guard band

简明释义

防护频带

英英释义

例句

1.The engineers decided to implement a guard band of 1 MHz to ensure signal clarity.

工程师们决定实施一个1 MHz的保护带以确保信号清晰。

2.Without a proper guard band, the audio signals could overlap and cause distortion.

没有适当的保护带，音频信号可能会重叠并导致失真。

3.The regulatory body mandated a guard band for all new wireless communication devices.

监管机构要求所有新无线通信设备设置保护带。

4.In telecommunications, a guard band is used to prevent interference between adjacent frequency bands.

在电信中，保护带用于防止相邻频率带之间的干扰。

5.The guard band helps to minimize the risk of cross-talk in communication systems.

该保护带有助于减少通信系统中的串音风险。

作文

In the world of telecommunications and signal processing, the concept of a guard band is essential for ensuring clear and reliable communication. A guard band refers to a frequency range that is intentionally left unused between two channels or bands of frequencies to prevent interference. This practice is crucial in both analog and digital communications, where overlapping signals can lead to distortion and loss of data. The purpose of a guard band is to provide a buffer zone that minimizes the risk of crosstalk, allowing each channel to operate effectively without disrupting the others.The importance of guard bands can be observed in various applications, including radio broadcasting, television transmission, and mobile phone networks. For instance, when multiple radio stations operate on adjacent frequencies, a guard band is established to ensure that the signals do not interfere with one another. Without this buffer, listeners might experience static or overlapping audio, which can diminish the quality of their listening experience.Moreover, in the realm of wireless communication, guard bands play a vital role in managing the limited spectrum available for use. As the demand for wireless services continues to grow, regulatory bodies allocate frequency bands for different purposes, such as cellular networks, Wi-Fi, and satellite communications. By incorporating guard bands into these allocations, authorities help maintain the integrity of each service, ensuring that users can enjoy uninterrupted connectivity.The design and implementation of guard bands are not without challenges. Engineers must carefully calculate the width of the guard band to balance the need for separation with the efficient use of available spectrum. If the guard band is too wide, it may waste valuable frequency resources; if it is too narrow, it may not provide sufficient protection against interference. Therefore, extensive testing and analysis are often conducted to determine the optimal size of the guard band for specific applications.In addition to technical considerations, the concept of guard bands also extends to other fields, such as economics and project management. In these contexts, a guard band might refer to a safety margin or buffer that is established to account for uncertainties or fluctuations in variables. For example, in budgeting, organizations may set aside a guard band of funds to cover unexpected expenses, ensuring that they remain financially stable even in the face of unforeseen challenges.In conclusion, the term guard band encompasses a critical concept in various domains, particularly in telecommunications. By understanding the significance of guard bands, we can appreciate their role in facilitating effective communication and managing resources. Whether in the context of radio frequencies or financial planning, guard bands serve as essential tools that promote stability and clarity in an increasingly complex world.

在电信和信号处理的世界中，guard band（保护带）的概念对于确保清晰和可靠的通信至关重要。guard band指的是在两个频道或频率带之间故意留出的未使用频率范围，以防止干扰。这种做法在模拟和数字通信中都是至关重要的，因为重叠的信号可能导致失真和数据丢失。guard band的目的是提供一个缓冲区，以最小化串扰的风险，使每个频道能够有效运作，而不会干扰其他频道。guard band的重要性可以在各种应用中观察到，包括无线电广播、电视传输和移动电话网络。例如，当多个广播电台在相邻频率上运行时，会建立guard band以确保信号不会相互干扰。如果没有这个缓冲区，听众可能会经历静电或重叠的音频，这会降低他们的听觉体验质量。此外，在无线通信领域，guard band在管理可用的有限频谱方面发挥着至关重要的作用。随着对无线服务需求的持续增长，监管机构为不同用途分配频率带，例如蜂窝网络、Wi-Fi和卫星通信。通过将guard band纳入这些分配中，相关部门帮助维护每项服务的完整性，确保用户能够享受不间断的连接。guard band的设计和实施并非没有挑战。工程师必须仔细计算guard band的宽度，以平衡分离的需要与有效利用可用频谱之间的关系。如果guard band太宽，可能会浪费宝贵的频率资源；如果太窄，可能无法提供足够的保护以防止干扰。因此，通常会进行广泛的测试和分析，以确定特定应用中guard band的最佳大小。除了技术考虑外，guard band的概念还扩展到其他领域，例如经济学和项目管理。在这些背景下，guard band可能指的是为了应对不确定性或变量波动而建立的安全边际或缓冲区。例如，在预算中，组织可能会预留一部分guard band资金以覆盖意外支出，从而确保在面临不可预见的挑战时保持财务稳定。总之，guard band这一术语在各个领域都包含了一个关键概念，尤其是在电信领域。通过理解guard bands的重要性，我们可以欣赏它们在促进有效沟通和管理资源方面的作用。无论是在无线电频率还是财务规划的背景下，guard bands都作为促进稳定和清晰的重要工具，在日益复杂的世界中发挥着作用。