propagation delay

简明释义

传播延时

英英释义

例句

1.In satellite communications, the propagation delay can be several hundred milliseconds due to the distance involved.

在卫星通信中，由于涉及的距离，传播延迟可能达到几百毫秒。

2.The propagation delay in the network can significantly affect the overall performance of data transmission.

网络中的传播延迟会显著影响数据传输的整体性能。

3.To optimize the system, we need to calculate the propagation delay for each segment of the network.

为了优化系统，我们需要计算网络每个部分的传播延迟。

4.Engineers must consider propagation delay when designing high-speed circuits to ensure signal integrity.

工程师在设计高速电路时必须考虑传播延迟以确保信号完整性。

5.The propagation delay of light in fiber optics is much lower than in traditional copper cables.

光纤中的传播延迟远低于传统铜缆中的延迟。

作文

In the world of telecommunications and networking, understanding the concept of propagation delay is crucial for optimizing system performance. Propagation delay refers to the time it takes for a signal to travel from its source to its destination. This delay can significantly affect the overall efficiency of communication systems, especially in scenarios where real-time data transmission is required.To illustrate this, let us consider a simple example of a phone call made between two individuals located in different cities. When one person speaks, their voice is converted into an electrical signal and transmitted through various mediums, such as fiber optics or copper wires, before reaching the other party. The propagation delay in this scenario includes the time taken for the signal to traverse these distances. Factors influencing this delay include the physical distance between the two parties, the type of medium used for transmission, and the speed at which the signal travels.The speed of light in fiber optic cables, for instance, is approximately two-thirds of its speed in a vacuum. Therefore, even though signals travel incredibly fast, the distance can still introduce a noticeable propagation delay. In satellite communications, this delay can be even more pronounced due to the vast distances involved. A signal traveling to a satellite in geostationary orbit and back can experience a round-trip propagation delay of about 500 milliseconds, which can be detrimental to activities requiring instant feedback, such as video conferencing or online gaming.Understanding propagation delay is not only important for end-users but also for network engineers and designers. For instance, when designing a network, engineers must account for propagation delay to ensure that data packets are sent and received efficiently. They may employ various strategies, such as optimizing routing protocols or reducing the number of hops a signal must make, to minimize this delay.Moreover, in high-frequency trading, where milliseconds can mean the difference between profit and loss, firms invest heavily in technology to reduce propagation delay. They may place their servers closer to stock exchanges or use direct fiber connections to ensure that their trades are executed as quickly as possible.In summary, propagation delay is a fundamental concept in the realm of communication technologies. It not only impacts everyday activities like phone calls and internet browsing but also plays a critical role in specialized fields such as finance and engineering. By understanding and addressing propagation delay, we can enhance the efficiency and effectiveness of our communication systems, leading to a better user experience and improved operational outcomes.

传播延迟是电信和网络领域中的一个重要概念，了解这一概念对于优化系统性能至关重要。传播延迟指的是信号从源头到达目的地所需的时间。这种延迟可能会显著影响通信系统的整体效率，尤其是在需要实时数据传输的场景中。为了说明这一点，我们可以考虑一个简单的例子：在不同城市之间进行的电话通话。当一个人说话时，他们的声音会被转换为电信号，并通过光纤或铜线等各种介质传输，最终到达另一方。在这种情况下，传播延迟包括信号穿越这些距离所需的时间。影响这种延迟的因素包括两方之间的物理距离、用于传输的介质类型以及信号传播的速度。例如，光纤电缆中光速大约是其在真空中速度的三分之二。因此，即使信号传播得非常快，距离仍然可能引入明显的传播延迟。在卫星通信中，由于涉及的巨大距离，这种延迟可能更加明显。信号往返于静止轨道卫星的过程可能经历约500毫秒的传播延迟，这对需要即时反馈的活动，如视频会议或在线游戏，可能是有害的。了解传播延迟不仅对最终用户重要，对网络工程师和设计师也同样重要。例如，在设计网络时，工程师必须考虑传播延迟，以确保数据包能够高效发送和接收。他们可能会采用各种策略，例如优化路由协议或减少信号必须经过的跳数，以最小化这种延迟。此外，在高频交易中，毫秒的差距可能意味着盈亏，因此公司会大量投资于技术，以减少传播延迟。他们可能会将服务器放置在离证券交易所更近的位置，或使用直接的光纤连接，以确保他们的交易能够尽快执行。总之，传播延迟是通信技术领域的一个基本概念。它不仅影响日常活动，如电话通话和互联网浏览，还在金融和工程等专业领域中发挥着关键作用。通过理解和解决传播延迟，我们可以提高通信系统的效率和有效性，从而改善用户体验和运营成果。