Vol 10, No 4 (2012)

The article provides a brief review of existing methods for increasing security of the CSCDMA. To improve the technical characteristics of these systems the algorithm estimates the statistical properties of the correlation functions of the ensemble of discrete orthogonal signals, which are detailed in the article. Advantages of the new algorithm is that it allows you to use the average estimate of the inter-correlation and autocorrelation properties of an ensemble of signals in general, and visualize the results of calculations in assessing the intercorrelation and autocorrelation properties of a large number of ensembles of discrete orthogonal signals.

In this paper the application of dense dispersion management regime for Radio-over-Fiber (RoF) systems was proposed. The influence of the dispersion map parameters on RoF signal quality was investigated.

In article results of researches of a problem of providing demanded parameters of productivity and quality of service in a perspective segment of program configured networks are presented. General provisions concerning QoS realization in switchboards of various producers are given, decisions on the basis of features of implementation of the OpenFlow protocol of version 1.0 are proved and offered.

Method of texture segmentation of aerospace images based on two-dimensional Markov processes is offered. As a textural feature the probability of transition between image elements is used. The method of segmentation has been researched experimentally and compared with known contour methods (Canny, Sobel, Laplacian gausian). The method effectively allocates texture regions with different statistical characteristics and allows to reduce computing resources.

Competition inside a corporation staff is considered like potential threat to it economic security. Verbal and mathematical risk models associated with intracorporate competition are presented.

The paper deals with the problem of analyzing the nonlinear distortions caused by the high power amplifier (or other nonlinear devices) and additive gaussian noise in direct-sequence code-division multiple access (DS-CDMA) systems. The results of analysis are presented in the form of bit error rate vs signal-to-noise ratio and chip error rate vs signal-to-noise ratio charateristics.

In this paper proposed for the quantitative characteristics of the safe operation of telecommunication systems and complex, according to which the decision can be made about the safety of operation.

In article planning and management problems business-economic activities the enterprises are considered. For the decision of the activity organization problems is offered to use the concept of the balanced system of indicators (BSI). On the basis of the BSI concept the structure of management model business-economic activities is developed.

In the article technical implementation principles of the telemetry system are described, witch applied to automated motordromes designing. Hardware and technology choice problems are solved, scope of further inquiries is defined.