Sorokin O. The increase of efficiency of the spread spectrum radiosignals application in the systems of the data transmission

Object - telecommunication systems with the increased hiding; objective - developing of the method of forming the spread spectrum signal that provides the increase of hiding of radiation of the data transmission systems and the power efficiency of the means of forming, processing and amplification of the radiosignal; methods - methods of the mathematical analysis and simulation modeling, the theory of radio signals and systems, the probability theory and the theory of mathematical statistics, digital processing of the signals and circuitry technology; results and novelty - the results of the analysis of the influence of the spread spectrum radiosignals characteristics on hiding, interference immunity, power efficiency of the data transmission systems were generalized in this work; the method of the spectrum spreading for the forming of the radiosignal with the large base on the basis of the three - position frequency modulation with the constant phase with the optimization of correlated and spectrul characteristics was developed; the method of optimization of the spread spectrum radiosignals characteristics was developed. This method takes into account the necessity to increase spectral density power rectangularity, flatness of the spectral density power in the area of the main lobe and to keep the gain of the signal processing; as the result of the use of the radiosignals formed in accordance with the developed method: the hiding of the data transmission systems work increases; the requirements to the computing performance of the digital means of the signal forming and to the linearity of the power amplifier are reduced and this will make it possible to reduce the power consumption; branch - technical sciences, telecommunications.