Method of selecting noise diodes using measuring device for generator of random numbers

FIELD: physics.

SUBSTANCE: method contains stages, at which the list of statistical characteristics of the numeric sequence is set, that includes at least an mathematical expectation and a dispersion of the logical unit occurrence frequency in a bit numerical sequence; for each diode from a set of the similar diodes: a diode is noted from a set of the similar diodes, the diode is set in the analogue noise generator of the measuring device; statistical characteristics of the numeric sequence is received, related to the detected diode, at the output of the measuring device; the data of the statistical characteristics of the detected diode is saved; a pair of diodes is selected from the set, performing the following actions: a pair of diodes is noted having the maximum difference of the mathematical expectation with a perfect value and the minimum difference of the expected values in the pair; a pair of the diodes having the minimum difference values of the dispersion is selected from the set of pairs of the diodes with a minimum difference of the mathematical expectations, the position of the selected pair diodes is determined in the analogue noise generators of the random number generator, performing the following actions: the diodes from the selected pair are set in the analogue noise generators based on the random selection, the details of the set diodes are noted for each of the analogue noise generator (position 1), the mathematical expectation of the number sequence is received at the output of the random number generator, its value is saved, the diodes are swapped in the analogue noise generators, the details of the set diodes are noted for each of the analogue noise generator (position 2), the mathematical expectation of the number sequence is received at the output of the random number generator, the value of the mathematical expectation of the numerical sequence is compared at the output of the random number generator for position 1 and position 2, the position of the diodes with the minimum deviation from the set value of the mathematical expectation and with the minimum deviation from the set value of the dispersion of the numeric sequence are selected at the output of the random number generator, the diodes are set in the selected position in the analogue noise generators for use in the random number generator.

EFFECT: simplification of the process of preparing a random number generator for a subsequent work.

2 dwg, 4 tbl

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: chaotic oscillation generator contains two inductive elements, two capacitors, two resistors, a semiconductor voltage converter by means of which the characteristics of generated oscillations are regulated, and a load.

EFFECT: providing of signal modelling described by piecewise and linear differential equations characterizing the occurring periodic, quasi-periodic and chaotic oscillations.

2 cl, 5 dwg

Function generator // 2541147

FIELD: radio engineering, communication.

SUBSTANCE: function generator comprises a comparator circuit, a multiplier, a first adder, first and second controlled integrators, an inverter, a relay element, first and second squaring devices, a second adder, a square-root computer and a triangular waveform generator.

EFFECT: broader functional capabilities and maintaining high linearity of a triangular waveform with variation of the amplitude of quadrature harmonic signals in a wide range.

2 cl, 4 dwg

FIELD: measurement equipment.

SUBSTANCE: self-oscillation generator by Prokofyev includes an LC oscillating circuit, a scaling operating amplifier, a non-linear feedback that includes a resistive summing network for two inputs, a normally open fixed contact of an electronic switch of a pulse non-linear element that includes a RS trigger and two comparators, chains of introduction of special initial conditions of regulated oscillations (RO), which consist of a single toggle switch of RO+ and RO- modes, a double start-up toggle switch and resistors, control voltage potentiometer A, voltage sources, a start-up capacitor; regulated stabilised self-oscillations, which are steady-state as to amplitude at the output of the scaling operating amplifier, are determined with the specified ratios of parameters of the elements expressed in the form of mathematical expressions.

EFFECT: enlarging the application area of regulated oscillations.

4 dwg

FIELD: information technologies.

SUBSTANCE: analytical method is created to produce signal probability distribution function (PDF) at the system output (initial system). This method is applicable, if: the system is described by analytical function; the system depends on accidental value; PDF of accidental value at the system input is available. There is an inverse function to function that describes system. Created method solves the following formal task. To produce PDF analytically for specified function y(x), if PDF of accidental value x in the interval [a,b] is available.

EFFECT: increased accuracy of production of probability characteristics of initial signal.

1 dwg

FIELD: measurement technology; generating test signals with preset probability characteristics.

SUBSTANCE: proposed method for generating test signal incorporating desired distribution probability function F(x) concerning occurrence of instant test signal amplitude values x(t) depends on generation of original signal r(t) with uniform distribution of instant amplitude values within the range of 0 to 1 and its functional conversion; generated as original signal r(t) is determinated signal with period T0 for which purpose signal φ(t) varied obeying known law and using desired algorithm is functionally converted.

