ON ESTIMATION OF FREQUENCY PROPERTIES OF ONE CLASS OF BROADBAND NOISE-LIKE SIGNALS WITH LFM
Now, in the conditions of a continuous increase in information exchange between territorially distributed subscribers, there is a need to increase the efficiency of using the time-frequency resources of existing communication channels of various physical nature. However, when using narrowband signals in satellite communication systems using satellites in a highly elliptical orbit as carriers, the efficiency of using the allocated frequency-time resources of the communication channel is significantly reduced due to the large frequency uncertainty caused by the Doppler Effect and the time variations arrival of received signals. In this connection, the frequency properties of a class of broadband noise-like signals with LFM (BB NL with LFM), invariant to the Doppler mismatch in frequency, are considered in the real range of its variation. The use of this signal as an information carrier in these systems allows minimizing the cost of time-frequency resources of satellite communication channels due to the efficient use of the dedicated frequency band.
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