dead reckoning position

简明释义

推算船位积算船位

英英释义

例句

1.To ensure accuracy, we often cross-check our dead reckoning position with visual landmarks.

为了确保准确性，我们经常将我们的估算位置与视觉地标进行交叉检查。

2.We adjusted our course after realizing our dead reckoning position was off due to strong currents.

我们在意识到由于强流导致我们的估算位置不准确后调整了航向。

3.The navigator calculated the dead reckoning position to determine our current location based on speed and time.

导航员通过速度和时间计算了估算位置以确定我们目前的位置。

4.The flight crew used the dead reckoning position to navigate through the storm when GPS signals were lost.

当GPS信号丢失时，机组人员利用估算位置穿越风暴进行导航。

5.In poor visibility, the captain relied on the dead reckoning position to guide the ship safely.

在能见度差的情况下，船长依靠估算位置安全引导船只。

作文

In the world of navigation, the term dead reckoning position refers to a method used to estimate one's current position based on a previously determined location. This technique is particularly useful when GPS signals are unavailable or unreliable, such as in dense urban areas or underwater environments. The basic principle behind dead reckoning position involves taking into account the speed, direction, and time traveled from the last known position to calculate a new estimated location.To better understand how dead reckoning position works, let us consider a scenario involving a sailor navigating through the open sea. The sailor starts at a known point, let's say a harbor, and sets sail towards an island. The sailor records the time taken to reach a certain distance and maintains a consistent speed. By applying the principles of dead reckoning position, the sailor can estimate their current location by factoring in the direction they are heading and the distance covered since leaving the harbor.However, the accuracy of the dead reckoning position can be affected by various factors. For instance, if the sailor encounters strong currents or winds, these external forces can push the vessel off course, leading to an inaccurate estimation of the current position. Therefore, it is crucial for navigators to regularly update their calculations with new data, such as landmarks or celestial navigation, to improve the reliability of their dead reckoning position.Despite its limitations, dead reckoning position remains an essential skill for sailors, pilots, and even drivers. In aviation, for example, pilots often use dead reckoning position when flying in areas where radar coverage is minimal or during instrument flight rules (IFR) conditions. By continuously calculating their position based on speed and heading, pilots can safely navigate to their destination.Moreover, the principles of dead reckoning position are not only applicable to maritime and aerial navigation but also have practical applications in everyday life. For instance, when driving a car in an unfamiliar area without GPS, a driver might rely on dead reckoning position by remembering the last known intersection and estimating their route based on speed and time traveled. This method can help prevent getting lost and can serve as a backup navigation strategy.In conclusion, the concept of dead reckoning position is a fundamental aspect of navigation that has stood the test of time. While modern technology has provided us with advanced tools for determining our location, the ability to estimate one's position using dead reckoning position is still a valuable skill. It teaches us to be aware of our surroundings, to make informed decisions based on available information, and to adapt to changing conditions. As we continue to explore new frontiers, both on land and at sea, the principles of dead reckoning position will remain relevant, reminding us of the importance of navigation in our daily lives.

在导航的世界中，术语死算位置指的是一种基于先前确定的位置来估计当前位置信息的方法。当GPS信号不可用或不可靠时，这种技术尤其有用，例如在密集的城市区域或水下环境中。死算位置的基本原理是考虑从最后已知位置出发的速度、方向和经过时间，以计算新的估计位置。为了更好地理解死算位置的工作原理，让我们考虑一个涉及水手在公海航行的场景。水手从一个已知点开始，比如一个港口，向一个岛屿启航。水手记录到达某个距离所需的时间，并保持一致的速度。通过应用死算位置的原理，水手可以通过考虑他们的航向和离开港口以来的行驶距离来估计他们的当前位置。然而，死算位置的准确性可能会受到各种因素的影响。例如，如果水手遇到强流或风，这些外部力量可能会将船只推离航线，导致当前位置的估计不准确。因此，对于导航员来说，定期使用新数据更新他们的计算非常重要，例如地标或天文导航，以提高他们的死算位置的可靠性。尽管存在局限性，死算位置仍然是水手、飞行员甚至司机的基本技能。在航空领域，例如，当飞行员在雷达覆盖范围有限或仪表飞行规则（IFR）条件下飞行时，他们通常会使用死算位置。通过根据速度和航向不断计算他们的位置，飞行员可以安全地导航到目的地。此外，死算位置的原理不仅适用于海洋和航空导航，还在日常生活中具有实用应用。例如，当在没有GPS的陌生地区开车时，司机可能会依靠死算位置，通过记住最后一个已知的交叉口并根据速度和行驶时间来估计他们的路线。这种方法可以帮助防止迷路，并可以作为备份导航策略。总之，死算位置的概念是导航中的一个基本方面，经受住了时间的考验。尽管现代技术为我们提供了先进的定位工具，但使用死算位置估计位置的能力仍然是一项宝贵的技能。它教会我们关注周围环境，根据可用信息做出明智的决策，并适应变化的条件。随着我们继续探索陆地和海洋的新边界，死算位置的原则将继续保持相关性，提醒我们导航在日常生活中的重要性。