Loran coverage

简明释义

罗兰覆盖区

英英释义

例句

1.In areas with poor satellite visibility, Loran coverage can be a reliable alternative.

在卫星视野不佳的地区，Loran coverage可以成为可靠的替代方案。

2.The fishing vessel relied on Loran coverage to navigate safely through the fog.

这艘渔船依靠Loran coverage在雾中安全航行。

3.Before GPS became widespread, many boats depended on Loran coverage for accurate positioning.

在GPS广泛普及之前，许多船只依赖于Loran coverage进行准确定位。

4.The maritime industry still values Loran coverage for its robustness in challenging environments.

海洋产业仍然重视Loran coverage在复杂环境中的稳健性。

5.The captain checked the Loran coverage map to ensure they were within range of the signal.

船长查看了Loran coverage地图，以确保他们在信号范围内。

作文

In the world of navigation and positioning, the term Loran coverage plays a crucial role. Loran, which stands for Long Range Navigation, is a radio navigation system that has been used since the early 1940s. It utilizes a network of land-based radio transmitters to determine the position of a receiver by measuring the time it takes for radio signals to travel from the transmitters to the receiver. The Loran coverage refers to the geographical area where this navigation system can effectively provide accurate positioning information. The significance of Loran coverage cannot be overstated, especially in maritime and aviation contexts. For ships at sea, having reliable navigation aids is essential for safe passage through often treacherous waters. Similarly, aircraft rely on these systems to navigate during flights, particularly in areas where other forms of navigation might be less reliable or unavailable. The Loran coverage ensures that users can receive signals within a certain range, allowing them to pinpoint their location with precision.Historically, Loran coverage was primarily limited to coastal regions, as the radio signals emitted by the transmitters have a limited range. However, advancements in technology have expanded its reach. With the development of enhanced Loran (eLoran), the coverage area has grown, providing better service and more reliable positioning data. This expansion means that even remote areas, which previously lacked adequate navigation support, can now benefit from Loran coverage.The reliability of Loran coverage is further enhanced by its ability to function in adverse weather conditions. Unlike satellite-based systems, which can be affected by atmospheric disturbances, Loran signals can penetrate clouds and fog, making it a dependable alternative for mariners and aviators alike. This resilience is vital, as navigation errors can lead to catastrophic consequences, including collisions, grounding, or loss of life.Despite the rise of Global Positioning System (GPS) technology, which offers global coverage and high accuracy, Loran coverage remains relevant. Many users appreciate the redundancy it provides; in cases where GPS signals are jammed or spoofed, Loran can serve as a backup navigation method. Additionally, the infrastructure for Loran coverage is often less expensive to maintain than that of satellite systems, making it an appealing option for some regions.In conclusion, understanding Loran coverage is essential for anyone involved in navigation, whether on land, at sea, or in the air. As technology continues to evolve, the importance of reliable navigation systems like Loran will endure. The combination of traditional methods with modern advancements ensures that navigators can safely traverse our planet's vast expanses, relying on the steadfast support provided by Loran coverage. As we look to the future, it is clear that both Loran and GPS will play integral roles in the ever-changing landscape of navigation technology.

在导航和定位的世界中，术语Loran coverage起着至关重要的作用。Loran代表长距离导航，是一种自20世纪40年代早期以来就被使用的无线电导航系统。它利用一组基于陆地的无线电发射器，通过测量无线电信号从发射器到接收器所需的时间来确定接收器的位置。Loran coverage指的是该导航系统能够有效提供准确定位信息的地理区域。Loran coverage的重要性不容小觑，特别是在海事和航空领域。对于在海上的船只来说，拥有可靠的导航辅助设备对于安全通过常常危险的水域至关重要。同样，飞机在飞行过程中依赖这些系统进行导航，特别是在其他导航形式可能不太可靠或不可用的地区。Loran coverage确保用户可以在一定范围内接收信号，从而精确定位他们的位置。历史上，Loran coverage主要限于沿海地区，因为发射器发出的无线电信号的范围有限。然而，技术的进步扩大了其覆盖范围。随着增强型Loran（eLoran）的发展，覆盖区域得到了扩展，提供了更好的服务和更可靠的定位数据。这一扩展意味着即使是以前缺乏足够导航支持的偏远地区，现在也可以受益于Loran coverage。Loran coverage的可靠性还因其在恶劣天气条件下的功能而得以增强。与可能受到大气干扰影响的基于卫星的系统不同，Loran信号可以穿透云层和雾霭，使其成为海员和飞行员的可靠替代方案。这种韧性至关重要，因为导航错误可能导致灾难性后果，包括碰撞、搁浅或失去生命。尽管全球定位系统（GPS）技术的兴起提供了全球覆盖和高精度，但Loran coverage仍然具有相关性。许多用户欣赏它提供的冗余；在GPS信号被干扰或欺骗的情况下，Loran可以作为备份导航方法。此外，维护Loran coverage的基础设施通常比卫星系统便宜，这使其对某些地区具有吸引力。总之，了解Loran coverage对任何参与导航的人来说都是至关重要的，无论是在陆地、海洋还是空中。随着技术的不断发展，像Loran这样的可靠导航系统的重要性将持续存在。传统方法与现代进步的结合确保了导航员可以安全地穿越我们星球的广阔空间，依靠Loran coverage提供的坚定支持。展望未来，显然Loran和GPS将在不断变化的导航技术格局中发挥不可或缺的作用。