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A Generating Method of True Random Signal

A technology of true random signal and generation method, applied in random number generator and other directions, can solve problems such as inability to achieve coherent control, and achieve the effect of broad application prospects

Active Publication Date: 2016-08-03
BEIJING INST OF STRUCTURE & ENVIRONMENT ENG +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the existing true random signal generation method cannot realize the coherent control of true random signals between different channels

Method used

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  • A Generating Method of True Random Signal
  • A Generating Method of True Random Signal
  • A Generating Method of True Random Signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The true random signal generation method of the present embodiment specifically includes the following steps:

[0041] Step (1) parameter setting

[0042] Parameters are set through the control computer, and the parameters that need to be set include: frequency range, reference spectral shape, channel number, inter-channel coherence coefficient, inter-channel coherent phase, frequency spectrum line number and magnitude.

[0043] Step (2) Obtain pseudo-random sequence

[0044] Step (2.1) converts the reference spectral shape, inter-channel coherence coefficient and inter-channel coherent phase into a cross-spectrum matrix by the following formula:

[0045] CPM ( l , k , j ) = PSD ( l ...

Embodiment 2

[0064] The difference between this embodiment and Embodiment 1 is that in step (3), the following operations are used to generate a true random signal through time-domain randomization:

[0065] Step (3.1) Randomly generate a set of position random numbers and a set of reverse random numbers.

[0066] Step (3.2) Take the value of the corresponding position of the pseudo-random sequence through the random number of the position and the value after this position A set of sequences is formed by the numerical values ​​of each position; multiply the inverted random number by a set of sequences of random numbers corresponding to the position to obtain a new set of sequences.

[0067] Step (3.3) performs windowing on a new set of random numbers corresponding to the same position, and the windowing type is optional, such as half-sine window, Hamming window, Haining window, etc.

[0068] In step (3.4), different groups of new sequences corresponding to random numbers in different pos...

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Abstract

The invention belongs to the technical field of structural strength and environmental reliability tests and particularly relates to a true random signal generating method. The method includes following steps: setting parameters; obtaining a pseudo random sequence; and generating true random signals by means of time-domain randomization. The true random signal generating method solves the technical problem that existing true random signal generating methods cannot realize coherent control of true random signals among different channels. By the true random signal generating method, coherent control of the true random signals among the different channels can be realized, generated true random signals accord with normal distribution, and the true random signal generating method has wide application prospects in numerous technical fields including structural strength and environmental reliability tests.

Description

technical field [0001] The invention belongs to the technical field of structural strength and environmental reliability tests, and in particular relates to a method for generating true random signals. Background technique [0002] A true random signal refers to a random voltage signal whose power spectrum conforms to a Gaussian distribution, and is widely used in control systems and verification systems in various fields. In the prior art, the above-mentioned control system and verification system generate multi-channel true random signals, but the true random signals of each channel can only be fully independent or fully correlated, and cannot maintain a certain coherence and phase relationship between channels, that is, The coherent control of true random signals between different channels cannot be realized, and the true random signals of coherent control between different channels cannot be realized. In the field of structural strength and environmental reliability test...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/58
Inventor 王璟南祝济之师培峰
Owner BEIJING INST OF STRUCTURE & ENVIRONMENT ENG
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