pilot signal

简明释义

监控信号

英英释义

例句

1.The engineer adjusted the frequency of the pilot signal to improve communication clarity.

工程师调整了导频信号的频率，以提高通信清晰度。

2.During the testing phase, we monitored the strength of the pilot signal to ensure stability.

在测试阶段，我们监测了导频信号的强度以确保稳定性。

3.In radar systems, the pilot signal helps in distinguishing between real targets and noise.

在雷达系统中，导频信号有助于区分真实目标和噪声。

4.The pilot signal can be used to calibrate the system before full-scale operation.

导频信号可用于在全面运行之前校准系统。

5.The pilot signal is crucial for synchronizing the transmission in wireless networks.

导频信号对于无线网络中的传输同步至关重要。

作文

In the realm of telecommunications and signal processing, the term pilot signal refers to a specific type of signal that is used to aid in the synchronization and calibration of communication systems. Essentially, a pilot signal serves as a reference point for receivers in a system, allowing them to effectively interpret the transmitted data. This concept is crucial in various applications, including wireless communications, digital broadcasting, and radar systems.The primary function of a pilot signal is to provide a stable and known reference that can be utilized by receivers to adjust their settings for optimal performance. For instance, in a wireless communication scenario, the receiver may need to adjust its frequency or timing to align with the incoming signal. The pilot signal acts as a beacon, guiding the receiver to make these necessary adjustments. Without such a reference, the receiver might struggle to decode the information accurately, leading to degraded performance or complete failure in communication.Moreover, pilot signals are often embedded within the main signal transmission, ensuring that they are always available for the receiver's use. This is particularly important in environments where signal conditions can fluctuate due to interference, noise, or fading effects. By continuously monitoring the pilot signal, the receiver can adapt to these changes in real time, maintaining a reliable connection.In addition to their role in synchronization, pilot signals can also be used for channel estimation. In modern communication systems, especially those utilizing advanced modulation techniques, it is essential to understand the characteristics of the transmission channel to optimize data rates and minimize errors. The pilot signal provides valuable information about the channel conditions, allowing the system to adjust its parameters accordingly.For example, in Long Term Evolution (LTE) networks, pilot signals are employed extensively to support both synchronization and channel estimation. The network periodically transmits these signals, which are then used by mobile devices to establish a connection and determine the best way to transmit and receive data. This process is vital for ensuring high-quality service and efficient use of available bandwidth.Furthermore, the importance of pilot signals extends beyond just synchronization and channel estimation. They also play a significant role in aiding error correction processes. In many communication systems, data is transmitted with redundancy to allow for error detection and correction. The presence of a pilot signal can enhance the ability of the system to identify and rectify errors, further improving the reliability of the communication link.In conclusion, the concept of a pilot signal is integral to the functioning of modern communication systems. By providing a reliable reference for synchronization, channel estimation, and error correction, pilot signals ensure that data can be transmitted and received accurately, even in challenging conditions. As technology continues to evolve, the role of pilot signals will likely expand, further enhancing the efficiency and reliability of communication systems worldwide.

在电信和信号处理领域，术语导频信号指的是一种特定类型的信号，用于帮助同步和校准通信系统。基本上，导频信号作为系统中接收器的参考点，使它们能够有效地解释传输的数据。这个概念在无线通信、数字广播和雷达系统等各种应用中至关重要。导频信号的主要功能是提供一个稳定且已知的参考，接收器可以利用它来调整设置以获得最佳性能。例如，在无线通信场景中，接收器可能需要调整其频率或时序，以与传入信号对齐。导频信号充当灯塔，指导接收器进行这些必要的调整。如果没有这样的参考，接收器可能会难以准确解码信息，从而导致性能下降或通信完全失败。此外，导频信号通常嵌入在主信号传输中，确保接收器始终可以使用。这在信号条件因干扰、噪声或衰落效应而波动的环境中尤为重要。通过持续监测导频信号，接收器可以实时适应这些变化，从而保持可靠的连接。除了在同步中的作用，导频信号还可用于信道估计。在现代通信系统中，特别是在利用先进调制技术的系统中，了解传输信道的特性对于优化数据速率和最小化错误至关重要。导频信号提供了有关信道条件的宝贵信息，使系统能够相应调整其参数。例如，在长期演进（LTE）网络中，导频信号被广泛用于支持同步和信道估计。网络定期发送这些信号，移动设备随后使用它们建立连接并确定传输和接收数据的最佳方式。这个过程对于确保高质量服务和有效利用可用带宽至关重要。此外，导频信号的重要性不仅限于同步和信道估计。它们在帮助错误纠正过程中也起着重要作用。在许多通信系统中，数据以冗余方式传输，以允许进行错误检测和纠正。导频信号的存在可以增强系统识别和纠正错误的能力，进一步提高通信链路的可靠性。总之，导频信号的概念对现代通信系统的运作至关重要。通过提供可靠的同步、信道估计和错误纠正参考，导频信号确保数据能够准确地传输和接收，即使在困难条件下。随着技术的不断发展，导频信号的作用可能会进一步扩展，进一步提高全球通信系统的效率和可靠性。