channel capacity

简明释义

信道容量

英英释义

例句

1.In digital communications, the channel capacity determines the maximum data rate.

在数字通信中，信道容量决定了最大数据传输速率。

2.The channel capacity can be affected by interference from other signals.

其他信号的干扰可能会影响信道容量。

3.To improve communication, we need to increase the channel capacity in our system.

为了改善通信，我们需要增加系统中的信道容量。

4.The channel capacity of this network is limited by the bandwidth available.

这个网络的信道容量受可用带宽的限制。

5.Engineers are working to optimize the channel capacity for better performance.

工程师们正在努力优化信道容量以提高性能。

作文

In the field of information theory, the term channel capacity refers to the maximum rate at which information can be transmitted over a communication channel without error. Understanding channel capacity is crucial for designing efficient communication systems, whether they are wired or wireless. The concept was first introduced by Claude Shannon in his groundbreaking work in the 1940s, which laid the foundation for modern telecommunications. To better grasp the significance of channel capacity, we can consider a simple analogy. Imagine trying to pour water into a glass. The size of the glass determines how much water it can hold at once. Similarly, the channel capacity of a communication system defines the maximum amount of data that can be sent through it in a given time frame. If you exceed this limit, the data may become corrupted or lost, leading to communication failures. One of the key factors that influence channel capacity is the bandwidth of the channel. Bandwidth refers to the range of frequencies that a communication channel can support. A channel with a wider bandwidth can carry more data simultaneously, thus increasing its channel capacity. For instance, fiber optic cables have a much higher bandwidth compared to traditional copper wires, allowing them to transmit vast amounts of data quickly and efficiently. Another important aspect to consider is noise, which can interfere with the signal being transmitted. Noise can come from various sources, such as electrical interference or environmental factors. The presence of noise reduces the effective channel capacity because it makes it harder to distinguish the intended signal from the background disturbances. This is why engineers strive to design systems that minimize noise and maximize the clarity of the transmitted information. Moreover, the concept of channel capacity is not limited to physical communication channels. It can also apply to other forms of data transmission, such as wireless networks and even biological systems. For example, in wireless communication, factors like distance, obstacles, and signal strength can all affect the channel capacity. As technology advances, researchers continue to explore ways to enhance channel capacity, enabling faster and more reliable communications. In conclusion, channel capacity is a fundamental concept in information theory that plays a vital role in the design and operation of communication systems. By understanding the factors that affect channel capacity, such as bandwidth and noise, engineers and researchers can develop more efficient methods for transmitting information. As our world becomes increasingly connected, the importance of maximizing channel capacity will only continue to grow, paving the way for innovations in telecommunications and beyond.

在信息理论领域，术语信道容量指的是在没有错误的情况下，通过通信信道传输信息的最大速率。理解信道容量对设计高效的通信系统至关重要，无论是有线还是无线。这个概念首次由克劳德·香农在20世纪40年代的开创性工作中提出，为现代电信奠定了基础。为了更好地理解信道容量的重要性，我们可以考虑一个简单的类比。想象一下试图将水倒入一个玻璃杯中。杯子的大小决定了它一次能容纳多少水。类似地，通信系统的信道容量定义了在给定时间内可以通过它发送的最大数据量。如果超出此限制，数据可能会变得损坏或丢失，导致通信失败。影响信道容量的一个关键因素是信道的带宽。带宽指的是通信信道可以支持的频率范围。带宽越宽的信道可以同时承载更多的数据，从而增加其信道容量。例如，光纤电缆相比传统的铜线具有更高的带宽，因此能够快速有效地传输大量数据。另一个重要方面是噪声，它可能干扰正在传输的信号。噪声可能来自各种来源，例如电气干扰或环境因素。噪声的存在降低了有效的信道容量，因为它使得从背景干扰中区分出预期信号变得更加困难。这就是为什么工程师努力设计能够最小化噪声并最大化传输信息清晰度的系统。此外，信道容量的概念不仅限于物理通信信道。它也可以应用于其他形式的数据传输，例如无线网络甚至生物系统。例如，在无线通信中，距离、障碍物和信号强度等因素都可能影响信道容量。随着技术的进步，研究人员继续探索增强信道容量的方法，从而实现更快、更可靠的通信。总之，信道容量是信息理论中的一个基本概念，在通信系统的设计和运行中发挥着至关重要的作用。通过理解影响信道容量的因素，如带宽和噪声，工程师和研究人员可以开发出更高效的信息传输方法。随着我们的世界变得日益互联，最大化信道容量的重要性只会继续增长，为电信及其他领域的创新铺平道路。