Unlock instant, AI-driven research and patent intelligence for your innovation.

Complementary S-shaped matrix code modulation method for micro lens array spectrometer

A technology of matrix coding and micromirror array, which is applied in spectrometry/spectrophotometry/monochromator, instruments, scientific instruments, etc. question

Inactive Publication Date: 2014-12-31
CHONGQING UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The H matrix is ​​known as the best coding matrix because of its high signal-to-noise ratio, but it is not widely used due to the shortcomings of non-circulation, complex coding, and difficulty in realizing the dual-optical system; the S matrix relies on cyclic coding , the advantage of being simple and easy to implement has become the widely used coding matrix at present, but its signal-to-noise ratio is only half of that of the H matrix

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Complementary S-shaped matrix code modulation method for micro lens array spectrometer
  • Complementary S-shaped matrix code modulation method for micro lens array spectrometer
  • Complementary S-shaped matrix code modulation method for micro lens array spectrometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0052] A method for performing complementary S-matrix code modulation on a micromirror array spectrometer, characterized in that it mainly includes the following steps:

[0053] 1) Construction and principle of complementary S matrix:

[0054] Hadamard transform theory uses a method of combined measurement of spectral signals to reduce the influence of noise. And this combined gating is realized by controlling the "on" and "off" of the digital micromirror through the coding matrix: when the matrix element "1" is loaded on a certain micromirror unit, it allows the spectrum to pass through, that is, The so-called "on" state, at this time, in addition to the spectral signal, there are some noise signals in the signal detected by the detector; when the matrix element "0" is loaded on a micromirror unit, it is the corresponding "off" State, at this time the dete...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a complementary S-shaped matrix code modulation method for a micro lens array spectrometer. The complementary S-shaped matrix code modulation method for the micro lens array spectrometer includes the steps of construction of a complementary S-shaped matrix and principle of the complementary S-shaped matrix, analysis of noise improvement effect of the complementary S-shaped matrix, and realization process of the complementary S-shaped matrix. The complementary S-shaped matrix is a code template and combined with the advantages of the H-shaped matrix and S-shaped matrix. The system configuration is simple, and prone to realizing. And stray light and dark current noise of the system can be reduced and optimization of combination of theory and practice is realized. The code method can be applied widely and can be used in well developed all kinds of micro lens array spectrometers.

Description

technical field [0001] The invention relates to a method for coding and modulating a micromirror array spectrometer with a complementary S matrix. The excellent properties of the matrix itself can improve the degree of noise improvement by about times, and the method has the effect of reducing system stray light and dark current noise during the implementation process, and can be widely used in various micromirror array spectrometer equipment. technical background [0002] Hadamard transform technology is a digital spectrum modulation technology based on the weighing design theory, which combines and measures the spectrum to increase the luminous flux and improve the signal-to-noise ratio. Coding technology is the primary consideration in its application. At present, there are two kinds of Hadamard coding matrices commonly used: H matrix and S matrix. The H matrix is ​​known as the best coding matrix because of its high signal-to-noise ratio, but it is not widely used due ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/02
Inventor 张智海高玲肖张文凯
Owner CHONGQING UNIV