sideband

简明释义

英[ˈsaɪdˌbænd]美[ˈsaɪdˌbænd]

n. [分化][电子] 边带；[电子] 旁带

英英释义

单词用法

同义词

反义词

例句

1.Practical performance is good, and our sealing sideband in practical after period of time, trimming surface will shine, not glue grey, constant dark, if brightness is new.

实用性能好，我们的封边带在实用一段时间后，修边表面会发亮，不会粘灰，不变黑，光亮如新。

2.This is a single sideband modulation source, for the signal and the signal has been modulated spectrum.

说明：这是单边带调制源码，求消息信号和已调信号的频谱。

3.This paper discussed the double sideband noise figures and single side band noise figures of the superheterodyne receivers in a ideal hypothesis and the practical case respectively.

分别讨论了在理想假设和实际情况下超外差接收机的双边带噪声系数和单边带噪声系数，给出了单边带接收机的某些设计方案。

4.The operating principle and performance of fractional-N phase locked loop (FNPLL) are described in detail, and the methods of suppressing FNPLL phase modulation sideband are introduced.

较详细介绍了分数分频锁相环的工作原理和特性，以及抑制分数分频锁相环相位调制边带的方法。

5.Jieyang YongXin Table Factory, Major producers of solid stainless steel bracelet, solid strap, including sideband, including films with and accessories.

揭阳市永兴表带厂主要生产不锈钢实心手链、实心表带、包边带、包片带及配件。

6.Dynamic study on sideband instability in a planar free electron laser has been conducted, and the method dealing with sideband instabilities in planar and free electron lasers are presented.

本文对平面形自由电子激光器中的边带不稳定性进行了动力学研究。

7.Quadrature Sideband Amplitude Modulation?

正交边带调幅QSAM ？

8.Spectrum of the amplitude-modulated wave is observed by a radio frequency spectrum analyzer and amplitude values of every spectrum are recorded at the upper sideband or lower sideband.

用射频频谱分析仪观测一个已调波的频谱成分，记录上边带或下边带中各条谱线的幅度值，从而可以根据有关算式计算出调制信号（音频信号）的失真度。

9.When tuning the radio, you might notice the sideband 边带 effects when signals overlap.

当调节收音机时，你可能会注意到信号重叠时的 边带 边带 效应。

10.In communication systems, the sideband 边带 carries additional information alongside the main signal.

在通信系统中，边带 边带 携带着与主信号一起的附加信息。

11.The radio receiver can filter out the main signal and focus on the sideband 边带 for clearer audio.

该收音机可以过滤掉主信号，专注于 边带 边带 以获得更清晰的音频。

12.The sideband 边带 modulation technique is often used in amateur radio communications.

在业余无线电通信中，通常使用 边带 边带 调制技术。

13.Engineers analyze the sideband 边带 noise to improve signal quality in telecommunication.

工程师分析 边带 边带 噪声以改善电信中的信号质量。

作文

In the world of telecommunications and radio broadcasting, the term sideband refers to the frequency bands that are generated alongside a carrier wave. This concept is crucial for understanding how information is transmitted over various media. When a signal is modulated, it creates additional frequencies that carry the actual information being sent. These additional frequencies are known as sidebands. There are typically two types of sidebands: upper and lower. The upper sideband contains frequencies above the carrier frequency, while the lower sideband consists of frequencies below it. This phenomenon is particularly important in amplitude modulation (AM) and single sideband modulation (SSB), which are widely used in radio communications.The importance of sidebands becomes evident when we consider the efficiency of signal transmission. In traditional AM broadcasting, both the upper and lower sidebands are transmitted along with the carrier wave. However, this can be wasteful in terms of bandwidth. Single sideband modulation was developed to address this issue by transmitting only one of the sidebands and suppressing the carrier wave. This not only conserves bandwidth but also improves the clarity and quality of the transmitted signal.Moreover, the concept of sidebands is not limited to radio communication. It appears in various fields such as audio processing, where sidebands can affect the quality of sound reproduction. For instance, when synthesizing sounds, the creation of sidebands can lead to richer and more complex tones, enhancing the listening experience.Understanding sidebands also has practical applications in modern technology. For example, in digital communications, the manipulation of sidebands can be used to encode data more efficiently. Techniques like quadrature amplitude modulation (QAM) utilize the properties of sidebands to transmit multiple bits of information simultaneously, greatly increasing data rates.In conclusion, the term sideband plays a vital role in the fields of telecommunications and signal processing. By understanding the nature and function of sidebands, one can appreciate the intricacies involved in effective communication systems. Whether it's through the airwaves or digital networks, sidebands are an essential component that facilitates the transmission of information, making them a fundamental concept in the study of modern communication technologies.

在电信和广播的世界中，术语sideband指的是与载波波形并行生成的频带。这个概念对于理解信息如何通过各种媒体传输至关重要。当信号被调制时，它会产生附加的频率，这些频率承载着所发送的实际信息。这些附加频率被称为sidebands。通常有两种类型的sidebands：上侧带和下侧带。上侧带包含高于载波频率的频率，而下侧带则由低于载波频率的频率组成。这一现象在幅度调制（AM）和单边带调制（SSB）中尤为重要，这些调制方式在无线电通信中广泛使用。当我们考虑信号传输的效率时，sidebands的重要性变得显而易见。在传统的AM广播中，上侧带和下侧带都与载波波形一起传输。然而，这在带宽方面可能是浪费的。单边带调制的出现是为了应对这个问题，它只传输一个sideband并抑制载波波形。这不仅节省了带宽，还提高了传输信号的清晰度和质量。此外，sidebands的概念不仅限于无线电通信。它出现在多个领域，例如音频处理，在这些领域中，sidebands可能会影响声音再现的质量。例如，在合成声音时，sidebands的产生可以导致更丰富和更复杂的音调，从而增强听觉体验。理解sidebands在现代技术中也具有实际应用。例如，在数字通信中，sidebands的操控可以用来更有效地编码数据。像正交振幅调制（QAM）这样的技术利用sidebands的特性同时传输多个比特的信息，大大提高了数据传输速率。总之，术语sideband在电信和信号处理领域中扮演着至关重要的角色。通过理解sidebands的性质和功能，人们可以欣赏到有效通信系统中涉及的复杂性。无论是通过无线电波还是数字网络，sidebands都是促进信息传输的基本组成部分，使其成为现代通信技术研究中的基本概念。