EFFECT: enhanced precision of generated signal incorporating desired probability distribution function.

1 cl

FIELD: engineering of specialized computer means, possible use for engineering generator equipment, and also solving boundary problems of mathematical physics.

SUBSTANCE: device contains three integrators, multiplication blocks, adder, inverter, analog-digital converter, five analog-digital converters of first group, three analog-digital converters of second group and two memory blocks.

EFFECT: expanded functional capabilities due to reproduction of all classes of orthogonal functions, being solutions of second-order differential equations.

1 dwg, 1 tbl

Functions generator // 2277718

FIELD: electric communication area, in particular, engineering of orthogonal functions generators, possible use for engineering generator equipment for communication systems.

SUBSTANCE: generator of functions contains set-point generator, block for forming Walsh functions, element of one-sided conductivity, two-bit shift register, two-input commutator, multiplier and 2n group multipliers.

EFFECT: increased energetic concealment of signals, created by generator.

6 dwg

FIELD: automatics and computer science, possible use in information compression equipment in television, multi-channel communications, telemetry for representing varying messages and signals in Walsh basis.

SUBSTANCE: generator has set-point element, NOT element, shift register, function number register, AND element, trigger, n-digit counter and additional AND element.

EFFECT: simplified generator due to decreased number of triggers, used as shift register digits.

3 dwg, 4 tbl

The invention relates to techniques for generating electrical signals

The invention relates to the field of computer engineering and can be used in communications

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to the field of automatic equipment and computer facilities, cryptographic coding and information transmission and can be used for creation of generators of random sequences of impulses of long non-repeating duration. The device contains the timing unit, the control and configuration unit, the unit of generation of pseudorandom sequences, the unit of software setting of structure of feedback and initial condition of the generation unit, the unit of software setting of the code of structure of output sequence, the unit of analysis of structure of output sequence, the code comparison unit.

EFFECT: providing of formation of non-repeating random sequences of long length with the characteristics determined by the software set codes of structure of output sequence.

2 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering and can be used to generate pseudorandom number streams. The apparatus includes a generator for obtaining an initial value and a pseudorandom number generator, which includes a device for computing a pseudorandom number stream, a means of computing pseudorandom number bits from coordinates of a unit square, a means of generating an original of an n-bit pseudorandom number from n bits of a pseudorandom number, a means of recording in intermediate registers, a means of shifting register bits, a memory element, a means of recording pseudorandom numbers into the memory element, a means of generating a pseudorandom number stream from the pseudorandom numbers recorded in the memory, a means of transmitting a pseudorandom number stream to a computing device.

EFFECT: enabling generation of N initial values and absence of correlations when said values are used between at least N pseudorandom number streams.

3 cl, 3 dwg

FIELD: physics, computer engineering.

SUBSTANCE: present invention relates to a random number generator for providing a random number and/or a combination of random numbers and/or an array of random numbers. The random number generator comprises a monitoring device for monitoring at least one professional/workshop sport game, wherein the professional/workshop sport game can be conducted with at least one participant that provides at least one game result, wherein the monitoring device comprises means of determining the game result and a device for determining a random number and/or a combination of random numbers and/or an array of random numbers from another one of determined game results.

EFFECT: high reliability of data provided and displayed during a game.

17 cl, 3 dwg

FIELD: physics.

SUBSTANCE: proposed generator comprises extra h/3 one-type nonlinear inverters with three data inputs and two outputs, hmod3=0 and unit of h multiplexers with two data inputs and common control input. Every said nonlinear inverter includes inverter, four functional converters and four AND-gates per two inputs.

EFFECT: enhanced performances.

3 dwg, 1 tbl

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering and can be used to generate broadband random stationary signals with given characteristic and cross-spectral power densities. The apparatus comprises a single-processor computer, software for generating, based on given spectral densities Sx(f) and Sy(f), random signals in Rice-Pearson decomposition form with random phases Θi and Ωi at each harmonic fi, the phases defined by random sampling of a random value, one of which - Θi for the signal x(t) is uniformly distributed in the range [-π, π], and the other - Ωi for the second signal y(t) is defined as the sum Ωii+Δφi of the random value Θi and the random value Δφi, uniformly distributed in the range [-φi, φi], the boundaries of which are defined through the cross-spectral density Sxy(f) of random signals x(t) and y(t), followed by an inverse fast Fourier transform procedure, a digital-to-analogue converter module for converting the generated digital signals into analogue signals of the generator.

