METHOD OF FORMING NOISE-IMMUNE WIDEBAND SIGNALS Russian patent published in 2016 - IPC H04K1/00 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering, namely to wireless communication and can be used to increase noise immunity of signal in communication systems. Method involves formation of a broadband signal replacement elements sequence transmitted data with the value of 0 to elements having -1 value. For modulating pseudorandom sequence of length N *τ, where τ may receive the value of 1 * 10-6 to 100 * 10-6 seconds, is represented by any signal vector $${\overrightarrow{q}}_i$$ , own number which λ approximately equal to 1, selected from a set of Eigen functions of Q Matrix type with elements of the type: $$a_{i,j}=\{\begin{array}{l}\frac{\sin (v(i-j))}{\pi (i-j)},i\ne k\\ v/\pi ,i=k\end{array}$$ , where indices i, j = 0, 1, ..., L; k = 0, 1, ..., L; v-coefficient which determines the width of the communication channel of the generated signal v =π/6; L-dimension matrix, i.e. the number of readings in the signal vector of 64 to 1024. A transmitted signal according to the following expression: x_z= e_k·q_d, where x_z -element formed noiseless signal $$\overrightarrow{x}$$ ; z is the index number of signal element z = 0, 1, 2, ... (N · L-1); k-element sequence number sequence is calculated as k = [z/L] +1; (e)_k -element resultant transmitted sequence $${\overrightarrow{e}}_N$$ ; d is the index number of the element vector $${\overrightarrow{q}}_i$$ , is calculated as d = z (k-1) L +1.

EFFECT: technical result is high bandwidth signal in 2 times as compared with the width of frequency band signal generated using biorthogonal wavelet-function, which increases noise immunity and energy efficiency of radio communication systems without loss in information transmission speed.

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