METHOD OF INFORMATION TRANSMISSION BY NOISE-LIKE SIGNALS IN MOBILE TACTICAL COMMUNICATION SYSTEM Russian patent published in 2018 - IPC H04B1/69 

FIELD: radio engineering, communication.

SUBSTANCE: mutually orthogonal or quasi-orthogonal information pseudo-random sequences are used to form the challenging and response signals of different objects. In a method of information transmission with noise-like signals in a mobile communication system on a transmitting side, the noise-like signals are formed by pseudo-random sequences including successively alternating information and masking pseudo-random sequences. The duration of the masking sequences varies depending on the digital data coming from the information source. A complex correlation function is formed on the receiving side, by means of a digital matched filter tuned to an information pseudo-random sequence. The digital data of the received information is determined from the time intervals between the maximums of the modules of the complex correlation function. Two information pseudo-random sequences are assigned to each object by its identification number, one for the challenging signal, the other for the response signal, which are selected from a plurality of orthogonal or quasi-orthogonal pseudo-random sequences. In this case, different information pseudo-random sequences for the response and challenging signal are used for different identification numbers, and the number of information pseudo-random sequences of both the challenging and response signals coincides with the number of objects in the tactical link.

EFFECT: elimination of intra-system disturbances.

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