guard band

简明释义

保护频带;防护频带

英英释义

例句

1.The engineers decided to implement a guard band to ensure signal integrity in the wireless network.

工程师决定实施一个保护带以确保无线网络中的信号完整性。

2.During the radio frequency planning, a guard band was allocated to minimize interference risks.

在无线电频率规划过程中，分配了一个保护带以最小化干扰风险。

3.In telecommunications, a guard band is used to prevent interference between adjacent frequency channels.

在电信中，保护带用于防止相邻频率通道之间的干扰。

4.To avoid cross-talk, the audio system was designed with a guard band between different channels.

为了避免串音，音频系统设计了不同通道之间的保护带。

5.The guard band in the spectrum allocation helps to maintain quality in broadcasting services.

频谱分配中的保护带有助于维护广播服务的质量。

作文

In the realm of telecommunications and signal processing, the concept of a guard band plays a crucial role in ensuring effective communication. A guard band is essentially a frequency range that separates two or more channels to prevent interference between them. This is particularly important in systems where multiple signals are transmitted simultaneously over the same medium. Without a guard band, signals could overlap, leading to degradation in quality and potential loss of data. To illustrate the importance of a guard band, consider a scenario in radio broadcasting. Different radio stations operate on various frequencies to transmit their signals. If two stations are too close in frequency without an adequate guard band, their signals may interfere with each other, causing listeners to hear a mix of both broadcasts, which can be frustrating and confusing. The guard band acts as a buffer zone, ensuring that each station can operate without disruption. Furthermore, the significance of guard bands extends beyond radio frequencies. In digital communications, such as cellular networks and Wi-Fi, guard bands are utilized to manage the spectrum efficiently. For example, in a cellular network, different operators may share the same frequency spectrum. By implementing guard bands, operators can minimize the risk of cross-talk and maintain the integrity of their calls and data transmissions. In addition to preventing interference, guard bands also allow for future expansion. As technology evolves, the demand for bandwidth increases. By incorporating guard bands into the design of communication systems, engineers can create a flexible framework that accommodates future growth without requiring a complete redesign of the system. This foresight is vital in today’s fast-paced technological landscape, where the need for efficient and reliable communication is paramount. However, it is essential to balance the size of the guard band with the overall efficiency of the system. While larger guard bands can reduce interference, they also consume valuable bandwidth that could be used for actual data transmission. Therefore, engineers must carefully analyze and determine the optimal width of a guard band to ensure that systems remain efficient while minimizing interference. In conclusion, the concept of a guard band is fundamental in various fields, particularly in telecommunications and signal processing. By providing a necessary buffer between different channels, guard bands help to prevent interference, maintain signal integrity, and allow for future expansion. As technology continues to advance and the demand for bandwidth grows, the role of guard bands will remain critical in designing effective communication systems. Understanding the function and importance of guard bands is essential for anyone involved in the field of telecommunications, as it directly impacts the quality and reliability of the services provided.

在电信和信号处理领域，guard band的概念在确保有效通信方面发挥着至关重要的作用。guard band本质上是一个频率范围，用于分隔两个或多个频道，以防止它们之间的干扰。这在多个信号同时通过相同媒介传输的系统中尤为重要。如果没有guard band，信号可能会重叠，导致质量下降和数据丢失的可能性。为了说明guard band的重要性，考虑一个广播电台的场景。不同的电台在各种频率上运行以传输其信号。如果两个电台在频率上过于接近而没有足够的guard band，它们的信号可能会相互干扰，导致听众听到两者广播的混合，这可能令人沮丧和困惑。guard band充当缓冲区，确保每个电台可以不受干扰地运行。此外，guard band的重要性不仅限于无线电频率。在数字通信中，例如蜂窝网络和Wi-Fi，guard band被用来有效管理频谱。例如，在蜂窝网络中，不同的运营商可能共享相同的频谱。通过实施guard band，运营商可以最小化串扰的风险，并保持通话和数据传输的完整性。除了防止干扰外，guard band还允许未来扩展。随着技术的发展，对带宽的需求增加。通过在通信系统的设计中加入guard band，工程师可以创建灵活的框架，以适应未来的增长，而无需对系统进行全面重新设计。这种前瞻性在今天快速发展的技术环境中至关重要，因为高效可靠的通信需求至关重要。然而，平衡guard band的大小与系统的整体效率也很重要。虽然较大的guard band可以减少干扰，但它们也会消耗宝贵的带宽，这些带宽本可以用于实际的数据传输。因此，工程师必须仔细分析并确定guard band的最佳宽度，以确保系统在最小化干扰的同时保持高效。总之，guard band的概念在各个领域，特别是在电信和信号处理方面是基础性的。通过在不同频道之间提供必要的缓冲，guard band帮助防止干扰、维护信号完整性并允许未来扩展。随着技术的不断进步和对带宽需求的增长，guard band的作用将在设计有效的通信系统中保持关键。理解guard band的功能和重要性对于任何参与电信领域的人来说都是必不可少的，因为它直接影响所提供服务的质量和可靠性。