band limits

简明释义

频段范围

英英释义

例句

1.In signal processing, it is crucial to ensure that the frequency of the signal remains within the band limits 带宽限制 to avoid distortion.

在信号处理中，确保信号的频率保持在带宽限制 band limits内是至关重要的，以避免失真。

2.When designing filters, it's important to define the band limits 带宽限制 accurately to achieve the desired frequency response.

在设计滤波器时，准确定义带宽限制 band limits对于实现所需的频率响应非常重要。

3.The telecommunications company has strict regulations regarding the band limits 带宽限制 for different types of transmissions.

电信公司对不同类型传输的带宽限制 band limits有严格的规定。

4.To improve network performance, we need to monitor traffic and ensure it stays within the band limits 带宽限制 set by the provider.

为了提高网络性能，我们需要监控流量并确保其保持在提供商设定的带宽限制 band limits内。

5.The audio engineer adjusted the equalizer to make sure all sounds were within the band limits 带宽限制 for optimal clarity.

音频工程师调整了均衡器，以确保所有声音都在带宽限制 band limits内，以获得最佳清晰度。

作文

In the realm of signal processing and telecommunications, the concept of band limits plays a crucial role in determining the quality and efficiency of data transmission. The term band limits refers to the frequency range within which a signal can be transmitted without significant distortion or loss of information. Understanding these limits is essential for engineers and technicians who design systems to transmit audio, video, and other forms of data over various media such as cables, radio waves, or fiber optics.When we talk about band limits, we are essentially discussing two key components: the lower limit and the upper limit of the frequency spectrum. The lower limit indicates the minimum frequency that can be effectively transmitted, while the upper limit signifies the maximum frequency. Together, these boundaries define the bandwidth of the signal. For instance, in audio applications, the human ear can typically hear sounds ranging from 20 Hz to 20 kHz, which means that the band limits for audio signals are set within this range.The importance of adhering to band limits cannot be overstated. If a signal exceeds its designated frequency range, it may lead to several issues, including interference, distortion, and degradation of the signal quality. This is particularly evident in wireless communication, where signals must share the same frequency spectrum. When multiple signals operate outside their band limits, they can interfere with one another, leading to poor reception and data loss.Moreover, the concept of band limits is also vital in the context of sampling theory. According to the Nyquist-Shannon sampling theorem, to accurately reconstruct a signal from its samples, the sampling frequency must be at least twice the highest frequency present in the signal. This reinforces the significance of understanding band limits when designing systems for digital signal processing. Failure to observe this principle can result in aliasing, where higher frequencies are misrepresented as lower frequencies, thereby distorting the original signal.In practical applications, engineers often utilize filters to manage band limits. Filters can be designed to allow only certain frequencies to pass while attenuating others. This is particularly useful in scenarios where specific frequency ranges are required for different applications. For example, in audio engineering, equalizers can adjust the levels of various frequency bands to enhance sound quality, ensuring that the output remains within the desired band limits.Furthermore, the advent of modern technology has expanded the ways in which band limits are analyzed and manipulated. Software-defined radio (SDR) technology allows for dynamic adjustment of band limits, enabling more flexible and efficient use of the available frequency spectrum. This adaptability is crucial in today’s fast-paced communication environment, where the demand for bandwidth continues to grow exponentially.In conclusion, the concept of band limits is fundamental in the fields of signal processing and telecommunications. A thorough understanding of these limits is essential for ensuring high-quality data transmission and preventing issues related to interference and distortion. As technology continues to evolve, so too will the methods for managing band limits, paving the way for more efficient and effective communication systems in the future.

在信号处理和电信领域，带限的概念在确定数据传输的质量和效率方面发挥着至关重要的作用。带限一词指的是信号可以在其中传输而不会显著失真或信息丢失的频率范围。理解这些限制对设计系统以通过各种媒介（如电缆、无线电波或光纤）传输音频、视频和其他形式的数据的工程师和技术人员至关重要。当我们谈论带限时，我们实际上是在讨论两个关键组成部分：频谱的下限和上限。下限表示可以有效传输的最小频率，而上限则表示最大频率。这两个边界共同定义了信号的带宽。例如，在音频应用中，人耳通常可以听到20 Hz到20 kHz之间的声音，这意味着音频信号的带限设定在这个范围内。遵守带限的重要性不容小觑。如果信号超出其指定的频率范围，可能会导致多个问题，包括干扰、失真和信号质量下降。这在无线通信中尤其明显，因为信号必须共享相同的频率谱。当多个信号在其带限之外运行时，它们可能会相互干扰，从而导致接收不良和数据丢失。此外，带限的概念在采样理论的背景下也至关重要。根据奈奎斯特-香农采样定理，为了准确重构信号，采样频率必须至少是信号中存在的最高频率的两倍。这进一步强调了在设计数字信号处理系统时理解带限的重要性。未能遵守这一原则可能导致混叠，其中高频率被错误地表示为低频率，从而扭曲原始信号。在实际应用中，工程师通常利用滤波器来管理带限。可以设计滤波器以仅允许某些频率通过，同时衰减其他频率。这在不同应用需要特定频率范围的情况下特别有用。例如，在音频工程中，均衡器可以调整各种频率带的水平，以增强音质，确保输出保持在所需的带限内。此外，现代技术的出现扩展了分析和操控带限的方式。软件定义无线电（SDR）技术允许动态调整带限，从而更灵活和高效地使用可用的频率谱。这种适应性在当今快速发展的通信环境中至关重要，因为对带宽的需求正在迅速增长。总之，带限的概念在信号处理和电信领域是基础性的。全面理解这些限制对于确保高质量的数据传输和防止与干扰和失真相关的问题至关重要。随着技术的不断发展，管理带限的方法也将不断演变，为未来更高效和有效的通信系统铺平道路。