frequency deviation

简明释义

频率偏移

英英释义

例句

1.The engineer measured the frequency deviation 频率偏差 of the signal to ensure it met the required specifications.

工程师测量了信号的频率偏差 frequency deviation以确保其符合要求的规格。

2.The frequency deviation 频率偏差 was analyzed to improve the accuracy of the radar system.

对频率偏差 frequency deviation进行了分析，以提高雷达系统的准确性。

3.In telecommunications, a significant frequency deviation 频率偏差 can lead to communication errors.

在电信中，显著的频率偏差 frequency deviation可能导致通信错误。

4.The technician adjusted the transmitter to correct the frequency deviation 频率偏差 observed during testing.

技术员调整了发射器，以修正测试中观察到的频率偏差 frequency deviation。

5.During the calibration process, we noticed an unexpected frequency deviation 频率偏差 in the measurement.

在校准过程中，我们注意到测量中出现了意外的频率偏差 frequency deviation。

作文

In the realm 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 signal and its intended or nominal frequency. This deviation can occur due to various factors including environmental influences, equipment imperfections, and modulation techniques used during transmission. Understanding frequency deviation is essential for engineers and technicians who work with communication systems, as it directly affects the quality and reliability of transmitted data.One of the primary applications of frequency deviation is in frequency modulation (FM) systems. In FM, the frequency of the carrier wave is varied in accordance with the amplitude of the input signal. The amount by which the frequency varies from its central value is known as frequency deviation. A larger frequency deviation can lead to better sound quality in audio transmissions, but it also requires a wider bandwidth, which can be a limiting factor in crowded frequency bands. Therefore, engineers must carefully balance the frequency deviation to optimize performance while minimizing interference with other signals.Moreover, frequency deviation is not only relevant to FM radio broadcasts; it is also significant in digital communications, where it can impact the integrity of data being transmitted. For instance, in phase-shift keying (PSK) systems, small deviations can result in errors in data interpretation. This is why precise control over frequency deviation is vital, as it ensures that the receiver can accurately decode the transmitted information without misinterpretation.Additionally, monitoring frequency deviation is important for maintaining system performance. In many modern communication systems, automatic frequency control (AFC) circuits are employed to detect and correct frequency deviation. These systems continuously measure the frequency of the incoming signal and adjust the local oscillator to compensate for any deviations. This feedback loop helps maintain signal integrity and ensures that communication remains clear and uninterrupted.The implications of frequency deviation extend beyond technical specifications; they also have practical consequences in real-world applications. For example, in aviation communication systems, accurate frequency management is critical for ensuring the safety of flights. Any significant frequency deviation could lead to communication failures between pilots and air traffic control, potentially resulting in dangerous situations. Therefore, rigorous testing and calibration of communication equipment are essential to minimize frequency deviation and ensure reliable operation.In conclusion, frequency deviation is a fundamental concept in the fields of telecommunications and signal processing. Its impact on signal quality, data integrity, and system performance cannot be overstated. As technology continues to advance, understanding and managing frequency deviation will remain a key focus for engineers and technicians in order to enhance communication systems and ensure their reliability. Through careful analysis and application of this concept, we can continue to improve the way we transmit and receive information, paving the way for more efficient and effective communication solutions in the future.

在电信和信号处理领域，频率偏差的概念在理解信号的传输和接收中起着至关重要的作用。频率偏差指的是信号的实际频率与其预期或标称频率之间的差异。这种偏差可能由于各种因素而发生，包括环境影响、设备缺陷以及在传输过程中使用的调制技术。理解频率偏差对于从事通信系统工作的工程师和技术人员至关重要，因为它直接影响到传输数据的质量和可靠性。频率偏差的主要应用之一是在频率调制（FM）系统中。在FM中，载波波的频率根据输入信号的幅度变化。频率的变化量被称为频率偏差。较大的频率偏差可以提高音频传输的音质，但也需要更宽的带宽，这在频率拥挤的情况下可能成为限制因素。因此，工程师必须仔细平衡频率偏差，以优化性能，同时最小化与其他信号的干扰。此外，频率偏差不仅与FM广播相关；它在数字通信中也具有重要意义，因为它会影响传输数据的完整性。例如，在相位移键控（PSK）系统中，微小的偏差可能导致数据解释错误。这就是为什么对频率偏差进行精确控制至关重要，因为它确保接收器能够准确解码传输的信息，而不会产生误解。此外，监测频率偏差对于维护系统性能也很重要。在许多现代通信系统中，采用自动频率控制（AFC）电路来检测和校正频率偏差。这些系统不断测量输入信号的频率，并调整本地振荡器以补偿任何偏差。这个反馈循环有助于保持信号的完整性，并确保通信清晰且不中断。频率偏差的影响不仅限于技术规格；它在现实世界应用中也具有实际后果。例如，在航空通信系统中，准确的频率管理对于确保飞行安全至关重要。任何显著的频率偏差都可能导致飞行员与空中交通管制之间的通信失败，从而可能导致危险情况。因此，严格测试和校准通信设备对于最小化频率偏差并确保可靠操作至关重要。总之，频率偏差是电信和信号处理领域的一个基本概念。它对信号质量、数据完整性和系统性能的影响不容小觑。随着技术的不断进步，理解和管理频率偏差将继续成为工程师和技术人员的重点，以增强通信系统并确保其可靠性。通过对这一概念的仔细分析和应用，我们可以继续改善信息的传输和接收方式，为未来更高效、更有效的通信解决方案铺平道路。