ground wave
简明释义
地波
英英释义
A ground wave is a type of electromagnetic wave that travels along the surface of the Earth, typically used in radio communication. | 地波是一种沿着地球表面传播的电磁波,通常用于无线电通信。 |
例句
1.Engineers studied the effects of ground wave 地波 on various terrains for better signal transmission.
工程师们研究了地波在不同地形上的影响,以改善信号传输。
2.In coastal areas, ground wave 地波 can travel further due to the flat landscape.
在沿海地区,由于地势平坦,地波可以传播得更远。
3.The military relies on ground wave 地波 communications for secure and reliable messaging.
军方依赖地波通信来确保安全和可靠的信息传递。
4.During the storm, the ground wave 地波 propagation was disrupted, leading to poor signal quality.
在暴风雨期间,地波传播受到了干扰,导致信号质量差。
5.The radio signal traveled as a ground wave 地波, allowing for long-distance communication.
无线电信号以地波的形式传播,使得远程通信成为可能。
作文
The concept of a ground wave is essential in understanding how radio waves propagate through the atmosphere. A ground wave refers to the type of electromagnetic wave that travels along the surface of the Earth. This phenomenon occurs due to the interaction between the radio wave and the Earth's surface, which allows the wave to bend and follow the contours of the terrain. As a result, ground waves are particularly effective for long-range communication, especially at lower frequencies.In practical terms, ground waves are crucial for AM radio broadcasting. AM radio stations often operate at lower frequencies, which allows their signals to travel further by utilizing ground waves. These waves can effectively cover large geographical areas, making them ideal for reaching audiences in rural or remote locations where other forms of communication may be limited.One of the key advantages of ground waves is their ability to diffract around obstacles such as buildings and hills. This property enables the signal to maintain clarity and strength even in challenging environments. For instance, when a listener tunes into an AM radio station while driving through a hilly region, they may still be able to receive the broadcast due to the presence of ground waves that navigate around the obstacles.However, it is important to note that ground waves have limitations as well. Their effectiveness diminishes with increasing frequency, which is why higher frequency signals, such as those used in FM radio or television broadcasting, rely more on line-of-sight propagation. This means that while ground waves can provide reliable communication over long distances at lower frequencies, they may not be suitable for all types of broadcasting.In addition to radio communication, ground waves also play a role in other fields such as radar and navigation systems. The principles governing ground wave propagation can help engineers design systems that utilize these waves for various applications. For example, maritime navigation systems often depend on ground waves to ensure accurate positioning and communication between vessels.Furthermore, understanding ground waves is vital for environmental studies and urban planning. As cities grow and develop, the impact of ground waves on communication infrastructure must be considered. Engineers and planners need to take into account how buildings and natural landscapes might affect the propagation of these waves to ensure that communication systems remain effective.In conclusion, the study of ground waves is a fascinating area that intersects physics, engineering, and communication technology. As we continue to advance in our understanding of wave propagation, it is clear that ground waves will remain a fundamental aspect of how we connect and communicate across vast distances. Whether it's through radio broadcasts, navigation systems, or urban planning, the significance of ground waves cannot be overstated. By appreciating their role in our daily lives, we can better harness their potential for future innovations in communication technology.
‘地波’的概念对于理解无线电波如何在大气中传播至关重要。‘地波’是指沿地球表面传播的电磁波。这种现象是由于无线电波与地球表面的相互作用,使得波能够弯曲并跟随地形的轮廓。因此,‘地波’特别适合于远程通信,尤其是在较低频率下。在实际应用中,‘地波’对AM广播至关重要。AM广播电台通常在较低频率下运行,这使得它们的信号能够通过利用‘地波’传播得更远。这些波能够有效覆盖大面积地理区域,使其成为在农村或偏远地区接触听众的理想选择,因为其他通信形式可能有限。‘地波’的一个主要优点是它们能够绕过建筑物和山丘等障碍物进行衍射。这一特性使得信号即使在复杂环境中也能保持清晰和强度。例如,当听众在崎岖地区开车时调频收听AM广播电台,他们仍然能够接收到广播,这是因为存在的‘地波’能够绕过障碍物。然而,需要注意的是,‘地波’也有其局限性。随着频率的增加,它们的有效性会降低,这就是为什么高频信号,如FM广播或电视广播,更依赖于视距传播。这意味着虽然‘地波’可以在较低频率下提供可靠的长距离通信,但它们可能并不适合所有类型的广播。除了无线电通信外,‘地波’在雷达和导航系统等其他领域也发挥着作用。掌握‘地波’传播原理可以帮助工程师设计利用这些波的各种应用系统。例如,海事导航系统通常依赖于‘地波’来确保船只之间的准确定位和通信。此外,了解‘地波’对于环境研究和城市规划至关重要。随着城市的成长和发展,通信基础设施受‘地波’影响的情况必须得到考虑。工程师和规划者需要考虑建筑物和自然景观如何影响这些波的传播,以确保通信系统仍然有效。总之,‘地波’的研究是一个迷人的领域,交织着物理学、工程学和通信技术。随着我们对波传播理解的不断深入,显然‘地波’将继续成为我们如何跨越广阔距离连接和沟通的基本方面。无论是通过广播、导航系统还是城市规划,‘地波’的重要性都不容小觑。通过欣赏它们在我们日常生活中的作用,我们可以更好地利用它们在未来通信技术创新中的潜力。