A channel characteristic mcns method for uwoc system based on space coordinate transformation technology
A transformation technology, a technology of channel characteristics, applied in optical transmission systems, transmission monitoring/testing/fault measurement systems, etc., can solve problems such as inability to make accurate judgments, and achieve accurate calculation and fast channel characteristics.
Active Publication Date: 2022-06-21
HOHAI UNIV
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This method uses the idea of "coordinate rotation" in plane analytic geometry to construct an equivalent symmetric receiving and receiving system for photons, that is, to emit photons in the original asymmetric coordinate system, but to convert the decision of the photon to a new symmetric coordinate system through the coordinate rotation method method, this method can skillfully solve the above-mentioned problems that cannot be accurately judged
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[0051] The present invention will be further described below in conjunction with specific embodiments.
[0052] In this paper, a three-dimensional Cartesian coordinate system is used to construct the transceiver system, and we assume that the system is located in a clear ocean water quality environment. Without loss of generality, we assume that the initial photon emission plane is the X-Y plane, the beam travels in the positive direction of the Z axis, the initial weight of a single photon is 1, and the weight threshold of the photon is 10 -4 .
[0053] like Figure 2-3 As shown, a UWOC system channel characteristic MCNS method based on space coordinate transformation technology, that is, in the asymmetric space rectangular coordinate system x of the original transceiver system 1 -y 1 -z 1 Simulate the collision and scattering motion process of photons, and then transform the photon motion results of each step into the new symmetrical space Cartesian coordinate system x o...
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The invention discloses a UOWC system channel characteristic MCNS method based on space coordinate transformation technology, based on the coordinate transformation technology, a receiver plane has a certain inclination angle relative to the incident optical axis and has a FOV UOWC system channel characteristic Monte Carlo simulation method. This method uses the idea of "coordinate rotation" in plane analytic geometry to construct an equivalent symmetric receiving and receiving system for photons, that is, to emit photons in the original asymmetric coordinate system, but to convert the decision of the photon to a new symmetric coordinate system through the coordinate rotation method This method can skillfully solve the above-mentioned problems that cannot be accurately judged. The invention provides a fast and accurate calculation method for the Monte Carlo channel characteristic of the UOWC system, and makes up for the deficiency of the traditional simulation algorithm.
Description
technical field [0001] The invention relates to a UWOC system channel characteristic MCNS method based on the space coordinate transformation technology, and belongs to the technical field of wireless optical communication. Background technique [0002] In recent years, with the rapid development of wireless communication technology and the deepening of the exploration of marine resources in various countries, people's demand for underwater high-speed and reliable wireless communication has become more and more urgent. Under this background, Underwater Wireless Optical Communication (UWOC) has attracted many scientific researchers due to its huge advantages such as high transmission rate, large bandwidth and low delay compared with traditional underwater acoustic and short-range radio frequency communication. It has gradually become a new research hotspot and frontier of technological exploration in the field of wireless communication. Among the many technical problems to b...
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IPC IPC(8): H04B10/80H04B10/07
CPCH04B10/80H04B10/07
Inventor 史宏强李岳衡黄平刘陕陕谭跃跃居美艳
Owner HOHAI UNIV