Automatic radar simulated data simplifying method for simulation of marine simulator
A technology for simulating data and simulators, applied in electrical digital data processing, special data processing applications, instruments, etc., to achieve the effect of improving simulation efficiency and wide application prospects
Active Publication Date: 2014-03-19
DALIAN MARITIME UNIVERSITY
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[0013] In view of the defects in the prior art, the purpose of the present invention is to provide a method for simplifying radar simulation data used in navigation simulators, which is used to realize the automatic simplification of radar simulation data in navigation simulators; the simplification method can largely Improve the efficiency and accuracy of data processing and the display efficiency of radar images in navigation simulators; at the same time, it can automatically extract the characteristics of artificial coastlines and natural coastlines and simplify them separately, effectively avoiding image intersection and topology existing in algorithms in similar fields Variation problem
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[0032] Below in conjunction with accompanying drawing and attached table, technical scheme of the present invention is described further:
[0033] Such as figure 1 As shown, this method includes three steps, raw data extraction and feature analysis, overall feature extraction, and local feature extraction. The first step extracts the coastline data of the electronic chart through the extraction algorithm, and performs statistical analysis on the original coastline data to endow it with quantitative features; Control, identifying the natural and artificial shorelines and completely retaining the artificial shorelines; the last step is to extract local feature points through a local optimization algorithm to achieve accurate simplification of the natural coastline while ensuring the efficiency of simplification.
[0034] The details are as follows:
[0035] 1. Extract the original coastline data and perform feature analysis: extract the coastline data from the international st...
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The invention discloses an automatic radar simulated data simplifying method for simulation of a marine simulator. The method comprises the steps of 1, extracting original shoreline data, and conducting characteristic analysis on the original shoreline data, wherein characteristic values are given to the extracted shoreline data, and statistic analysis is conducted; 2, conducting extraction of overall characteristics, wherein a forward length control and shoreline bending identification method is adopted to distinguish an artificial shoreline and a natural shoreline, and an accumulation bending degree control method is used for ensuring that bending of each section of data obtained after the data are sectioned is monotonous and a spiral line is not formed; 3, conducting local characteristic point extraction, wherein an exploration algorithm with area loss degree being control parameters is used for conducting local characteristic point extraction on the data section formed by a plurality of characteristic data points obtained after the overall subsection process. The automatic radar simulated data simplifying method for simulation of the marine simulator can completely reserve geometrical characteristics of the artificial shoreline, and the natural shoreline is precisely and efficiently simplified; the problems that handwork processing efficiency is low and precision cannot be verified are solved, and the simulation efficiency of radar returns of the marine simulator is greatly improved.
Description
technical field [0001] The invention relates to the application field of computer data processing and navigation simulation, in particular to a method for automatic extraction, processing and simplification of radar simulation data used for navigation simulator simulation. Background technique [0002] With the rapid development and wide application of computer data processing technology, computer data processing technology and navigation simulation applications are also closely integrated, such as computer data processing in the form of automatic simplification of radar simulation data in navigation simulators. Typical characteristics of computer data processing combined with navigation simulation applications. [0003] "International Regulations for Preventing collisions at sea, 1972, COLREG1972" promulgated by the International Maritime Organization (IMO) put forward the requirements for correct use of radar and radar plotting, "1974 International Regulations for the Safe...
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IPC IPC(8): G06F19/00
Inventor 张新宇尹勇金一丞任鸿翔张显库王金涛张秀凤任俊生孙霄峰刘秀文神和龙丛林熊欣
Owner DALIAN MARITIME UNIVERSITY
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