Doppler VHF omnirange

简明释义

多普勒甚高频全向信标

英英释义

例句

1.The Doppler VHF omnirange is essential for maintaining situational awareness in busy airspace.

Doppler VHF omnirange对于在繁忙空域中保持态势感知至关重要。

2.The Doppler VHF omnirange provides continuous updates to the flight crew about their location.

Doppler VHF omnirange为飞行员提供关于他们位置的持续更新。

3.The pilot relied on the Doppler VHF omnirange for accurate navigation during the stormy weather.

在暴风雨天气中，飞行员依靠Doppler VHF omnirange进行准确导航。

4.During the training session, the students learned how to interpret signals from the Doppler VHF omnirange.

在训练课程中，学生们学习了如何解读来自Doppler VHF omnirange的信号。

5.Using the Doppler VHF omnirange system, the aircraft was able to determine its position relative to the ground station.

使用Doppler VHF omnirange系统，飞机能够确定与地面站的相对位置。

作文

The aviation industry relies heavily on various navigational aids to ensure the safety and efficiency of air travel. One such essential tool is the Doppler VHF omnirange, which plays a crucial role in providing accurate positional information to aircraft. This system combines the principles of Doppler effect and VHF (Very High Frequency) radio waves to help pilots determine their location relative to navigational beacons on the ground. Understanding how the Doppler VHF omnirange operates is vital for both pilots and air traffic controllers, as it enhances situational awareness and improves flight safety.The Doppler VHF omnirange system works by emitting radio signals at specific frequencies that can be received by aircraft equipped with the appropriate receivers. When an aircraft flies towards or away from a ground station, the frequency of the received signal changes due to the Doppler effect. This shift in frequency allows the onboard equipment to calculate the aircraft's speed and direction relative to the station. By triangulating the signals from multiple stations, pilots can accurately determine their position in three-dimensional space.One of the main advantages of the Doppler VHF omnirange is its ability to provide continuous updates on an aircraft's position, unlike some older navigation systems that rely on periodic updates. This real-time information is crucial, especially during critical phases of flight such as takeoff and landing. Additionally, the system is less susceptible to interference from weather conditions, making it a reliable choice for pilots flying in various environments.Moreover, the Doppler VHF omnirange is a vital component of the broader category of navigational aids known as Area Navigation (RNAV). RNAV allows aircraft to fly on any desired flight path within the coverage area of ground-based or satellite-based navigation aids. This flexibility not only optimizes flight routes but also reduces congestion in busy airspace, leading to increased efficiency and lower operational costs for airlines.Despite its many benefits, the Doppler VHF omnirange system is not without its limitations. For instance, while it provides accurate position data, it may not have the same level of precision as satellite-based systems like GPS. Therefore, pilots are trained to use multiple navigation aids in conjunction to ensure safe and efficient flight operations.In conclusion, the Doppler VHF omnirange is an indispensable tool in modern aviation, helping pilots navigate safely and efficiently. Its reliance on the Doppler effect and VHF signals allows for real-time positional updates, enhancing situational awareness during flight. As the aviation industry continues to evolve, understanding and mastering systems like the Doppler VHF omnirange will remain essential for ensuring the safety and efficiency of air travel. As technology advances, we can expect further improvements in navigational aids, making flying safer and more efficient for everyone involved.

航空业在确保空中旅行的安全和效率方面严重依赖各种导航辅助工具。其中一个至关重要的工具是Doppler VHF omnirange，它在为飞机提供准确的位置信息方面发挥着关键作用。该系统结合了多普勒效应和VHF（超高频）无线电波的原理，帮助飞行员确定他们相对于地面导航信标的位置。理解Doppler VHF omnirange的运作方式对于飞行员和空中交通管制员来说至关重要，因为它增强了态势感知并提高了飞行安全。Doppler VHF omnirange系统通过以特定频率发射无线电信号来工作，这些信号可以被配备适当接收器的飞机接收。当飞机朝向或远离地面站飞行时，由于多普勒效应，接收到的信号频率发生变化。这种频率的变化使机载设备能够计算出飞机相对于站点的速度和方向。通过对来自多个站点的信号进行三角测量，飞行员可以准确确定其在三维空间中的位置。Doppler VHF omnirange的主要优点之一是它能够提供飞机位置的连续更新，这与一些依赖周期性更新的旧导航系统不同。这种实时信息至关重要，尤其是在起飞和着陆等飞行的关键阶段。此外，该系统对天气条件的干扰不太敏感，使其成为在各种环境中飞行的飞行员的可靠选择。此外，Doppler VHF omnirange是称为区域导航（RNAV）的更广泛类别导航辅助工具的重要组成部分。RNAV允许飞机在地面或基于卫星的导航辅助工具的覆盖区域内沿任何所需的飞行路径飞行。这种灵活性不仅优化了飞行路线，还减少了繁忙空域的拥堵，从而提高了效率并降低了航空公司的运营成本。尽管有许多好处，但Doppler VHF omnirange系统并非没有局限性。例如，虽然它提供准确的位置数据，但其精度可能不如基于卫星的系统，如GPS。因此，飞行员接受培训，使用多种导航辅助工具结合使用，以确保安全和高效的飞行操作。总之，Doppler VHF omnirange是现代航空中不可或缺的工具，帮助飞行员安全高效地导航。它对多普勒效应和VHF信号的依赖允许实时位置更新，在飞行过程中增强了态势感知。随着航空业的不断发展，理解和掌握像Doppler VHF omnirange这样的系统将继续对确保空中旅行的安全和效率至关重要。随着技术的进步，我们可以期待导航辅助工具的进一步改进，使飞行对所有参与者来说更加安全和高效。