pilot signal

简明释义

领示信号

英英释义

例句

1.During the flight test, the aircraft sent out a pilot signal to indicate its position.

在飞行测试期间，飞机发送了一个导频信号以指示其位置。

2.The TV station transmitted a pilot signal to ensure the broadcast quality was optimal.

电视台发射了一个导频信号以确保广播质量最佳。

3.A pilot signal is often used in telecommunications to synchronize data transfer.

导频信号常用于电信中以同步数据传输。

4.The engineer used a pilot signal to test the communication link between the two devices.

工程师使用了一个导频信号来测试两个设备之间的通信链接。

5.In radar systems, a pilot signal helps in identifying the target's location.

在雷达系统中，导频信号有助于确定目标的位置。

作文

In the field of telecommunications and signal processing, the term pilot signal refers to a specific type of signal that is used as a reference point for various functions, including synchronization, channel estimation, and equalization. Understanding the role of a pilot signal is crucial for anyone involved in the design and implementation of communication systems. It serves as a benchmark against which other signals can be measured, ensuring that data transmission is efficient and reliable.The primary purpose of a pilot signal is to provide a known reference that can help receivers accurately interpret the incoming data. For instance, in wireless communication, the pilot signal can be embedded within the data stream and transmitted alongside the actual information. This allows the receiver to identify the characteristics of the channel, such as noise and distortion, which may affect the quality of the received signal.One of the most significant advantages of using a pilot signal is its ability to facilitate channel estimation. In practical scenarios, the communication channel can vary due to environmental factors, interference, and mobility of the users. By analyzing the pilot signal, the receiver can adapt to these changes in real-time, improving the overall performance of the system. This adaptability is particularly important in modern wireless technologies, such as LTE and 5G, where user mobility and varying channel conditions are commonplace.Moreover, a pilot signal plays a vital role in synchronization. In multi-user systems, it is essential for different users to be synchronized to avoid interference. The pilot signal helps in achieving this synchronization by providing a timing reference. When multiple users transmit their signals, the presence of a pilot signal allows the base station to align the incoming signals correctly, thereby minimizing cross-talk and enhancing the system's capacity.Another application of the pilot signal is in equalization. Equalization is the process of adjusting the received signal to compensate for distortions that occur during transmission. By using a pilot signal, the receiver can identify the specific distortions introduced by the channel and apply the necessary corrections. This results in clearer and more accurate data reception, which is especially critical in applications like voice and video communications.In summary, the concept of a pilot signal is integral to modern communication systems. Its functions in synchronization, channel estimation, and equalization contribute significantly to the reliability and efficiency of data transmission. As technology continues to evolve, the importance of pilot signals will only increase, making it essential for engineers and researchers to understand and implement these signals effectively. With the advent of advanced communication technologies, the future looks promising for innovations that leverage the capabilities of pilot signals to enhance connectivity and user experience in our increasingly digital world.

在电信和信号处理领域，术语pilot signal指的是一种特定类型的信号，用作各种功能的参考点，包括同步、信道估计和均衡。理解pilot signal的作用对于任何参与通信系统设计和实施的人来说都是至关重要的。它作为一个基准，使其他信号能够被测量，从而确保数据传输高效可靠。pilot signal的主要目的是提供一个已知的参考，帮助接收器准确解释传入的数据。例如，在无线通信中，pilot signal可以嵌入数据流中，并与实际信息一起传输。这使得接收器能够识别信道的特性，如噪声和失真，这些因素可能会影响接收信号的质量。使用pilot signal的一个显著优势是它能够促进信道估计。在实际场景中，由于环境因素、干扰和用户的移动性，通信信道可能会变化。通过分析pilot signal，接收器可以实时适应这些变化，从而提高系统的整体性能。这种适应性在现代无线技术中尤为重要，例如LTE和5G，其中用户的移动性和信道条件的变化是普遍存在的。此外，pilot signal在同步中也发挥着重要作用。在多用户系统中，不同用户必须同步，以避免干扰。pilot signal通过提供时间参考来帮助实现这种同步。当多个用户发送信号时，pilot signal的存在使基站能够正确对齐接收到的信号，从而最小化串扰并增强系统的容量。pilot signal的另一个应用是在均衡中。均衡是调整接收到的信号以补偿在传输过程中发生的失真的过程。通过使用pilot signal，接收器可以识别信道引入的特定失真，并应用必要的校正。这导致更清晰、更准确的数据接收，这在语音和视频通信等应用中尤为关键。总之，pilot signal的概念是现代通信系统不可或缺的一部分。它在同步、信道估计和均衡中的功能显著提升了数据传输的可靠性和效率。随着技术的不断发展，pilot signals的重要性只会增加，因此工程师和研究人员必须有效理解和实施这些信号。随着先进通信技术的出现，利用pilot signals的能力来增强我们日益数字化世界中的连接性和用户体验的创新前景看起来非常光明。