line-of-sight propagation

简明释义

直线传播

英英释义

例句

1.The engineer explained that line-of-sight propagation 视距传播 is crucial for effective drone operation.

工程师解释说，视距传播 视距传播对于有效的无人机操作至关重要。

2.In urban areas, buildings can obstruct the line-of-sight propagation 视距传播 of radio waves, affecting signal strength.

在城市地区，建筑物可能会阻碍无线电波的视距传播 视距传播，影响信号强度。

3.To ensure reliable communication, we need to establish a clear line-of-sight propagation 视距传播 path.

为了确保可靠的通信，我们需要建立一条清晰的视距传播 视距传播路径。

4.Wireless networks often experience issues due to line-of-sight propagation 视距传播 limitations.

无线网络常常由于视距传播 视距传播的限制而出现问题。

5.Satellite communications rely heavily on line-of-sight propagation 视距传播 to maintain a clear connection.

卫星通信在很大程度上依赖于视距传播 视距传播以保持清晰的连接。

作文

In the world of telecommunications and radio communications, the term line-of-sight propagation refers to a method of transmitting signals directly from one point to another without any physical obstructions in between. This concept is crucial for understanding how various communication technologies function, especially in urban environments where buildings and other structures can interfere with signal transmission. The essence of line-of-sight propagation lies in the fact that electromagnetic waves travel in straight lines, which means that if there are any obstacles, such as trees, hills, or buildings, the signal may be blocked or reflected, leading to poor connectivity or even complete loss of signal.One of the most common applications of line-of-sight propagation is in microwave communication systems. These systems utilize high-frequency radio waves to transmit data over long distances. For effective communication, it is essential that the transmitter and receiver have an unobstructed view of each other. This is why microwave towers are often placed on elevated terrains or tall structures, ensuring that the path between them is clear. Similarly, satellite communication relies heavily on line-of-sight propagation because satellites orbiting the Earth must maintain a direct line with ground stations to facilitate seamless data transfer.Another important aspect of line-of-sight propagation is its role in wireless networking technologies, such as Wi-Fi. In a typical home or office environment, the presence of walls, furniture, and electronic devices can disrupt the signals transmitted by wireless routers. Understanding the principles of line-of-sight propagation helps in optimizing the placement of routers to achieve better coverage and performance. For instance, placing a router in an open area with minimal obstructions will enhance the signal strength and reduce dead zones where connectivity is weak.Moreover, the concept of line-of-sight propagation is not limited to just telecommunications; it also plays a significant role in fields like radar technology and autonomous vehicles. Radar systems rely on line-of-sight propagation to detect objects and measure their distance accurately. By emitting radio waves and analyzing the reflections from objects, radar can provide critical information for navigation and surveillance. Similarly, autonomous vehicles use sensors that depend on line-of-sight propagation to perceive their surroundings, ensuring safe and efficient driving.However, while line-of-sight propagation offers numerous advantages, it also has its limitations. In densely populated areas, the risk of signal obstruction increases, making it challenging to maintain reliable communication links. To mitigate these issues, engineers often employ techniques such as relay stations or repeaters that help extend the range of signals even when direct lines of sight are not possible. Additionally, advancements in technologies like MIMO (Multiple Input Multiple Output) have allowed for more robust communication systems that can handle multipath propagation, where signals bounce off surfaces before reaching their destination.In conclusion, understanding line-of-sight propagation is vital for anyone involved in the fields of communication, technology, and engineering. It explains how signals travel and the factors that can affect their transmission. By recognizing the importance of maintaining a clear path between transmitting and receiving points, we can enhance the efficiency of various systems, from simple Wi-Fi networks to complex radar and satellite communications. As technology continues to evolve, the principles of line-of-sight propagation will remain fundamental in shaping the future of connectivity and communication.

在电信和无线通信的世界中，术语视距传播指的是一种将信号直接从一个点传输到另一个点的方法，中间没有任何物理障碍。这个概念对于理解各种通信技术如何运作至关重要，尤其是在城市环境中，建筑物和其他结构可能会干扰信号传输。视距传播的本质在于电磁波沿直线传播，这意味着如果有任何障碍，例如树木、山丘或建筑物，信号可能会被阻挡或反射，导致连接不良甚至完全失去信号。视距传播最常见的应用之一是在微波通信系统中。这些系统利用高频无线电波在长距离上传输数据。为了实现有效的通信，发射器和接收器之间必须保持无障碍的视线。这就是为什么微波塔通常建在高地或高大结构上的原因，以确保它们之间的路径清晰。同样，卫星通信在很大程度上依赖于视距传播，因为绕地球轨道运行的卫星必须与地面站保持直接联系，以便顺畅的数据传输。视距传播的另一个重要方面是它在无线网络技术（如Wi-Fi）中的作用。在典型的家庭或办公室环境中，墙壁、家具和电子设备的存在可能会干扰无线路由器传输的信号。理解视距传播的原理有助于优化路由器的放置，以实现更好的覆盖和性能。例如，将路由器放置在开阔区域，障碍物最少的地方，将增强信号强度并减少信号弱的死区。此外，视距传播的概念不仅限于电信；它在雷达技术和自动驾驶汽车等领域也发挥着重要作用。雷达系统依赖于视距传播来准确探测物体并测量其距离。通过发射无线电波并分析从物体反射回来的信号，雷达可以提供导航和监视的重要信息。同样，自动驾驶汽车使用依赖于视距传播的传感器来感知周围环境，确保安全和高效的驾驶。然而，尽管视距传播提供了许多优势，但它也有其局限性。在人口密集的地区，信号被阻挡的风险增加，使得维持可靠的通信链路变得具有挑战性。为了减轻这些问题，工程师们常常采用中继站或信号放大器等技术，帮助延伸信号的范围，即使在没有直接视距的情况下。此外，像MIMO（多输入多输出）这样的技术进步使得能够处理多径传播的更强大的通信系统成为可能，在这种情况下，信号在到达目的地之前会反弹。总之，理解视距传播对于任何参与通信、技术和工程领域的人来说都是至关重要的。它解释了信号如何传播以及可能影响其传输的因素。通过认识到保持发射点和接收点之间清晰路径的重要性，我们可以提高各种系统的效率，从简单的Wi-Fi网络到复杂的雷达和卫星通信。随着技术的不断发展，视距传播的原理将继续在塑造未来的连接和通信中发挥基础性作用。