【摘要】：考慮到機場周圍障礙物對飛行安全的影響,文章提出一種基于World Wind的障礙物評估方法。該方法根據(jù)機場環(huán)境和飛行程序設(shè)計要求建立OAS面數(shù)學(xué)模型,對給定的數(shù)據(jù)進行分析計算;對World Wind進行二次開發(fā),實現(xiàn)障礙物與OAS面關(guān)系的三維可視化,結(jié)合客觀數(shù)據(jù)分析和三維仿真結(jié)果給出評估報告;并分析障礙物對導(dǎo)航信號遮蔽影響,完成對障礙物的進一步評估。通過對天津機場障礙物驗證分析表明,該方法對障礙物評估計算結(jié)果與ICAO使用的專業(yè)軟件結(jié)果一致,并且更便捷直觀,同時通過研究障礙物對某DME臺信號的遮擋影響,結(jié)果證明能夠準(zhǔn)確地計算DME信號近距有效覆蓋范圍。
[Abstract]:In view of the influence of the obstacle around the airport on the flight safety, an obstacle assessment method based on World Wind is proposed. according to the requirements of the airport environment and the flight program design, an OAS surface mathematical model is established, the given data is analyzed and calculated, the three-dimensional visualization of the relationship between the obstacle and the OAS surface is realized through the secondary development of the World Wind, and the evaluation report is given in combination with the objective data analysis and the three-dimensional simulation result; And the influence of the obstacle on the shielding effect of the navigation signal is analyzed, and further evaluation of the obstacle is completed. The analysis of the obstacle of Tianjin airport shows that this method is consistent with the professional software results used by ICAO, and it is more convenient and intuitive, and at the same time, by studying the blocking effect of the obstacle on the signal of a certain DME station, The results show that the DME signal near-range effective coverage can be accurately calculated.
【作者單位】： 中國民航大學(xué)智能信號與圖像處理天津市重點實驗室;
【基金】：國家自然科學(xué)基金委員會與中國民用航空局聯(lián)合項目(61079009) 中央高�；究蒲袠I(yè)務(wù)費支持項目(ZXH2009B008)
【分類號】：V351;V328
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本文編號：2501395