phase-locked detection

简明释义

相位同步检波相位锁定检波

英英释义

例句

1.The radio receiver employs phase-locked detection to improve the clarity of the received signal.

该无线电接收器采用相位锁定检测来提高接收到的信号的清晰度。

2.The use of phase-locked detection in radar systems enhances target tracking accuracy.

在雷达系统中使用相位锁定检测可以提高目标跟踪的准确性。

3.In digital communications, phase-locked detection is crucial for synchronizing the transmitter and receiver.

在数字通信中，相位锁定检测对于同步发射机和接收机至关重要。

4.Engineers often rely on phase-locked detection when designing frequency synthesizers.

工程师在设计频率合成器时通常依赖于相位锁定检测。

5.The phase-locked detection technique allows for stable and precise frequency measurements.

相位锁定检测技术允许进行稳定和精确的频率测量。

作文

In the realm of signal processing and communications, the concept of phase-locked detection plays a crucial role in ensuring accurate data transmission and reception. This technique is primarily used to synchronize the phase of a received signal with that of a reference signal, which is essential for demodulating various types of signals, especially in the presence of noise and other interferences.The fundamental principle behind phase-locked detection lies in the ability to extract information from a carrier wave by locking onto its phase. This is particularly important in scenarios where the signal's amplitude may fluctuate due to environmental factors or other disturbances. By maintaining a consistent phase relationship between the reference and the received signal, this technique allows for improved detection accuracy and reliability.One of the most common applications of phase-locked detection is found in communication systems, such as radio and television broadcasting. In these systems, the transmitted signal often undergoes various forms of distortion during its journey through the air. The use of phase-locked loops (PLLs) enables the receiver to track the phase of the incoming signal, thus facilitating effective demodulation and retrieval of the original information.Moreover, phase-locked detection is not limited to traditional communication systems. It is also extensively utilized in modern digital communications, including satellite communications and wireless networks. As the demand for high-speed data transfer continues to grow, the importance of this technique becomes increasingly evident. By employing advanced phase-locked techniques, engineers can develop more robust systems capable of handling higher data rates while minimizing errors caused by phase shifts and frequency variations.In addition to telecommunications, phase-locked detection finds applications in various fields such as radar systems, where accurate target detection and tracking are paramount. In radar technology, phase-locked detection allows for the precise measurement of distance and velocity of objects by analyzing the phase differences between transmitted and received signals. This capability enhances the effectiveness of radar systems in both civilian and military applications.Furthermore, the implementation of phase-locked detection in instrumentation and control systems has revolutionized how we monitor and regulate processes. For instance, in industrial automation, phase-locked loops are employed to ensure that machinery operates in synchronization with control signals, thereby improving efficiency and reducing the likelihood of errors. This synchronization is vital in processes where timing is critical, such as in assembly lines or robotic operations.To summarize, phase-locked detection is an indispensable technique in the fields of signal processing, telecommunications, and beyond. Its ability to maintain synchronization between signals amidst noise and interference makes it a cornerstone of modern communication and control systems. As technology continues to advance, the significance of phase-locked detection will only increase, paving the way for innovations that enhance our ability to transmit and receive information accurately and efficiently.

相位锁定检测在信号处理和通信领域中发挥着至关重要的作用，确保数据传输和接收的准确性。这种技术主要用于将接收信号的相位与参考信号的相位同步，这对于解调各种类型的信号尤其重要，特别是在噪声和其他干扰存在的情况下。相位锁定检测的基本原理在于通过锁定到载波信号的相位来提取信息。这在信号幅度可能因环境因素或其他干扰而波动的情况下尤为重要。通过保持参考信号与接收信号之间的一致相位关系，这项技术提高了检测的准确性和可靠性。相位锁定检测最常见的应用之一是在通信系统中，例如广播电台和电视。在这些系统中，传输信号在传播过程中常常会经历各种形式的失真。使用相位锁定环（PLL）使接收器能够跟踪传入信号的相位，从而有效地解调和检索原始信息。此外，相位锁定检测并不限于传统通信系统。它还广泛应用于现代数字通信，包括卫星通信和无线网络。随着对高速数据传输的需求不断增长，这项技术的重要性愈加明显。通过采用先进的相位锁定技术，工程师可以开发出更强大的系统，能够处理更高的数据速率，同时最小化由相位偏移和频率变化引起的错误。除了电信，相位锁定检测还在雷达系统等多个领域中找到了应用，在这些领域中，准确的目标检测和跟踪至关重要。在雷达技术中，相位锁定检测允许通过分析发射信号与接收信号之间的相位差来精确测量物体的距离和速度。这一能力增强了雷达系统在民用和军事应用中的有效性。此外，在仪器和控制系统中实施相位锁定检测彻底改变了我们监控和调节过程的方式。例如，在工业自动化中，相位锁定环被用于确保机器与控制信号同步运行，从而提高效率并减少错误的可能性。这种同步在时间至关重要的过程中是必不可少的，例如在生产线或机器人操作中。总之，相位锁定检测是信号处理、通信及其他领域中不可或缺的技术。它在噪声和干扰中保持信号同步的能力使其成为现代通信和控制系统的基石。随着技术的不断进步，相位锁定检测的重要性只会增加，为提高我们准确高效地传输和接收信息的能力铺平道路。