multi-carrier equalization module for simultaneous parallel iteration processing; therefore, the iterative receiving detection of the transmitting-end covert communication waveform after passing through the high-dynamic channel is realized. Compared with the prior art, the method has the advantages that the probability that the signal waveform is intercepted and analyzed by a non-partner