One of the Ways to Protect a Spread Spectrum Communication System from such Structural Interference

Abstract

Spread spectrum signals are used in communication systems for several decades with various purposes, one of the most important of them is noise immunity. In the general case, the noise immunity of a spread spectrum signal with respect to interference of a different nature is determined by its base. In connection with the rapid development of microwave electronics based on SDR technology, capable of recording the signal from the air, followed by amplification and radiation back, a class of interference has formed, which is an exact copy of the useful signal, protection against which is extremely difficult and relevant. The article is devoted to one of the methods for protecting a spread spectrum communication system from structural similar interference obtained by the described method.