EFFECT: generating two random signals with a given coherence function.

1 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to methods of generating broadband random processes with given eigen and cross spectral power densities and can be used in instrument-making, mechanical engineering and computer engineering for designing multichannel automatic systems, in vibration tests for resistance to random vibrations. The method includes generating, in the time domain at given spectral densities Sx(f) and Sy(f), stationary random signals x(f), y(t) in Rice-Pearson decomposition form with random phases Θi and Ωi at each harmonic fi, the phases defined by random sampling of a random value, one of which - Θi for the signal x(t) is uniformly distributed in the range [-π, π], and the other - Ωi for the second signal y(t) is defined as the sum Ωii+Δφi of the random value Θi and the random value Δφi, uniformly distributed in the range [-φi, φi], the boundaries of which are defined through the cross spectral density Sxy(f) of random signals x(t) and y(t).

EFFECT: generating two random signals with a given coherence function.

1 dwg

FIELD: electricity.

SUBSTANCE: device comprises the first selector/multiplexor, the second selector/multiplexor, the first register, randomizing machine, random access memory, K≥2 interval boundary storage units, K comparator units, priority encoders, N≥1 inverters, the second register.

EFFECT: development of generator ensuring generation of values sequence out of the preset plurality of values considering probabilistic connection of each successive value with the previous one.

2 dwg

FIELD: physics, computer engineering.

SUBSTANCE: disclosed method and apparatus relate to electronic detectors which detect changes in ambient electromagnetic background. The main field of application is determining the emotional state of consciousness, entertainment and electronic games with interactive control, equipment for solutions in the field of decorative and designer works, for interior installations and lighting devices. The detection method is characterised by that an initial electric signal is emitted from a noise source which, through amplification and filtration, is converted to a random pulse sequence consisting of high- and low-level voltage pulses, which is converted to a sequence of numerical values; the numerical values from said sequence are sampled over a certain time interval and the detected signal is obtained by analysing the numerical values in the sample, wherein the sequence of numerical values is obtained by calculating over a given time interval the difference between duration of the high- and low-level voltage pulses of the random pulse sequence, and the detected signal is obtained by calculating the variance of numerical values in the sample. The apparatus comprises a noise signal source, three amplifiers, a microprocessor unit which calculates variance and analyses it, two frequency-dependent circuits and a LED indicator.

EFFECT: high sensitivity and reliability of detection.

6 cl, 1 dwg

FIELD: information technology.

SUBSTANCE: method involves presenting input 1 and output 2 data blocks, all intermediate results S of conversions and round keys (RoundKeys) 30, 31 32, 33 in form of a cubic array of bytes 4×4×4, defining a Layer 4 concept - quadratic array of bytes 4×4, presenting the first round key in form of four sub-keys (RoundSubKeys) 3i0, 3i1, 3i2, 3i3, i=1, 2, 3, each of which is in essence a quadratic array of bytes 4×4, adding 10 (XOR) the data block 1 with round key 30, three-dimensional conversion of the data block on layers 4x0, 4x1, 4X2, 4x3, 4y0, 4y1, 4y2, 4y3, 4z0, 4z1, 4z2, 4z3 respectively along x, y and z axes, including, in the procedure for two-dimensional conversion of layer 5 (T-Layer), four steps: replacing 6 bytes (SubBytes), mixing 7 rows (MixRows), mixing 8 columns (MixColumns), adding (XOR) 9 to a round sub-key (AddRoundSubKey).

EFFECT: high cryptographic robustness and faster nonlinear conversion.

4 dwg, 1 tbl

FIELD: information technology.

SUBSTANCE: device consists of identical combinational circuits operating in ternary logic, having two input and one output, combined into a ring circuit, wherein the output of each circuit is connected to the input of the same circuit and the input of the next circuit in a ring connection. A ternary signal with uniform distribution is obtained from any output of the circuit.

EFFECT: faster operation of the generator.

2 dwg, 2 tbl

FIELD: information technology.

SUBSTANCE: presented positions are provided by using a novel interval-positional characteristic of modular arithmetic, which approximates the relative value of a number in a modular presentation from two sides. The device comprises groups of input registers for storing modular numbers to be compared, units for calculating interval-positional characteristics, a unit for bitwise comparison of modular numbers, units for verifying interval-positional characteristics, a unit for comparing interval-positional characteristics and a two-input binary decoder.

EFFECT: faster operation and enabling verification of a comparison result.

4 dwg

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