INVESTIGATION OF PECULIARITIES OF RANGE ALGORITHMS AND DETERMINING OPPORTUNITIES FOR USE IN NGN NETWORKS
Journal Title: Телекомунікаційні та інформаційні технології - Year 2018, Vol 141, Issue 1
Abstract
The basic properties of ranks and rank statistics are analyzed. The property of invariance of ranks on the example of a harmonic signal with a random initial phase is considered. An example of signal ranking is considered. It is shown that the distribution of ranks is invariant to the type of initial distribution only if the elements of the ranked samples are statistically homogeneous. In all cases, the elements of the samples are statistically independent, i.e. their distribution does not depend on the element number. The nonlinear transformation characteristic corresponds to the integral impedance distribution function, and the ranking according to the algorithm is equivalent to the actual distribution of the sample, which, depending on the situation, may be a disturbance of the disturbance or mixture of the interference signal. The restrictions on the scope of rank procedures in comparison with optimal invariant transformations are analyzed. First of all, it is necessary that, in the absence of a signal, the ranked sample was statistically homogeneous. This ensures a stabilization of the level of false alarms with an a priori unknown distribution. But it is equally important that the appearance of the signal destabilizes the homogeneity of the sample. Despite the reduction in the number of informative readings, the sensitivity of the distribution of ranks in the presence of a signal not only did not decrease, but even increased, which is an essential principle for organizing the procedure for detecting a signal based on ranks. Flexibility of the ranking procedure provides the possibility of solving a wide range of signal detection tasks under conditions of nonparametric a priori uncertainty.
Authors and Affiliations
Olha Tkachenko
Keywords
Related Articles
- EP ID EP461109
- DOI -
- Views 90
- Downloads 0
MANIPULATION CODING OF SIGNAL OF N-DIMENSIONAL MULTI-POSITION CONSTELLATIONS ON THE BASIS OF OPTIMAL BY NOISE IMMUNITY REGULAR STRUCTURES
An urgent issue today is the introduction of mobile broadband access equipment on the telecommunications network of the fourth and fifth generation (LTE). In this paper, we consider methods for the optimal inscribing of...
The problem of plasma’s environment geometry of pulsed media telecommunications formation
In article the approach of the required geometry of artificial low-temperature plasma environment of impulse radio and telecommunications formation is considered. Parameters of current and tension depending on pressure o...
Features of choosing the chaotic systems for constructing generators of pseudo-random numbers
In the paper are emphasized the basic criteria which the chaotic systems must pass for their use in the constructing of cryptographic applications. On example of logistic map it is shown, that to estimate the power of th...
Is there a perfect steganographic hiding of information exchange?
We consider the classical problem of steganography – organization of maximal hidden (secret) information transmission via insecure channels. There is a fundamentally important aspect in this task,i.e.protection from iden...
Method of indemnification phase noises the system PLL of frequency
Digital systems PLL frequency widely and effectively are used in the synthesizers of frequencies the modern radiotechnical systems (mobile, satellite and trunking communication and also in the perspective military radiot...