METHOD AND LINE FOR RADIO COMMUNICATIONS WITH PSEUDO-RANDOM ADJUSTMENT OF WORKING FREQUENCY Russian patent published in 2006 - IPC H04B1/10 

FIELD: radio communications, possible use in radio-technical communication systems in mode of broadband signals with pseudo-random adjustment of bearing radio frequency.

SUBSTANCE: in accordance to method, after broadband filtering, signal is sent to K similar parallel routes, in each of which signal is sequentially weakened in function from time and its narrowband filtering, while during a time span of incoming signal from transmitter from transmitter on adjustment frequency of frequency-adjusted band filter weakening is minimal, until receipt of signal from transmitter at aforementioned frequency, weakening monotonously decreases from maximal to minimal, after transmitter signal at same frequency is finished, weakening monotonously increases from minimal to maximal, output signals are summed and demodulated, for assuring synchronization between transmitter and receiver, signal is shifted for necessary value, and frequency adjustment for each one of band adjusted filters is performed less frequently in K times.

EFFECT: increased protection from interference from powerful frequency-concentrated interference.

15 dwg