non-directional radiobeacon

简明释义

不定向无线电示标台

英英释义

例句

1.The aircraft used a non-directional radiobeacon to navigate towards the airport.

飞机使用了一个非定向无线电信标来导航前往机场。

2.The non-directional radiobeacon broadcasts a continuous signal that helps ships in the area.

这个非定向无线电信标发出连续信号，帮助该区域的船只。

3.Pilots often rely on a non-directional radiobeacon for position fixing during low visibility conditions.

在能见度低的情况下，飞行员常常依赖于一个非定向无线电信标来确定位置。

4.The non-directional radiobeacon is an essential tool for air traffic control.

这个非定向无线电信标是空中交通管制的重要工具。

5.During training, students learned how to interpret signals from a non-directional radiobeacon.

在培训期间，学生们学习了如何解读来自非定向无线电信标的信号。

作文

In the realm of aviation and maritime navigation, precise positioning and direction-finding are of utmost importance. One of the key technologies that assist pilots and sailors in determining their location is the non-directional radiobeacon. A non-directional radiobeacon (非定向无线电信标) is a type of radio transmitter that emits a continuous signal, allowing aircraft and vessels to ascertain their position relative to the beacon's location. Unlike directional beacons, which send signals in specific directions, a non-directional radiobeacon broadcasts its signal uniformly in all directions, making it a versatile tool for navigation. The primary function of a non-directional radiobeacon is to provide a reference point for navigation. This is particularly crucial when flying or sailing in areas where landmarks are scarce or visibility is low. By tuning into the frequency of the non-directional radiobeacon, pilots and mariners can determine their distance from the beacon, thereby aiding in their journey. The simplicity of the system allows for easy integration into various navigation instruments, such as VOR (VHF Omnidirectional Range) receivers in aircraft or RDF (Radio Direction Finder) systems in ships.Moreover, non-directional radiobeacons play a vital role in search and rescue operations. When an aircraft or vessel is in distress, they can transmit their position by referencing the nearest non-directional radiobeacon. Rescue teams can then use this information to locate the distressed unit more efficiently. This capability highlights the significance of non-directional radiobeacons beyond mere navigation; they are integral to safety and emergency response in the transportation sectors.The operational principles behind a non-directional radiobeacon are relatively straightforward. The beacon transmits a radio signal on a specific frequency, which can be picked up by receivers within a certain range. As the receiver moves closer to the beacon, the strength of the signal increases, enabling the user to gauge their proximity. Additionally, many non-directional radiobeacons also incorporate Morse code identifiers, which allow users to recognize and differentiate between multiple beacons in the area.Despite the advancements in satellite-based navigation systems, such as GPS, non-directional radiobeacons remain relevant due to their reliability and ease of use. They serve as a backup navigation aid, ensuring that pilots and sailors have an alternative means of determining their position should they encounter issues with more modern systems. This redundancy is crucial in maintaining safety in aviation and maritime operations.In conclusion, the non-directional radiobeacon (非定向无线电信标) is an essential component of navigation technology. Its ability to provide accurate positional information, facilitate search and rescue operations, and serve as a reliable backup system underscores its importance in both aviation and maritime contexts. As technology continues to evolve, the non-directional radiobeacon will likely adapt and coexist with newer systems, ensuring that navigators have access to the tools they need to travel safely and efficiently across the skies and seas.

在航空和海洋导航领域，精确定位和方向寻找至关重要。帮助飞行员和水手确定其位置的关键技术之一是非定向无线电信标。非定向无线电信标是一种无线电发射器，发出连续信号，使飞机和船只能够确定它们相对于信标的位置。与特定方向发送信号的定向信标不同，非定向无线电信标以均匀的方式在所有方向上广播信号，使其成为一种多功能的导航工具。非定向无线电信标的主要功能是提供导航参考点。这在飞行或航行于缺乏地标或能见度低的区域时尤为重要。通过调谐到非定向无线电信标的频率，飞行员和水手可以确定他们与信标的距离，从而帮助他们的旅程。该系统的简单性使其能够轻松集成到各种导航仪器中，如飞机上的VOR（甚高频全向范围）接收器或船只上的RDF（无线电方向探测器）系统。此外，非定向无线电信标在搜救行动中发挥着至关重要的作用。当飞机或船只遇险时，它们可以通过参考最近的非定向无线电信标来传输其位置信息。救援队可以利用这些信息更有效地找到遇险单位。这一能力突显了非定向无线电信标在导航之外的重要性；它们对运输行业的安全和应急响应至关重要。非定向无线电信标的操作原理相对简单。信标在特定频率上发射无线电信号，这些信号可以被一定范围内的接收器接收到。随着接收器靠近信标，信号强度增强，使用户能够评估其接近程度。此外，许多非定向无线电信标还结合了摩尔斯电码标识符，使用户能够识别和区分区域内多个信标。尽管基于卫星的导航系统（如GPS）不断发展，非定向无线电信标仍然因其可靠性和易用性而保持相关性。它们作为备用导航辅助工具，确保飞行员和水手在遇到现代系统问题时有另一种确定其位置的方式。这种冗余在维护航空和海洋操作的安全中至关重要。总之，非定向无线电信标是导航技术的重要组成部分。它提供准确的位置信息、促进搜救行动并作为可靠的备用系统的能力凸显了其在航空和海洋环境中的重要性。随着技术的不断发展，非定向无线电信标可能会适应并与更新的系统共存，确保导航员能够获得安全高效穿越天空和海洋所需的工具。