| 王 双,姜春英,康玉祥,金 平,由晓峰.仪表着陆系统的航道调整仿真系统研究[J].电子测量与仪器学报,2020,34(8):174-180 |
| 仪表着陆系统的航道调整仿真系统研究 |
| Research on channel adjustment simulation system of instrument landing system |
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| DOI： |
| 中文关键词: 仪表着陆系统 DDM 最小二乘法 控制变量法 |
| 英文关键词:instrument landing system DDM least square method control variable method |
| 基金项目:辽宁省自然科学基金(2019-KF-01-11)资助项目 |
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| 摘要点击次数: 206 |
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| 中文摘要: |
| 仪表着陆系统(ILS)为飞机安全着陆提供重要的保障。 针对现如今日益递增的航班数量,如何确保 ILS 高效、安全的运
行已成为民航部门面临的重要问题。 通过对调制深度差(DDM)的理论分析、研究,得出了影响 DDM 的主要因素是调制度因子
m90 ,在此基础上,采用控制变量法和最小二乘法分别建立了航道和调制度因子和载波负值的数学模型。 基于 NM7000 设备搭
建了可动态模拟航道调整过程的仿真系统。 最后将所建立系统与实际情况进行对比分析,验证所建立模型的准确性,数据表
明,仿真相对误差小于 1%,说明所提模型精度较高,可以为空中管制人员的参考依据提供理论支持。 |
| 英文摘要: |
| The instrument landing system provides an important guarantee for the safe landing of aircraft. In view of the increasing
number of flights, how to ensure the efficient and safe operation of ILS has become an important issue for the civil aviation department.
Through theoretical analysis and research on modulation depth difference (DDM), it is concluded that the main factor affecting DDM is
modulation factor m90
. On this basis, the mathematical models of channel and modulation factor and carrier negative value are
established by using control variable method and least square method respectively. Based on NM7000 equipment, a simulation system
was built to dynamically simulate the channel adjustment process. Finally, the accuracy of the model was verified by comparing the
established system with the actual situation. The data showed that the relative error of simulation was less than 1%, indicating that the
proposed model was of high accuracy and could provide theoretical support for the reference of air traffic controllers. |
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