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Simulation model and modeling method of single photon imaging system based on backscattering model

A backscattering and imaging system technology, which is applied in design optimization/simulation, radio wave measurement system, use of re-radiation, etc., to achieve the effect of easy fitting and good simulation results

Active Publication Date: 2021-12-14
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The purpose of the present invention is to provide an underwater single-photon imaging simulation model and a model construction method based on a backscattering model, so as to solve the problem that the existing imaging system modeling method cannot accurately realize the modeling of the underwater single-photon imaging system

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  • Simulation model and modeling method of single photon imaging system based on backscattering model
  • Simulation model and modeling method of single photon imaging system based on backscattering model
  • Simulation model and modeling method of single photon imaging system based on backscattering model

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Embodiment Construction

[0063] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative efforts shall fall within the protection scope of the present invention.

[0064] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited ...

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Abstract

The invention relates to a single-photon imaging system simulation model and modeling method based on a backscattering model. It solves the problem that the existing imaging system modeling method cannot accurately realize the modeling of the underwater single-photon imaging system. The present invention determines the backscattered light power parameters by giving relevant parameters; then obtains the number of echo photons and background noise under the unit reflectivity, and considers the dark count of the system at the same time to form all the signals received by the single photon detector . Finally, the expectation of the echo signal is obtained through the observation equation, in which the response process of the system is modeled as a Poisson distribution, and the reference response function is designed as a Gaussian function model with exponential components, and then the simulation model of the underwater single-photon imaging system is obtained. Using this model, the imaging capability of the underwater single-photon imaging system for underwater targets under different device parameters and attenuation lengths can be verified through matched filtering, which has certain guidance and reference for future imaging with higher attenuation lengths.

Description

technical field [0001] The invention belongs to the technical field of underwater optical imaging, and relates to an underwater single-photon imaging system simulation model and a modeling method based on a backscattering model. Background technique [0002] Underwater target imaging technology is an important technical means for modern marine scientific research, underwater resource exploration and underwater military development. [0003] In underwater target imaging, the impact of water bodies and impurities in the water leads to serious energy attenuation of light in water, making the detection target energy extremely weak. Single-photon 3D imaging technology, as a relatively cutting-edge research field, can realize the imaging of complex scenes under extremely weak light conditions. Therefore, the underwater single-photon imaging system can realize the prospect of realizing high attenuation length imaging in the future. [0004] Compared with the application of single...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S17/89G01S7/48G06F30/20
CPCG01S17/89G01S7/4802G06F30/20
Inventor 马彩文张振扬苏秀琴陈松懋汪书潮
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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