frequency deviation

简明释义

频率偏移

英英释义

例句

1.The technician adjusted the settings to reduce the frequency deviation 频率偏差 to acceptable levels.

技术员调整设置以将频率偏差降低到可接受的水平。

2.The frequency deviation 频率偏差 observed in the oscillator could lead to performance issues.

在振荡器中观察到的频率偏差可能会导致性能问题。

3.Monitoring frequency deviation 频率偏差 is essential for maintaining communication quality in radio systems.

监测频率偏差对维持无线电系统的通信质量至关重要。

4.To ensure accurate measurements, it is crucial to minimize frequency deviation 频率偏差 during calibration.

为了确保准确的测量，在校准过程中至关重要的是最小化频率偏差。

5.The engineer noted a significant frequency deviation 频率偏差 in the signal processing system.

工程师注意到信号处理系统中存在显著的频率偏差。

作文

In the field of telecommunications and signal processing, the concept of frequency deviation plays a crucial role in understanding how signals are transmitted and received. Frequency deviation refers to the difference between the actual frequency of a transmitted signal and its nominal or expected frequency. This deviation can occur due to various factors, including environmental conditions, equipment limitations, and interference from other signals. Understanding frequency deviation is essential for engineers and technicians as they work to optimize communication systems and ensure clear signal transmission.One of the primary causes of frequency deviation is the Doppler effect, which occurs when there is relative motion between the transmitter and receiver. For instance, if a mobile phone user is moving while making a call, the frequency of the signal may shift due to the movement. This shift can lead to distortions in the audio quality and may require adjustments to the communication system to maintain clarity. Engineers must account for this frequency deviation when designing systems that will be used in dynamic environments, such as vehicles or airplanes.Another factor that contributes to frequency deviation is temperature fluctuations. Electronic components can behave differently at varying temperatures, causing shifts in their operational frequencies. For example, crystal oscillators, which are commonly used in communication devices, can experience changes in frequency output due to temperature variations. By monitoring and compensating for these changes, engineers can minimize frequency deviation and enhance the reliability of the communication system.Interference from other electronic devices can also cause frequency deviation. When multiple signals operate in close proximity, they can interfere with one another, leading to variations in frequency and signal degradation. This is particularly problematic in densely populated urban areas where numerous devices are in use simultaneously. To combat this issue, engineers often implement frequency hopping techniques or spread spectrum technologies, which help to mitigate the effects of interference and reduce frequency deviation.The implications of frequency deviation extend beyond just telecommunications; it also has significant applications in broadcasting and radar systems. In broadcasting, maintaining the correct frequency is vital for ensuring that listeners receive clear audio without distortion. Similarly, in radar systems, accurate frequency measurements are critical for detecting and tracking objects. Any frequency deviation can result in miscalculations and potentially dangerous situations, particularly in military or aviation contexts.To summarize, frequency deviation is an important concept that affects various fields, including telecommunications, broadcasting, and radar technology. It is essential for professionals in these areas to understand the causes and implications of frequency deviation to design effective and reliable systems. By addressing the challenges associated with frequency deviation, engineers can improve the quality of communication and enhance the safety and efficiency of technological applications. As technology continues to evolve, the need for precise frequency management will only become more critical, making the study of frequency deviation an ongoing area of research and development.

在通信和信号处理领域，频率偏差的概念在理解信号如何传输和接收方面起着至关重要的作用。频率偏差是指传输信号的实际频率与其标称或预期频率之间的差异。这种偏差可能由于各种因素而发生，包括环境条件、设备限制以及其他信号的干扰。理解频率偏差对工程师和技术人员至关重要，因为他们努力优化通信系统并确保清晰的信号传输。造成频率偏差的主要原因之一是多普勒效应，当发射器和接收器之间存在相对运动时，就会发生这种情况。例如，如果一个移动电话用户在通话时移动，信号的频率可能会由于运动而发生变化。这种变化可能导致音质失真，可能需要对通信系统进行调整以保持清晰度。工程师在设计将在动态环境中使用的系统时，必须考虑这种频率偏差，例如在车辆或飞机中。温度波动也是导致频率偏差的一个因素。电子元件在不同温度下的表现可能不同，导致其工作频率发生变化。例如，晶体振荡器通常用于通信设备，由于温度变化，它们的频率输出可能会发生变化。通过监测和补偿这些变化，工程师可以最小化频率偏差并增强通信系统的可靠性。来自其他电子设备的干扰也可能导致频率偏差。当多个信号在近距离操作时，它们可能相互干扰，导致频率变化和信号降级。在人口稠密的城市地区，这尤其成问题，因为同时使用的设备数量众多。为了应对这个问题，工程师通常实施频率跳跃技术或扩频技术，这有助于减轻干扰的影响并减少频率偏差。频率偏差的影响不仅限于通信；它在广播和雷达系统中也具有重要应用。在广播中，保持正确的频率对于确保听众接收到清晰的音频而不失真至关重要。同样，在雷达系统中，准确的频率测量对于检测和跟踪物体至关重要。任何频率偏差都可能导致错误计算，并可能导致潜在危险的情况，特别是在军事或航空环境中。总之，频率偏差是一个重要的概念，影响多个领域，包括通信、广播和雷达技术。专业人士在这些领域理解频率偏差的原因和影响，对于设计有效和可靠的系统至关重要。通过解决与频率偏差相关的挑战，工程师可以提高通信质量，并增强技术应用的安全性和效率。随着技术的不断发展，对精确频率管理的需求只会变得更加关键，使得对频率偏差的研究和开发成为一个持续的领域。