Vol 21, No 2 (2015)

The article describes the tensor approach to the study of complex systems in terms of Petri nets. Introduced the concept of different systems, which represent the original SP-structure and its derivatives in different coordinate systems. It is shown that using tensor methods, greatly simplifies the procedure of construction of possible structures of the studied complex systems in the coordinate system of the primitive system, and makes routine transformation of new structures of complex systems in the original coordinate system. The described approach provides new opportunities to build methods for synthesis of structures of complex systems.

For clustering multidimensional trajectories polynomial regression method with parameter leaning by the Expectation-Maximization algorithm is in use. The method based on polynomial regression is characterized by the joint clustering and continuous alignment of curve sets in time and space. Nevertheless, a number of defined clusters can’t be large enough. Thus, for a set of sufficiently heterogeneous trajectories, the defined clusters are heterogeneous also. For the inhomogeneous cluster, its polynomial regression is a too strong abstraction. To demonstrate rhe cluster heterogeneity (and, thus, non full clustering trajectories) a method of dimension reducing is in need. So, linear dynamical system models are applied to object multi dimensional trajectory’ clustering by polynomial regression method. An advantage of linear dynamical systems is reducing clustering result dimension. For trajectory coordinate projections in a cluster most informative component (polynomial regression) is extracted and the cluster fine structure is appeared. An efficiency of linear dynamical systems is demonstrated by example of clustering results of airplane flight tracks in an airport space.

As part of the system of "resource—consumer" is developed the model of dynamics of fish growth. To construct it, we used: the maximum length of the fish, the stages of their life cycle and the impact of seasonal factors. The parametric identification of the model is performed. According to her is carried out the assessment of the statistical properties of the model parameters,is established the adequacy between the empirical distribution and its model image. On the based of computational experiments the assessment the assessment of duration of the life cycle period.

The paper covers the macroobject approach to reconfigurable computer system (RCS) programming, which reduces the programming time of tasks owing to reduction of the translation rime of parallel programs. The description of rhe main advantages and shortcomings of the existing RCS programming levels are given. We have analysed rhe notion of a soft-architecture, a macroobject, a node and objects of reconfigurable computer systems. We have given rhe structure of system software owing to which the suggested approach to RCS programming is provided. In addition we have described functions of the elements of the software suit and their interconnection during development of soft-architectures, and use of soft-architectures for implementation of application tasks. The development of rhe soft-architecture for digital signal processing tasks is analysed, and examples of SADL-descriptions of soft-architecture elements are given. The example of rhe soft-architecture used for implementation of digital signal processing tasks is given. Besides, we have given the description of one card of the parallel application, written in the high-level programming language CO LAMO. It implements the TFT algorithm on rhe base of the DSP soft-architecture.

This paper will discuss and evaluate an approach to building an object-mapping layer that provides integration of multiple different data management systems, including SQL-based DBMSs and popular NoSQL systems. A prototype object-mapping framework was developed to illustrate basic concepts of such integration including unified entity-based query' language, transparent object mapping and a high-level interface, that still allows low-level optimizations and delivers sufficient performance for most use cases. Unified query language makes it possible to translate a single query to different underlying data stores without a need to modify the query while object-mapping layer manages object construction and lifecycle, providing simple interface for persisting, modify ing and deletion of objects. In conclusion, performance of the implemented framework is measured and compared with popular ORM solution.

On improving immunity has always been given priority in the development of radio communication. Among the well-known modulation formats is the most error-correcting binary phase shift keying is used extensively to radio HF VHF hands. Advances in the multiresolution analysis suggest that the synthesis signal on the basis of wavelets allow to obtain modulation formats with high noise immunity properties. It can be argued that the wavelet signals provide additional structural secrecy in relation to systems analysis using other functional bases of processing radio signals.

In this regard, the article discusses the synthesis of phase-shift keyed signals based on wavelet and study their immunity in an additive white Gaussian noise.

The very' same synthesis procedure is as follows. Forming a carrier wave of a certain frequency, which in accordance with a predetermined manipulation speed is changed according to the value of the phase information sequence of logical ones and zeros. As the chip is proposed to use fragments offirst-order Gaussian wavelet that represents the first derivative of the Gaussian function.

Localization properties of the wavelet in time and bilateral temporal structure allow it to form the basis of fluctuations, which can also he regarded as a phase-shift keyed signals.

To estimate the noise immunity of the proposed PSK-2 wavelet design was defined channel with A WGN. As the initial capacity of the fragment was determined based on the sine wave signal generated by the quadrature. Amplitude sine wave was timebase f2. To provide similar facilities for fragment-based wavelet, its amplitude was increased to a level of 2,S4. High immunity to ensuring wavelet signals only when the receiving end of the correlation processing is performed in the wavelet base functions.

Synthesis of signals based on the fragments of wavelets allows to obtain the modulated vibration immunity which exceeds 2 dB potentially possible indicators for PSK-2 signals. If considered as modulating fragments offirst-order Gaussian wavelets, the win in order to provide additional structural secrecy of the order of I dB.

Further studies are seen in the development of effective methods of wavelet signal demodulation.

The author of this article is not a physicist or a mathematician. He is an engineer and has 50 years of experience in neural network technologies and their application. This is a rather narrow class of over high performance computing. This article presents the author’s opinion about the prospects of this trend of super computing with the memristor invention.