center frequency

简明释义

中心频率未调制频率

英英释义

例句

1.In this filter design, we need to specify the center frequency for optimal performance.

在这个滤波器设计中，我们需要指定中心频率以获得最佳性能。

2.Different communication systems may operate at varying center frequencies.

不同的通信系统可能在不同的中心频率下运行。

3.The center frequency of the bandpass filter determines which frequencies can pass through.

带通滤波器的中心频率决定了哪些频率可以通过。

4.To improve signal quality, the technician calibrated the center frequency of the transmitter.

为了提高信号质量，技术人员校准了发射器的中心频率。

5.The audio engineer adjusted the center frequency to enhance the clarity of the vocals.

音频工程师调整了中心频率以增强人声的清晰度。

作文

In the realm of signal processing and telecommunications, understanding the concept of center frequency is crucial for optimizing system performance. The center frequency refers to the midpoint frequency of a band of frequencies, serving as a critical parameter in various applications such as radio communications, audio engineering, and filtering systems. By comprehending this term, we can better appreciate how signals are transmitted and received across different mediums.To elaborate, the center frequency is often associated with filters, which are designed to allow certain frequencies to pass through while attenuating others. For instance, in a bandpass filter, the center frequency defines the frequency at which the filter allows the maximum amplitude of the input signal to pass. This characteristic is essential for ensuring that the desired signal is transmitted effectively while minimizing interference from unwanted frequencies.In practical applications, the center frequency plays a pivotal role in wireless communication systems. When designing antennas, engineers must consider the center frequency to ensure optimal performance. An antenna tuned to the correct center frequency will radiate energy efficiently, allowing for clearer communication over longer distances. If the antenna is misaligned with the center frequency, it may result in poor signal quality, leading to dropped calls or data loss.Moreover, in audio engineering, the center frequency is vital in equalization processes. Audio engineers use equalizers to adjust the balance between frequency components within an audio signal. By targeting specific center frequencies, they can enhance or reduce certain aspects of the sound, creating a more pleasing listening experience. For example, boosting the center frequency of a bass guitar can add depth to a musical piece, while cutting the center frequency of a vocal track can help reduce muddiness in the mix.Furthermore, understanding the center frequency is essential in medical imaging technologies such as ultrasound. In these systems, the center frequency of the ultrasound waves is crucial for determining the resolution and penetration depth of the imaging. A higher center frequency provides better resolution but less penetration, making it suitable for imaging superficial structures. Conversely, a lower center frequency penetrates deeper but sacrifices some resolution, which is ideal for visualizing deeper organs.In conclusion, the importance of the center frequency cannot be overstated. Whether in telecommunications, audio engineering, or medical imaging, the center frequency serves as a fundamental concept that influences the design and functionality of various systems. By grasping this concept, professionals can make informed decisions that enhance performance and achieve desired outcomes in their respective fields. Thus, a thorough understanding of the center frequency is indispensable for anyone involved in these technical domains.

在信号处理和电信领域，理解中心频率的概念对于优化系统性能至关重要。中心频率是指一组频率的中间频率，它在无线通信、音频工程和过滤系统等各种应用中都是一个关键参数。通过理解这个术语，我们可以更好地欣赏信号如何在不同介质中传输和接收。进一步说，中心频率通常与滤波器相关，滤波器的设计目的是允许某些频率通过，同时衰减其他频率。例如，在带通滤波器中，中心频率定义了滤波器允许输入信号最大幅度通过的频率。这个特性对于确保所需信号有效传输，同时最小化来自不必要频率的干扰至关重要。在实际应用中，中心频率在无线通信系统中发挥着关键作用。在设计天线时，工程师必须考虑中心频率以确保最佳性能。调谐到正确中心频率的天线将有效辐射能量，从而实现更清晰的长距离通信。如果天线与中心频率不对齐，可能会导致信号质量差，导致通话中断或数据丢失。此外，在音频工程中，中心频率在均衡过程中至关重要。音频工程师使用均衡器调整音频信号中频率成分之间的平衡。通过针对特定的中心频率，他们可以增强或减少声音的某些方面，从而创造出更令人愉悦的听觉体验。例如，提升低音吉他的中心频率可以为音乐作品增添深度，而削减人声轨道的中心频率则有助于减少混音中的浑浊感。此外，了解中心频率在医学成像技术如超声波中也至关重要。在这些系统中，超声波的中心频率对成像的分辨率和穿透深度起着关键作用。较高的中心频率提供更好的分辨率，但穿透力较弱，适合成像表面结构。相反，较低的中心频率可以深入穿透，但牺牲了一些分辨率，这对于可视化更深的器官是理想的。总之，中心频率的重要性不容小觑。无论是在电信、音频工程还是医学成像中，中心频率都是影响各种系统设计和功能的基本概念。通过掌握这一概念，专业人员可以做出明智的决策，从而提高性能并在各自领域实现预期成果。因此，彻底理解中心频率对任何参与这些技术领域的人来说都是不可或缺的。