time invariant channel

简明释义

非时变信道

英英释义

A time invariant channel is a communication channel whose characteristics do not change over time, meaning that the input-output relationship remains constant regardless of when the signal is transmitted.

时间不变信道是指其特性随时间不发生变化的通信信道,这意味着输入与输出之间的关系在信号传输的任何时刻都保持不变。

例句

1.A time invariant channel 时不变信道 is crucial for ensuring reliable data transfer in digital communications.

在数字通信中,时不变信道 time invariant channel 对于确保可靠的数据传输至关重要。

2.In a time invariant channel 时不变信道, the impulse response remains constant, making it easier to predict system behavior.

时不变信道 time invariant channel 中,脉冲响应保持不变,使得预测系统行为变得更容易。

3.In wireless communication, a time invariant channel 时不变信道 allows for consistent signal transmission over time.

在无线通信中,时不变信道 time invariant channel 允许信号在时间上保持一致的传输。

4.When modeling a time invariant channel 时不变信道, engineers can assume that the channel characteristics do not change during transmission.

在建模时不变信道 time invariant channel 时,工程师可以假设信道特性在传输过程中保持不变。

5.The analysis of a time invariant channel 时不变信道 simplifies the design of communication systems.

时不变信道 time invariant channel 的分析简化了通信系统的设计。

作文

In the field of communication systems, understanding the concept of a time invariant channel is crucial for designing effective transmission strategies. A time invariant channel refers to a communication channel whose characteristics do not change over time. This means that the way signals are transmitted and received remains consistent, regardless of when the transmission occurs. This property is particularly important in various applications such as wireless communications, data transmission, and signal processing.To grasp the significance of a time invariant channel, it is essential to compare it with a time-varying channel. In a time-varying channel, the conditions can change due to factors like mobility, environmental interference, or changes in the medium through which the signal travels. For instance, in mobile communications, as a user moves, the channel characteristics can fluctuate, leading to variations in signal strength and quality. This variability poses challenges for maintaining reliable communication, as it requires adaptive techniques to compensate for the changing conditions.On the other hand, a time invariant channel simplifies the analysis and design of communication systems. When engineers know that the channel will behave consistently over time, they can develop more straightforward models and algorithms. This predictability allows for more efficient coding and modulation schemes, ultimately enhancing the performance of the communication system.One practical example of a time invariant channel can be found in wired communication systems, such as fiber optic networks. Once the optical fibers are installed and the environment is stable, the transmission characteristics remain relatively constant. This stability enables high data rates and reliable connections, making fiber optics a preferred choice for internet and telecommunication services.Moreover, the concept of a time invariant channel is foundational in the study of linear systems in engineering. In control theory, for instance, systems are often modeled as time-invariant to simplify the analysis of their behavior. By applying techniques such as Laplace transforms and frequency domain analysis, engineers can predict how systems will respond to various inputs without worrying about time-dependent changes.In summary, the notion of a time invariant channel plays a pivotal role in the realm of communication and signal processing. Its stability allows for the development of reliable communication systems, enabling efficient data transmission across various platforms. Understanding this concept not only aids engineers in designing robust systems but also enhances our overall comprehension of how information is conveyed in a consistent manner. As technology continues to advance, the principles surrounding time invariant channels will remain integral to ensuring effective communication in an increasingly interconnected world.

在通信系统领域,理解“时间不变信道”的概念对于设计有效的传输策略至关重要。“时间不变信道”是指一个通信信道的特性在时间上保持不变。这意味着信号的传输和接收方式无论何时发生都保持一致。这一特性在无线通信、数据传输和信号处理等各种应用中尤为重要。为了理解“时间不变信道”的重要性,有必要将其与时间变化信道进行比较。在时间变化信道中,由于移动性、环境干扰或信号传播介质的变化等因素,条件可能会发生变化。例如,在移动通信中,当用户移动时,信道特性可能会波动,从而导致信号强度和质量的变化。这种变化给保持可靠通信带来了挑战,因为它需要自适应技术来补偿变化的条件。另一方面,“时间不变信道”简化了通信系统的分析和设计。当工程师知道信道在时间上会一致表现时,他们可以开发出更简单的模型和算法。这种可预测性使得编码和调制方案更加高效,最终提升了通信系统的性能。“时间不变信道”的一个实际例子可以在有线通信系统中找到,例如光纤网络。一旦光纤安装完毕且环境稳定,传输特性就会相对恒定。这种稳定性使得高数据传输速率和可靠连接成为可能,使光纤成为互联网和电信服务的首选。此外,“时间不变信道”的概念在工程中的线性系统研究中是基础。在控制理论中,系统通常被建模为时间不变,以简化其行为分析。通过应用拉普拉斯变换和频域分析等技术,工程师可以预测系统对各种输入的响应,而无需担心时间依赖的变化。总之,“时间不变信道”的概念在通信和信号处理领域发挥着关键作用。其稳定性允许开发可靠的通信系统,从而在各种平台上实现高效的数据传输。理解这一概念不仅有助于工程师设计稳健的系统,也增强了我们对信息以一致方式传递的整体理解。随着技术的不断进步,围绕“时间不变信道”的原则将继续对确保在日益互联的世界中实现有效通信至关重要。

相关单词

invariant

invariant详解:怎么读、什么意思、用法