dead-reckoning navigation

简明释义

船位推算航行

英英释义

例句

1.The pilot relied on dead-reckoning navigation to estimate their position during the storm.

在暴风雨中，飞行员依靠推算导航来估计他们的位置。

2.The dead-reckoning navigation method helped the explorers chart their course across the desert.

该推算导航方法帮助探险者在沙漠中绘制他们的航线。

3.In the absence of GPS, the team resorted to dead-reckoning navigation to find their way.

在没有GPS的情况下，团队转而使用推算导航来找到他们的路。

4.Using dead-reckoning navigation, the ship calculated its distance traveled based on speed and time.

通过使用推算导航，船只根据速度和时间计算其行驶的距离。

5.Sailors often use dead-reckoning navigation when they are far from land.

水手们在远离陆地时常常使用推算导航。

作文

In the realm of navigation, the term dead-reckoning navigation refers to a method used to estimate one's current position based on a previously determined position. This technique involves calculating the distance traveled and the direction of travel over time, allowing navigators to project their current location without relying on external references such as landmarks or celestial bodies. This method has been utilized for centuries, particularly in maritime and aerial navigation, where conditions may not always be favorable for visual navigation.The essence of dead-reckoning navigation lies in its simplicity and practicality. By maintaining a record of speed, time, and course, navigators can create a continuous path of their journey. For instance, if a ship departs from a known location and travels at a specific speed for a certain amount of time, it can calculate its new position based on that information. However, this method is not without its challenges. External factors such as wind, currents, and human error can significantly impact the accuracy of the calculations, leading to potential discrepancies in the estimated position.Historically, dead-reckoning navigation was one of the primary methods used by sailors before the advent of advanced technology. Ancient mariners relied heavily on this technique, combining it with knowledge of tides and weather patterns to navigate the vast oceans. Even today, while modern navigational tools like GPS have largely replaced traditional methods, dead-reckoning navigation remains an essential skill for navigators, especially in situations where electronic devices may fail or become unreliable.Moreover, dead-reckoning navigation is not limited to maritime contexts; it is also employed in aviation. Pilots often use this method when flying in areas where navigational aids are scarce. By calculating their position based on previous data, they can maintain a safe flight path and reach their destination effectively. This is particularly crucial during long flights over oceans or remote regions where visual references are minimal.In contemporary times, the integration of dead-reckoning navigation with modern technologies has enhanced its effectiveness. For example, many GPS systems incorporate dead-reckoning algorithms to provide accurate positioning even when satellite signals are weak or obstructed. This hybrid approach allows for a more reliable navigation system, ensuring that users can confidently traverse unknown territories.In conclusion, dead-reckoning navigation is a fundamental navigational technique that has stood the test of time. Its importance in both historical and modern contexts cannot be overstated. As technology continues to evolve, the principles of dead-reckoning navigation remain relevant, providing a backup method for determining position when other systems fail. Understanding this technique not only enriches our knowledge of navigation but also highlights the ingenuity of human problem-solving in the face of uncertainty. Thus, mastering dead-reckoning navigation is an invaluable skill for anyone involved in navigation, whether on land, sea, or air.

在导航领域，术语推算导航指的是一种基于之前确定的位置来估算当前位置的方法。这种技术涉及根据时间内的行驶距离和行驶方向进行计算，使导航员能够在不依赖地标或天体等外部参考的情况下预测其当前位置。这种方法已经使用了几个世纪，特别是在海洋和航空导航中，因为在这些情况下，条件可能并不总是有利于视觉导航。推算导航的本质在于其简单性和实用性。通过保持速度、时间和航向的记录，导航员可以创建出他们旅程的连续路径。例如，如果一艘船从一个已知的位置出发，并以特定的速度行驶了一段时间，它可以根据这些信息计算出新的位置。然而，这种方法并非没有挑战。风、海流和人为错误等外部因素可能会显著影响计算的准确性，从而导致估算位置的潜在差异。历史上，推算导航是古代水手使用的主要方法之一。在电子设备出现之前，古代水手在广阔的海洋中高度依赖这一技术，结合潮汐和天气模式的知识进行导航。即使在今天，尽管现代导航工具如GPS在很大程度上取代了传统方法，但推算导航仍然是导航员的一项基本技能，尤其是在电子设备可能失效或变得不可靠的情况下。此外，推算导航不仅限于海洋环境；它也被航空业所采用。飞行员在飞行于导航辅助设施稀缺的区域时，常常使用这种方法。通过根据先前的数据计算他们的位置，他们可以保持安全的飞行路径，有效到达目的地。这在长途飞行穿越海洋或偏远地区时尤为重要，因为在这些地方可视参考极少。在当代，推算导航与现代技术的结合增强了其有效性。例如，许多GPS系统集成了推算算法，以便在卫星信号微弱或被阻挡时提供准确的位置。这种混合方法使导航系统更加可靠，确保用户能够自信地穿越未知领域。总之，推算导航是一种经受住时间考验的基本导航技术。它在历史和现代背景下的重要性不容小觑。随着技术的不断发展，推算导航的原则依然相关，为在其他系统失败时确定位置提供了一种备份方法。理解这一技术不仅丰富了我们对导航的认识，还突显了人类在面对不确定性时的聪明才智。因此，掌握推算导航是任何参与导航的人，无论是陆地、海洋还是空中的宝贵技能。