analog signal

简明释义

模拟信号

英英释义

例句

1.The old radio received an analog signal 模拟信号 that allowed us to listen to our favorite stations.

老式收音机接收到的模拟信号 模拟信号让我们能听到最喜欢的电台。

2.In many audio devices, the sound is produced through an analog signal 模拟信号 rather than digital processing.

在许多音频设备中，声音是通过模拟信号 模拟信号产生的，而不是数字处理。

3.An analog signal 模拟信号 can vary continuously, which is essential for representing real-world phenomena.

一个模拟信号 模拟信号可以连续变化，这对于表示现实世界现象至关重要。

4.The analog signal 模拟信号 from the microphone was converted into a digital format for editing.

麦克风的模拟信号 模拟信号被转换为数字格式以便编辑。

5.Television sets used to rely on analog signals 模拟信号 before the transition to digital broadcasting.

电视机在转向数字广播之前依赖于模拟信号 模拟信号。

作文

In the world of electronics and communication, the concept of an analog signal is fundamental to understanding how information is transmitted and processed. An analog signal refers to a type of signal that represents data through continuous changes in physical quantities. Typically, these signals are used to convey information such as sound, light, temperature, and other forms of data that can vary over time. Unlike digital signals, which represent data in discrete levels (0s and 1s), analog signals can take on any value within a given range, making them inherently more fluid and capable of capturing the nuances of real-world phenomena.The characteristics of an analog signal can be observed in various everyday applications. For instance, consider the way a vinyl record works. The grooves on the record are physically shaped to represent sound waves. As the needle moves along these grooves, it vibrates in accordance with the variations in the groove's shape, producing an analog signal that directly corresponds to the original sound wave. This process allows for a rich and warm sound quality, which many audiophiles prefer over digital formats.Another example of an analog signal can be found in traditional radio broadcasting. AM (Amplitude Modulation) and FM (Frequency Modulation) radio stations transmit audio signals as analog signals. In AM radio, the amplitude of the carrier wave is varied in proportion to the sound information being sent, while in FM radio, it is the frequency of the carrier wave that changes. Both methods effectively encode the audio information into the analog signal, allowing listeners to tune in and experience music and talk shows.Despite the prevalence of analog signals in the past, the rise of digital technology has shifted the landscape of communication and entertainment. Digital signals, which represent data in binary form, have several advantages over their analog counterparts. For one, digital signals are less susceptible to noise and interference, meaning they can provide clearer and more reliable transmission over long distances. Additionally, digital data can be easily compressed and stored, making it more efficient for modern applications such as streaming services and online communication.However, it is important to note that analog signals are not entirely obsolete. Many professionals still rely on analog technology in fields such as music production and broadcasting, where the warmth and depth of sound produced by analog signals are highly valued. Furthermore, some scientific measurements, such as temperature readings from certain sensors, are inherently analog in nature, requiring the use of analog signals for accurate representation.In conclusion, the analog signal plays a crucial role in the transmission of information in various forms, from sound to light. While digital technology continues to dominate many aspects of communication and data processing, analog signals retain their significance in specific applications where the continuity and richness of data are paramount. Understanding the differences between analog and digital signals is essential for anyone interested in electronics, telecommunications, or audio engineering. As technology evolves, the balance between analog and digital will continue to shape the future of how we communicate and experience the world around us.

在电子和通信的世界中，模拟信号的概念对于理解信息如何传输和处理至关重要。模拟信号指的是通过物理量的连续变化来表示数据的一种信号类型。通常，这些信号用于传达声音、光线、温度以及其他可以随时间变化的数据形式。与以离散级别（0和1）表示数据的数字信号不同，模拟信号可以在给定范围内取任意值，使其本质上更加流畅，并能够捕捉现实现象的细微差别。在各种日常应用中，可以观察到模拟信号的特征。例如，考虑一下黑胶唱片的工作原理。唱片上的凹槽是物理形状，用于表示声波。当针头沿着这些凹槽移动时，它会根据凹槽形状的变化而振动，产生与原始声波直接对应的模拟信号。这个过程允许产生丰富而温暖的音质，这也是许多音响爱好者偏爱黑胶格式而非数字格式的原因。另一个模拟信号的例子可以在传统的广播中找到。AM（调幅）和FM（调频）电台以模拟信号的形式传输音频信号。在AM广播中，载波波的幅度与被发送的声音信息成比例地变化，而在FM广播中，载波波的频率发生变化。这两种方法有效地将音频信息编码到模拟信号中，使听众能够调频并体验音乐和谈话节目。尽管模拟信号在过去广泛存在，但数字技术的兴起已经改变了通信和娱乐的格局。数字信号以二进制形式表示数据，相较于其模拟信号的对手有几个优势。首先，数字信号对噪声和干扰的抵抗力更强，这意味着它们可以在长距离传输中提供更清晰、更可靠的信号。此外，数字数据可以轻松压缩和存储，使其在现代应用中更加高效，例如流媒体服务和在线通信。然而，值得注意的是，模拟信号并没有完全过时。许多专业人士仍然依赖模拟技术，在音乐制作和广播等领域，模拟信号所产生的声音的温暖和深度受到高度重视。此外，一些科学测量，例如来自某些传感器的温度读数，本质上是模拟的，需要使用模拟信号进行准确表示。总之，模拟信号在各种形式的信息传输中发挥着至关重要的作用，从声音到光线。尽管数字技术继续主导通信和数据处理的许多方面，但在特定应用中，模拟信号仍然保持着其重要性，在这些应用中，数据的连续性和丰富性至关重要。了解模拟信号和数字信号之间的区别，对于任何对电子学、电信或音频工程感兴趣的人来说都是必不可少的。随着技术的发展，模拟和数字之间的平衡将继续塑造我们沟通和体验周围世界的未来。