dead reckoning

简明释义

航迹推算积算船位

英英释义

例句

1.The adventurer relied on dead reckoning to traverse the uncharted territory.

探险者依靠推算导航穿越未知领土。

2.The captain relied on dead reckoning to navigate through the foggy waters.

船长依靠推算导航在雾蒙蒙的水域中航行。

3.Using dead reckoning, the sailor estimated their distance from the shore.

水手利用推算导航估算他们离岸边的距离。

4.In the absence of GPS, we had to use dead reckoning to find our way back.

在没有GPS的情况下，我们不得不使用推算导航找到回去的路。

5.The pilot calculated their position using dead reckoning after losing satellite signal.

飞行员在失去卫星信号后，通过推算导航计算他们的位置。

作文

In the world of navigation, the term dead reckoning refers to a method used to estimate one's current position based on a previously determined location. This technique involves calculating the direction and distance traveled from that known point, allowing navigators to plot their course even in the absence of visual landmarks or GPS signals. Understanding dead reckoning is essential for anyone interested in maritime or aerial navigation, as it provides a foundational skill that has been utilized for centuries.Historically, dead reckoning was a crucial skill for sailors and explorers who ventured into uncharted waters. Before the advent of modern technology, navigators relied heavily on this method to maintain their bearings. By keeping track of their speed, heading, and time traveled, they could make educated guesses about their position. For instance, if a ship left a known harbor and sailed at a steady speed for several hours, the captain could estimate how far they had traveled and in what direction, thus determining their approximate location.However, dead reckoning is not without its challenges. The method assumes that the navigator can accurately measure speed and direction, which can be affected by various factors such as currents, wind, and weather conditions. These variables can lead to significant errors in calculations, making it vital for navigators to constantly adjust their estimates. In fact, many experienced sailors often combine dead reckoning with other navigation techniques, such as celestial navigation or using navigational charts, to enhance accuracy and reliability.In contemporary times, while technology has transformed navigation with tools like GPS, understanding dead reckoning remains valuable. It serves as a backup method when electronic systems fail or when navigating in areas where GPS signals are weak or unavailable. Additionally, learning dead reckoning fosters a deeper appreciation for traditional navigation skills and the history behind them.Moreover, dead reckoning is not limited to maritime or aerial contexts; it can also be applied in various fields, including robotics and autonomous vehicles. Engineers working on self-driving cars, for example, often employ principles of dead reckoning to help the vehicle understand its position relative to its last known location. By integrating data from sensors that measure speed and direction, these vehicles can navigate complex environments while compensating for potential inaccuracies in their positioning systems.In conclusion, dead reckoning is a timeless navigation technique that combines skill, knowledge, and experience. While modern technology has made navigation easier and more precise, the principles behind dead reckoning remain relevant. Whether one is sailing across the ocean, flying a plane, or developing autonomous technology, mastering dead reckoning can provide essential insights and capabilities that enhance navigation and situational awareness. As we continue to explore new frontiers, both on Earth and beyond, the lessons learned from dead reckoning will undoubtedly play a role in our journey.

在导航的世界中，术语dead reckoning指的是一种基于先前确定的位置来估算当前位置信息的方法。这种技术涉及根据已知点计算行进的方向和距离，使导航员能够在没有视觉地标或GPS信号的情况下绘制航线。理解dead reckoning对任何对海上或空中导航感兴趣的人来说都是至关重要的，因为它提供了一项自古以来就被应用的基础技能。从历史上看，dead reckoning对冒险进入未知水域的水手和探险家来说是一项关键技能。在现代技术出现之前，导航员在很大程度上依赖这种方法来保持航向。通过跟踪他们的速度、航向和经过的时间，他们可以合理地猜测自己的位置。例如，如果一艘船从一个已知的港口出发，以稳定的速度航行几个小时，船长就可以估算他们行驶的距离和方向，从而确定他们的大致位置。然而，dead reckoning并非没有挑战。该方法假设导航员能够准确测量速度和方向，而这些都可能受到洋流、风和天气条件等各种因素的影响。这些变量可能导致计算中的重大误差，因此导航员必须不断调整他们的估计。事实上，许多经验丰富的水手通常将dead reckoning与其他导航技术结合使用，例如天文导航或使用航海图，以提高准确性和可靠性。在当代，虽然技术已经通过GPS等工具改变了导航，但理解dead reckoning仍然具有价值。当电子系统故障或在GPS信号弱或不可用的区域导航时，它作为一种备份方法显得尤为重要。此外，学习dead reckoning也能加深对传统导航技能及其背后历史的欣赏。此外，dead reckoning并不仅限于海事或航空环境；它还可以应用于各个领域，包括机器人技术和自动驾驶汽车。例如，工程师在开发自动驾驶汽车时，常常采用dead reckoning的原理来帮助车辆了解相对于其最后已知位置的状态。通过整合来自测量速度和方向的传感器的数据，这些车辆能够在复杂环境中导航，同时弥补定位系统潜在的不准确性。总之，dead reckoning是一种永恒的导航技术，结合了技能、知识和经验。虽然现代技术使导航变得更加简单和精确，但dead reckoning背后的原则仍然相关。无论是在海洋上航行、飞行飞机还是开发自主技术，掌握dead reckoning都能提供增强导航和情境意识的基本洞察力和能力。随着我们继续探索新的前沿，无论是在地球上还是更远的地方，从dead reckoning中学到的经验教训无疑将在我们的旅程中发挥作用。