METHOD OF GENERATING KEYED SIGNAL OF TRANSCEIVER WITH AUTOMATIC ADJUSTMENT OF SPECTRUM PARAMETERS Russian patent published in 2025 - IPC H04L27/18 H04L1/20 

FIELD: radio engineering.

SUBSTANCE: after specified time interval Δt measuring the power of the generated manipulated signal in the out-of-band radiation band P_OBR and signals of other radio transmitting devices REC (protected signal) P_3Ci, after which the suppression coefficient Q_Si is determined, it is compared with the permissible value of the suppression coefficient Q_Pi and when the condition Q_Si≥Q_Pi making a decision on meeting EMC requirements and generating a keyed signal of the transceiver without filtering out-of-band radiation. Otherwise, the manipulated signal of the transceiver is filtered by a filter with an adjustable pulse characteristic "raised cosine", for which by performing iterations on interval from 1 to 0 the rounding factor is determined α_j=α_j-1-Δα, where Δα=0.05 is rounding factor adjustment step, which is calculated based on the order and set of elements of the filter itself.

EFFECT: reduced level of out-of-band radiation of the manipulated signal of the transceiver.

1 cl, 3 dwg