bandwidth limited signal

简明释义

带宽限定信号;

英英释义

例句

1.The engineer explained how to improve the transmission of bandwidth limited signals.

工程师解释了如何改善带宽受限信号的传输。

2.In remote areas, users often experience bandwidth limited signals when streaming content.

在偏远地区，用户在流媒体播放时经常会遇到带宽受限信号。

3.The video quality was poor due to the bandwidth limited signal.

由于带宽受限信号，视频质量很差。

4.During peak hours, the internet can become a bandwidth limited signal environment.

在高峰时段，互联网可能变成一个带宽受限信号的环境。

5.We need to optimize our network to handle bandwidth limited signals more effectively.

我们需要优化网络，以更有效地处理带宽受限信号。

作文

In the world of telecommunications and signal processing, the term bandwidth limited signal refers to a type of signal that is restricted in its frequency range. This limitation can arise due to various factors, including the physical properties of the transmission medium, the design of the communication system, or intentional constraints imposed for efficiency. Understanding bandwidth limited signals is crucial for engineers and technicians who work in fields such as audio engineering, radio communications, and data transmission.A bandwidth limited signal essentially means that the signal does not occupy the entire spectrum of frequencies available to it. For example, in audio signals, a typical human voice may only utilize frequencies between 300 Hz and 3400 Hz. Thus, if we were to transmit this voice signal without any modifications, it would be considered a bandwidth limited signal. The significance of this concept becomes evident when we consider how signals are transmitted and received across different mediums.When dealing with bandwidth limited signals, one must consider the impact of bandwidth on the quality and fidelity of the signal. A signal that is too limited in bandwidth may lose important information, leading to distortion or loss of clarity. This is particularly critical in applications such as music streaming, where a narrow bandwidth might result in a loss of audio quality, making the listening experience less enjoyable.Moreover, the effects of bandwidth limitations can be observed in digital communications as well. In this context, the bandwidth limited signal can lead to issues such as intersymbol interference (ISI), where the overlapping of adjacent symbols can cause confusion in the interpretation of the received data. Engineers often employ various techniques to mitigate these effects, such as equalization and filtering, to ensure that the integrity of the signal is maintained despite the bandwidth restrictions.Another important aspect of bandwidth limited signals is their relationship with noise. In a real-world scenario, all signals are affected by noise, which can further complicate the transmission of a bandwidth limited signal. The presence of noise can mask the signal's components, making it difficult to distinguish between the desired signal and the unwanted interference. Therefore, understanding the characteristics of both the signal and the noise is essential for designing effective communication systems.In conclusion, the concept of bandwidth limited signals plays a fundamental role in the fields of telecommunications and signal processing. By recognizing the limitations imposed by bandwidth, engineers can design systems that optimize signal transmission while minimizing distortion and noise. As technology continues to evolve, the need for efficient communication methods will only grow, making the study of bandwidth limited signals increasingly relevant. Whether in audio applications, data transmission, or wireless communications, a thorough understanding of this concept is vital for anyone involved in the field. Ultimately, mastering the intricacies of bandwidth limited signals can lead to improved performance and reliability in various technological applications.

在电信和信号处理的世界中，术语带宽受限信号指的是一种频率范围受到限制的信号。这种限制可能由于多种因素而产生，包括传输介质的物理特性、通信系统的设计或为了效率而施加的故意限制。理解带宽受限信号对于在音频工程、无线电通信和数据传输等领域工作的工程师和技术人员至关重要。带宽受限信号本质上意味着该信号并未占用可用频谱中的整个频率。例如，在音频信号中，典型的人声可能仅利用300 Hz到3400 Hz之间的频率。因此，如果我们在没有任何修改的情况下传输这个人声信号，它将被视为带宽受限信号。当我们考虑信号在不同介质中的传输与接收时，这一概念的重要性变得显而易见。在处理带宽受限信号时，必须考虑带宽对信号质量和保真度的影响。带宽过于有限的信号可能会丢失重要信息，导致失真或清晰度丧失。这在音乐流媒体等应用中尤为关键，因为狭窄的带宽可能导致音频质量的下降，使听觉体验不那么愉快。此外，带宽限制的影响也可以在数字通信中观察到。在这种情况下，带宽受限信号可能导致符号间干扰（ISI）等问题，其中相邻符号的重叠可能导致接收数据的解读混淆。工程师通常采用各种技术来减轻这些影响，例如均衡和滤波，以确保尽管存在带宽限制，信号的完整性仍然得到保持。带宽受限信号的另一个重要方面是它们与噪声的关系。在现实场景中，所有信号都受到噪声的影响，这可能进一步复杂化带宽受限信号的传输。噪声的存在可能掩盖信号的组成部分，使得难以区分所需信号和不必要的干扰。因此，了解信号和噪声的特征对于设计有效的通信系统至关重要。总之，带宽受限信号的概念在电信和信号处理领域中发挥着基础性作用。通过认识带宽所施加的限制，工程师可以设计出优化信号传输并最小化失真的系统。随着技术的不断发展，对高效通信方法的需求只会增加，使得对带宽受限信号的研究变得越来越相关。无论是在音频应用、数据传输还是无线通信中，彻底理解这一概念对于任何参与该领域的人都是至关重要的。最终，掌握带宽受限信号的复杂性可以在各种技术应用中提高性能和可靠性。