Decca navigation system

简明释义

台卡导航系统

英英释义

The Decca navigation system is a hyperbolic radio navigation system that was widely used in the mid-20th century for maritime and aerial navigation.

德卡导航系统是一种超波导航系统,在20世纪中叶广泛用于海洋和航空导航。

It employs a network of ground-based radio beacons to provide position information by measuring the time difference of arrival of radio signals at a receiver.

它利用一组地面无线电信标,通过测量无线电信号到达接收器的时间差来提供位置信息。

例句

1.With the help of the Decca navigation system, the cargo ship avoided dangerous reefs.

德卡导航系统的帮助下,货船避免了危险的暗礁。

2.The Decca navigation system proved invaluable during the naval exercises conducted last summer.

在去年夏天进行的海军演习中,德卡导航系统证明是无价之宝。

3.The sailor relied on the Decca navigation system to accurately chart his course across the ocean.

水手依靠德卡导航系统准确地绘制他的航线穿越海洋。

4.Using the Decca navigation system, the fishing boat was able to locate the best spots for catching fish.

使用德卡导航系统,渔船能够找到最佳的捕鱼地点。

5.The Decca navigation system was widely used by commercial vessels in the 1960s.

德卡导航系统在1960年代被商业船只广泛使用。

作文

The Decca navigation system is a pioneering technology that revolutionized maritime navigation in the mid-20th century. Developed by the Decca Company in the United Kingdom, this system utilized a network of shore-based radio beacons to provide accurate positioning information to ships at sea. The significance of the Decca navigation system cannot be overstated, as it marked a transition from traditional navigational methods to more advanced techniques that enhanced safety and efficiency in maritime operations.Before the advent of the Decca navigation system, sailors primarily relied on celestial navigation, dead reckoning, and charts to determine their position. These methods, while effective to some extent, were often fraught with inaccuracies due to various environmental factors such as weather conditions and human error. The introduction of the Decca navigation system changed this landscape by providing real-time positioning data, enabling mariners to navigate with greater confidence.The Decca navigation system operated by emitting radio signals from a series of fixed land stations. Ships equipped with compatible receivers could triangulate their position based on the time it took for the signals to reach them. This method allowed for a positioning accuracy of about 100 meters, which was a significant improvement over previous techniques. As a result, the Decca navigation system became widely adopted by commercial shipping companies, fishing fleets, and even military vessels.One of the key advantages of the Decca navigation system was its ability to function effectively in challenging environments. Unlike satellite-based systems that can be hindered by obstructions such as tall buildings or mountains, the Decca navigation system relied on ground-based signals, making it less susceptible to interference. This reliability made it an invaluable tool for navigating busy shipping lanes and coastal waters where precision was paramount.Despite its many benefits, the Decca navigation system was not without limitations. The system required a clear line of sight to the shore stations, which meant that it was less effective in deep ocean waters where ships were far from land. Additionally, advancements in technology eventually led to the development of Global Positioning System (GPS) technology, which offered even greater accuracy and global coverage. As a result, the use of the Decca navigation system began to decline in the late 20th century, with many mariners transitioning to GPS-based navigation.In conclusion, the Decca navigation system played a crucial role in the evolution of navigational technology. It provided a reliable and efficient means of determining a vessel's position, significantly improving safety at sea. While newer technologies have since taken its place, the impact of the Decca navigation system on maritime navigation remains a testament to human ingenuity and the relentless pursuit of safer and more efficient ways to traverse the world's oceans. Today, we recognize the Decca navigation system not only as a historical milestone but also as a stepping stone towards the advanced navigational systems we rely on today.

德卡导航系统是一项开创性的技术,它在20世纪中叶彻底改变了海洋导航。该系统由英国的德卡公司开发,利用一系列岸基无线电信标网络为海上的船只提供准确的定位信息。德卡导航系统的重要性不言而喻,因为它标志着传统导航方法向更先进技术的过渡,从而提高了海洋作业的安全性和效率。在德卡导航系统问世之前,水手主要依靠天文导航、推算和图表来确定他们的位置。这些方法虽然在一定程度上有效,但由于天气条件和人为错误等各种环境因素,往往存在不准确的情况。德卡导航系统的引入改变了这种局面,使海员能够实时获取定位数据,从而更有信心地航行。德卡导航系统通过从一系列固定陆地站发射无线电信号来工作。配备兼容接收器的船只可以根据信号到达所需的时间进行三角测量,从而确定其位置。这种方法使得定位精度达到约100米,这比以前的技术有了显著改善。因此,德卡导航系统被商业航运公司、渔船甚至军舰广泛采用。德卡导航系统的一个主要优点是它能够在具有挑战性的环境中有效运行。与可能受到高楼大厦或山脉等障碍物干扰的卫星导航系统不同,德卡导航系统依赖于地面信号,因此不易受到干扰。这种可靠性使其成为在繁忙的航道和沿海水域航行时不可或缺的工具,而这些地方对精确性要求极高。尽管有许多好处,德卡导航系统也并非没有局限性。该系统需要与岸站之间保持清晰的视线,这意味着在远离陆地的深海水域效果较差。此外,技术的进步最终导致全球定位系统(GPS)技术的发展,后者提供了更高的精度和全球覆盖范围。因此,随着许多水手转向基于GPS的导航,德卡导航系统的使用在20世纪末开始下降。总之,德卡导航系统在导航技术的演变中发挥了至关重要的作用。它提供了一种可靠高效的方式来确定船只的位置,显著提高了海上的安全性。尽管更新的技术已经取代了它,但德卡导航系统对海洋导航的影响仍然证明了人类的智慧和对更安全、更高效地穿越世界海洋的不断追求。今天,我们不仅将德卡导航系统视为历史里程碑,也将其视为我们今天依赖的先进导航系统的垫脚石。

相关单词

navigation

navigation详解:怎么读、什么意思、用法