analogue-to-digital conversion

简明释义

模数转换；仿真数字转换

英英释义

例句

1.The process of analogue-to-digital conversion 模拟到数字转换 allows us to record sound in a digital format.

将声音记录为数字格式的过程是模拟到数字转换。

2.The quality of analogue-to-digital conversion 模拟到数字转换 can significantly affect the final audio output.

模拟到数字转换的质量会显著影响最终的音频输出。

3.In modern photography, analogue-to-digital conversion 模拟到数字转换 is essential for transforming film images into digital files.

在现代摄影中，模拟到数字转换对于将胶卷图像转换为数字文件是必不可少的。

4.Many music producers rely on analogue-to-digital conversion 模拟到数字转换 to create high-quality recordings.

许多音乐制作人依赖于模拟到数字转换来制作高质量的录音。

5.Devices that perform analogue-to-digital conversion 模拟到数字转换 are crucial in the field of telecommunications.

在电信领域，执行模拟到数字转换的设备至关重要。

作文

In the modern world, technology plays a crucial role in our daily lives. One of the fundamental processes that enable the seamless integration of analog devices with digital systems is known as analogue-to-digital conversion. This process involves transforming continuous signals, which are characteristic of analog devices, into discrete digital values that can be easily processed by computers and other digital equipment. Understanding analogue-to-digital conversion is essential for anyone interested in electronics, telecommunications, or audio and video processing.To begin with, it is important to grasp what analog signals are. Analog signals are continuous waveforms that represent physical quantities. For instance, the sound waves produced by a musical instrument or a person's voice are analog signals. These waves vary smoothly over time and can take on an infinite number of values within a given range. However, computers and digital devices operate using binary code, which consists of discrete values (0s and 1s). Therefore, to utilize analog signals in a digital context, we must convert them through analogue-to-digital conversion.The analogue-to-digital conversion process typically involves two main steps: sampling and quantization. Sampling refers to the process of measuring the amplitude of an analog signal at regular intervals, known as the sampling rate. The higher the sampling rate, the more accurately the digital representation will reflect the original analog signal. For example, in audio processing, CDs use a sampling rate of 44.1 kHz, which means the analog audio signal is sampled 44,100 times per second.Once the analog signal has been sampled, the next step is quantization. Quantization involves mapping the sampled values to a finite set of levels, which can then be represented as binary numbers. This step introduces a degree of error known as quantization noise, but it is usually minimal if the quantization levels are sufficiently high. The result of this process is a digital signal that closely approximates the original analog waveform.The importance of analogue-to-digital conversion cannot be overstated. It is widely used in various applications, including music recording, telecommunications, and video broadcasting. For instance, when you record music using a microphone, the sound waves are captured as analog signals. These signals are then converted into digital format, allowing for editing, storage, and playback on digital devices such as computers and smartphones.Moreover, analogue-to-digital conversion is also critical in medical technology. Devices like electrocardiograms (ECGs) and ultrasound machines rely on this conversion to accurately capture and analyze biological signals. By converting these analog signals into digital data, healthcare professionals can monitor patients' health more effectively and make informed decisions based on precise measurements.In conclusion, analogue-to-digital conversion is a vital process that bridges the gap between the analog world and the digital realm. As technology continues to evolve, understanding this conversion process will become increasingly important for engineers, developers, and anyone involved in tech-related fields. Whether it is in music production, telecommunications, or medical diagnostics, the ability to convert analog signals into digital data has transformed how we interact with technology and has opened up new possibilities for innovation and advancement.

在现代世界中，技术在我们的日常生活中扮演着至关重要的角色。使模拟设备与数字系统无缝集成的基本过程之一被称为模拟到数字转换。这个过程涉及将连续信号（模拟设备的特征）转换为离散的数字值，这些值可以被计算机和其他数字设备轻松处理。理解模拟到数字转换对于任何对电子、通信或音频和视频处理感兴趣的人来说都是至关重要的。首先，了解什么是模拟信号是很重要的。模拟信号是代表物理量的连续波形。例如，乐器或人声产生的声音波就是模拟信号。这些波随时间平滑变化，并且可以在给定范围内取无限多个值。然而，计算机和数字设备使用二进制代码进行操作，该代码由离散值（0和1）组成。因此，为了在数字上下文中利用模拟信号，我们必须通过模拟到数字转换进行转换。模拟到数字转换过程通常包括两个主要步骤：采样和量化。采样是指在规则间隔内测量模拟信号幅度的过程，称为采样率。采样率越高，数字表示越能准确反映原始模拟信号。例如，在音频处理中，CD使用44.1 kHz的采样率，这意味着模拟音频信号每秒采样44,100次。一旦模拟信号被采样，下一步是量化。量化涉及将采样值映射到有限的级别，这些级别可以表示为二进制数字。这一步引入了一个称为量化噪声的误差，但如果量化级别足够高，这通常是微不足道的。这个过程的结果是一个数字信号，它与原始模拟波形非常接近。模拟到数字转换的重要性不容小觑。它广泛应用于各种领域，包括音乐录制、通信和视频广播。例如，当你使用麦克风录制音乐时，声音波以模拟信号的形式被捕捉。这些信号随后被转换为数字格式，从而允许在计算机和智能手机等数字设备上进行编辑、存储和播放。此外，模拟到数字转换在医疗技术中也至关重要。心电图（ECG）和超声波机器等设备依赖于这种转换来准确捕捉和分析生物信号。通过将这些模拟信号转换为数字数据，医疗专业人员可以更有效地监测患者的健康状况，并根据精确的测量做出明智的决策。总之，模拟到数字转换是一个至关重要的过程，它弥合了模拟世界和数字领域之间的差距。随着技术的不断发展，理解这一转换过程对工程师、开发人员以及任何参与技术相关领域的人来说将变得越来越重要。无论是在音乐制作、通信还是医疗诊断中，将模拟信号转换为数字数据的能力都改变了我们与技术的互动方式，并为创新和进步开辟了新的可能性。