METHOD OF INTERFERENCE-IMMUNE RECEPTION AND TRANSMISSION OF INFORMATION ON COMMUNICATION CHANNEL WITH NOISE AND DEEP FADING AND RADIO STATION Russian patent published in 2009 - IPC H04B1/38 H04J13/02 

FIELD: information technology; railway transport.

SUBSTANCE: present invention relates to information transmission systems, used in railway transport. In the method information to be transmitted is broken down into packets, each of which is broken into L characters of m bits each. The characters are explicitly replaced with corresponding standard sequences (SS), which possess inter-correlation properties. The encoded packet is alternated and transmitted in a radio channel. At the receiving side there is reception of elementary signals (ES) corresponding to bits of the transmitted encoded packet. The encoded packet is de-alternated, the attachment of each elementary signal to the number of the transmitted character and the bit number inside the replacing standard sequence are determined. The result of analogue-to-digital conversion of the elementary signal is successively multiplied by the corresponding bit number 2^m of the standard sequence. The products are accumulated in adders, corresponding to the number of standard sequences. From the maximum value of accumulated sums, each of the L received standard sequences is reconstructed. The information series of characters is reconstructed from the chosen conformity of the standard sequence and initial bits of the packet. The radio station contains a transceiver (1), codec (2), and an adjustment unit (3). The codec contains a unit for generating characters (7), display unit (8), alternation unit (9), unit for adding synchro-sequence (10), reference signal unit (11), analogue-to-digital converter (12), correlation adder unit (13), reconstruction unit (14), synchroniser unit (15) and a control unit (16).

EFFECT: higher probability of correct reception of information while retaining sufficient transmission speed.

2 cl, 3 dwg