Decca grid

简明释义

台卡无线电导航系统坐标网格

英英释义

A Decca grid is a navigation and positioning system that uses a network of fixed radio beacons to determine the location of a receiver on the Earth's surface.

Decca网格是一种导航和定位系统,利用固定无线电信标的网络来确定接收器在地球表面的位置。

例句

1.The Decca grid system was essential for maritime navigation in the past.

在过去,Decca网格系统对海洋导航至关重要。

2.The sailor used the Decca grid to navigate through the foggy waters.

水手使用Decca网格在雾蒙蒙的水域中导航。

3.Using the Decca grid, the pilot ensured a safe landing approach.

通过使用Decca网格,飞行员确保了安全的着陆路径。

4.With the help of the Decca grid, we were able to pinpoint our location accurately.

Decca网格的帮助下,我们能够准确地确定我们的位置。

5.The fishing crew relied on the Decca grid for their daily routes.

渔船船员依赖Decca网格来规划他们的日常航线。

作文

The advent of technology has transformed the way we navigate and understand our world. One of the most significant advancements in navigation is the development of systems like the Decca grid, which has played a crucial role in maritime navigation since the mid-20th century. The Decca grid is a hyperbolic radio navigation system that was widely used before the emergence of GPS. It operates by utilizing a network of fixed radio beacons, which transmit signals that allow ships and aircraft to determine their position with remarkable accuracy.To comprehend the significance of the Decca grid, it is essential to understand how it functions. The system employs a series of transmitters that send out signals at precise intervals. These signals are received by vessels equipped with a Decca receiver. By measuring the time it takes for the signals to reach the receiver from different transmitters, the system can calculate the vessel's position using triangulation methods. This process allows for accurate navigation across vast bodies of water, significantly improving safety and efficiency for maritime operations.Before the widespread adoption of the Decca grid, navigators relied heavily on celestial navigation and dead reckoning, both of which require extensive training and experience. The introduction of this radio navigation system revolutionized the industry, providing a more reliable and user-friendly alternative. Mariners could now navigate with greater confidence, reducing the risk of accidents and improving overall maritime safety.Despite its advantages, the Decca grid was not without limitations. The system's effectiveness was influenced by various factors, including signal interference, terrain, and atmospheric conditions. Additionally, as technology advanced, the reliance on the Decca grid began to decline with the rise of Global Positioning System (GPS) technology. GPS offers greater accuracy, global coverage, and ease of use, leading to the eventual phasing out of the Decca grid in many regions.However, the legacy of the Decca grid remains significant in the history of navigation. It paved the way for future innovations in navigation technology and set a standard for accuracy and reliability that subsequent systems would strive to achieve. Today, while modern navigational tools dominate the industry, the principles established by the Decca grid continue to influence the design and functionality of contemporary navigation systems.In conclusion, the Decca grid represents a pivotal moment in the evolution of navigation technology. Its introduction marked a shift towards more systematic and precise methods of determining location, greatly benefiting maritime navigation. Although it has largely been replaced by more advanced systems, the Decca grid serves as a reminder of the importance of innovation in improving safety and efficiency in navigation. As we move forward into an increasingly technological future, understanding the history and impact of systems like the Decca grid is essential for appreciating the advancements we enjoy today.

科技的出现改变了我们导航和理解世界的方式。导航领域最重要的进展之一是像Decca grid这样的系统的发展,自20世纪中叶以来,它在海洋导航中发挥了至关重要的作用。Decca grid是一种超波导航系统,在全球定位系统(GPS)出现之前广泛使用。它通过利用固定无线电信标的网络来工作,这些信标发射信号,使船只和飞机能够以惊人的准确性确定其位置。要理解Decca grid的重要性,首先需要了解它的工作原理。该系统使用一系列发射器,以精确的时间间隔发送信号。这些信号被配备了Decca接收器的船只接收。通过测量从不同发射器到达接收器的信号所需的时间,系统可以利用三角测量方法计算船只的位置。这个过程使得在广阔水域上进行准确导航成为可能,显著提高了海洋作业的安全性和效率。在Decca grid广泛采用之前,导航员主要依赖天文导航和推算航行,这两者都需要广泛的培训和经验。这种无线电导航系统的引入彻底改变了行业,为用户提供了更可靠、更易于使用的替代方案。海员们现在可以更加自信地导航,降低事故风险,提高整体海洋安全。尽管有其优势,Decca grid也并非没有局限性。该系统的有效性受到多种因素的影响,包括信号干扰、地形和气候条件。此外,随着技术的进步,随着全球定位系统(GPS)技术的崛起,人们对Decca grid的依赖开始下降。GPS提供了更高的准确性、全球覆盖范围和易用性,导致Decca grid在许多地区最终被淘汰。然而,Decca grid的遗产在导航历史中仍然具有重要意义。它为未来导航技术的创新铺平了道路,并为后续系统所追求的准确性和可靠性设定了标准。今天,尽管现代导航工具主导了行业,但Decca grid所建立的原则仍然影响着当代导航系统的设计和功能。总之,Decca grid代表了导航技术演变中的一个关键时刻。它的引入标志着向更系统和精确的定位方法的转变,大大有利于海洋导航。尽管它在很大程度上被更先进的系统取代,但Decca grid提醒我们创新在提高导航安全性和效率方面的重要性。随着我们走向一个日益技术化的未来,理解像Decca grid这样的系统的历史和影响,对于欣赏我们今天享有的进步至关重要。

相关单词

grid

grid详解:怎么读、什么意思、用法