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This paper presents the implementation on a control of humanoid robot with human brainwaves as control input. This control technique is done with real-time measurements of the brain activity with electroencephalography and recognition of the signal types. The recognized signals are sent as control input to a custom build humanoid robot. The presented hardware of the robot combines main controller,...
Animal counting is often employed to estimate the population size and species diversity in a given area. This work makes a start at the unsupervised segregation of audio clips with a Self Organizing Map (SOM), using Speeded Up Robust Features (SURF) applied to audio spectrograms as inputs. Further work is required for a functional algorithm.
In 1971 Leon Chua reasoned from symmetry arguments that there should be a fourth fundamental element, which he called a memristor (short for memory resistor). Although he showed that such an element has many interesting and valuable circuit properties, until 2008 no one has presented either a useful physical model or an example of a memristor. In the paper in Nature (2008) the team of Stan Williams...
Describing an Artificial Neural Network (ANN) using VHDL allows a further implementation of such a system on FPGA. Indeed, the principal point of using FPGA for ANNs is flexibility that gives it an advantage toward other systems like ASICS which are entirely dedicated to one unique architecture and allowance to parallel programming, which is inherent to ANN calculation system and one of their advantages...
In this paper the mutual inductive and capacitive connections and tolerances of memristor parameters of a memristor memory matrix are investigated. An equivalent circuit of three neighboring memristors of a memory matrix with complicated mutual capacitive and inductive connection is presented. Then the memristor's own parasitic capacitance and inductance are described. The mutual capacitances between...
In this paper a PSPICE model of the equivalent circuit of the titanium-dioxide memristor is created based on its current-voltage relationship and using linear ionic drift model. By use of this computer model a Wien memristor generator is created. The oscillator circuit is analyzed and the basic relationships and time diagrams are given. The phase portrait of the system is also presented. The regulation...
In this paper an approach for validation of potential limit cycles of high order Sigma-Delta modulators is presented. The approach is an extension of a previous authors work and is based on a parallel decomposition of the modulator. In this representation, the general N-th order modulator is transformed into a decomposition of low order, generally complex modulators, which interact only through the...
Electrostatic field is a particular case of the electromagnetic field. The problems, solved in electrostatics, are concerned with determining the laws of variation of the electric field intensity E and electric potential V in all analyzed points in the field considered. Thus, it assumes that the potentials and the geometry dimensions of the objects, generating the field, are known. In this paper a...
The conversion of symbolic sequences into complex genomic signals reveals surprising regularities of genomes, both locally and at a global scale. This approach allows usage of standard signal processing methods for the nucleotide sequences analysis and specifically for the prediction of nucleotides when knowing the preceding ones in a sequence. In this paper we propose variety of methods and ways...
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