About one method of suppression of passive hindrances

Using difficult signals we get possibility of indemnification of passive hindrances in the single-channel system of radio monitoring due to the use of correlation and spectral characteristics of certain class of difficult signals. One type of such signals are polyphase signals formed on the base of generalized Frankpsilas codes (GFC) with parameters p=0, 5. The algorithm of forming of such signals is offered by authors, and the results of researches of such signals are published in [1].