pass band

简明释义

传递频带

英英释义

例句

1.Engineers often design circuits with specific pass bands to filter out unwanted noise.

工程师通常设计具有特定通带的电路，以过滤掉不必要的噪声。

2.The pass band of this equalizer can be adjusted to enhance certain audio frequencies.

这个均衡器的通带可以调整，以增强某些音频频率。

3.Understanding the pass band characteristics helps in designing better communication systems.

理解通带特性有助于设计更好的通信系统。

4.The audio filter allows frequencies within the pass band to be amplified while attenuating others.

音频滤波器允许在通带内的频率被放大，同时衰减其他频率。

5.In telecommunications, the pass band is crucial for ensuring clear signal transmission.

在电信中，通带对确保信号清晰传输至关重要。

作文

In the field of signal processing, the term pass band refers to a specific range of frequencies that can pass through a filter without significant attenuation. This concept is crucial in various applications, including telecommunications, audio engineering, and even medical imaging. Understanding the pass band is essential for engineers and technicians who design and implement systems that rely on accurate signal transmission. To elaborate, a filter is designed to allow certain frequencies to pass while blocking others. The pass band defines the frequency range that is permitted to pass through the filter. For example, in audio systems, a low-pass filter may have a pass band that allows frequencies below 2000 Hz to pass, effectively blocking higher frequencies. Conversely, a high-pass filter might allow frequencies above a certain threshold to pass, creating a distinct sound profile. The width of the pass band is also an important consideration. A wider pass band means that more frequencies are allowed to pass through, which can be beneficial in applications where a broad spectrum of signals is necessary. However, this may also introduce unwanted noise or interference. On the other hand, a narrower pass band can provide cleaner signals but may limit the range of usable frequencies. Engineers must carefully balance these factors when designing filters.Filters can be categorized into different types based on their pass band characteristics. For instance, band-pass filters are designed to allow a specific range of frequencies to pass while attenuating frequencies outside this range. This is particularly useful in radio communications, where it is essential to isolate a particular channel from others. The pass band of a band-pass filter is defined by its lower and upper cutoff frequencies, and these parameters are critical in determining the filter's effectiveness. In medical imaging, understanding the pass band is vital for techniques like MRI and ultrasound. These technologies rely on filtering out noise to produce clear images. The pass band settings can significantly affect the quality of the images produced, making it a central focus for medical engineers and technicians. In summary, the term pass band signifies a range of frequencies that a filter allows to pass through with minimal loss. Its significance spans various fields, including telecommunications, audio engineering, and medical imaging. By mastering the concept of the pass band, professionals can enhance the performance of their systems, ensuring that signals are transmitted clearly and effectively. As technology continues to advance, the importance of understanding the pass band will only grow, making it a fundamental concept in modern engineering practices.

在信号处理领域，术语pass band指的是可以通过滤波器而没有显著衰减的特定频率范围。这个概念在各种应用中至关重要，包括电信、音频工程甚至医学成像。理解pass band对于设计和实施依赖于准确信号传输的系统的工程师和技术人员来说是必不可少的。详细来说，滤波器被设计用来允许某些频率通过，同时阻止其他频率。pass band定义了允许通过滤波器的频率范围。例如，在音频系统中，低通滤波器可能具有允许2000 Hz以下频率通过的pass band，有效地阻止更高的频率。相反，高通滤波器可能允许某个阈值以上的频率通过，从而创建一个独特的声音特征。pass band的宽度也是一个重要的考虑因素。更宽的pass band意味着更多的频率被允许通过，这在需要广泛信号谱的应用中是有利的。然而，这也可能引入不必要的噪声或干扰。另一方面，更窄的pass band可以提供更清晰的信号，但可能限制可用频率的范围。工程师在设计滤波器时必须仔细平衡这些因素。根据其pass band特征，滤波器可以分为不同类型。例如，带通滤波器旨在允许特定频率范围的信号通过，同时衰减该范围之外的频率。这在无线电通信中尤其有用，因为必须从其他信道中隔离特定信道。带通滤波器的pass band由其下限和上限截止频率定义，这些参数对确定滤波器的有效性至关重要。在医学成像中，了解pass band对于MRI和超声等技术至关重要。这些技术依赖于过滤噪声以生成清晰的图像。pass band设置会显著影响所产生图像的质量，使其成为医疗工程师和技术人员的关注重点。总之，术语pass band表示滤波器允许通过的频率范围，其损失最小。它的重要性跨越多个领域，包括电信、音频工程和医学成像。通过掌握pass band的概念，专业人员可以提高其系统的性能，确保信号清晰有效地传输。随着技术的不断进步，理解pass band的重要性只会增加，使其成为现代工程实践中的基本概念。