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Method of signal measurement by means of chaos mapping and chaos mapping analog-to-digital converter

An analog-to-digital converter and chaotic mapping technology, applied in the direction of analog-to-digital converters, etc., can solve the problems of staying, unable to find, difficult to achieve system calibration and accuracy, etc.

Inactive Publication Date: 2006-07-19
凌齐文
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Problems solved by technology

[0010] However, the existing methods are based on the definition of the orbital symbol sequence functional space and its orbital distance in the functional space. Since the corresponding reference system cannot be found, it is difficult to achieve the same system calibration as the existing linear A / D converter. The assessment of indicators such as accuracy and accuracy, that is, the relationship between the above-mentioned symbol sequence and the magnitude of the analog signal is difficult to determine, so it has been stuck in the laboratory research stage, and cannot have practical value for engineering measurement

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  • Method of signal measurement by means of chaos mapping and chaos mapping analog-to-digital converter
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  • Method of signal measurement by means of chaos mapping and chaos mapping analog-to-digital converter

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Embodiment Construction

[0035] According to the applicant's research, in the rules for extracting the symbol sequence from the chaotic orbit, the following three rules need to be supplemented on the basis of the two rules disclosed in the prior art: a) when the voltage comparator flipping moment is equal to a period of When the clock pulse signal δ of τ arrives at the same time, the symbol takes 1; b) When the voltage comparator flips and the two clock pulse signals δ of period τ arrive at the same time, in addition to taking the symbol 1, a symbol 0 is added. c) When the measured signal value is close to the zero point of the voltage comparator OP, a 0 needs to be added to the highest bit in the track symbol sequence. (The actual circuit is affected by the sensitivity of the comparator. The first zero-crossing flip moment of the obtained track symbol sequence will be between two clock cycles and three clock cycles, and this 0 cannot be measured)

[0036] The method for carrying out signal measuremen...

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Abstract

The invention relates to a method for using chaos projection to detect the signal and a relative chaos projection analogue-digital converter. The method comprises: setting the analogue-digital conversion effective number N; extracting N mark sequence of initial section from the chaos track mark sequence, to be recorded as DN; transforming the SN as the parameter formula into the standard binary system sequence relative to the digital valve of said analogue signal, while said parameter formula is union of (intersection of SN and SN10) and (intersection of (SN01-SN) and SN01), while the SN10 is N cycle sequence based on 10. The invention adds a conversion circuit in the chaos detection circuit, and uses logical circuit. The invention builds a system detection parameter system on the chaos detection circuit to mark the system. And the invention can transform the chaos projection track mark sequence to the standard binary system sequence relative analogue signal valve.

Description

technical field [0001] The invention relates to the field of chaos measurement, in particular to a chaos mapping analog-to-digital conversion circuit and a method for measuring signals. Background technique [0002] The application of "chaos" theory to measurement is an application direction of nonlinear theory proposed in recent years, which is completely different from the existing linear measurement technology. The chaotic measurement system has initial value sensitivity and parameter sensitivity. In the case of constant parameters, different initial values ​​will produce different chaotic orbits. According to the principle of symbol dynamics, the corresponding orbit symbol sequence can be obtained. When the parameters are constant, there is a one-to-one correspondence between the orbit symbol sequence and the initial value, and the chaotic measurement theory is proposed based on this characteristic. [0003] In the article titled "An Improved Scheme of Chaos Measurement...

Claims

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Application Information

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IPC IPC(8): H03M1/12
Inventor 凌齐文
Owner 凌齐文
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