percentage modulation

简明释义

灯度

英英释义

例句

1.The audio engineer applied percentage modulation to enhance the sound quality.

音频工程师应用了百分比调制来增强音质。

2.By adjusting the percentage modulation, we can achieve a more dynamic visual effect.

通过调整百分比调制，我们可以实现更具动态的视觉效果。

3.The radio technician explained how percentage modulation affects signal clarity.

无线电技术员解释了百分比调制如何影响信号清晰度。

4.Using percentage modulation, the artist was able to create a unique sound texture.

通过使用百分比调制，艺术家能够创造出独特的声音纹理。

5.In this project, we will use percentage modulation to control the brightness of the LED lights.

在这个项目中，我们将使用百分比调制来控制LED灯的亮度。

作文

In the world of telecommunications and audio engineering, various techniques are employed to enhance the quality of transmission and sound. One such technique is known as percentage modulation, which plays a crucial role in controlling the amplitude of signals. To understand this concept better, we must first explore what modulation means in general. Modulation refers to the process of varying a carrier signal in order to transmit information. The carrier signal can be altered in several ways, including its amplitude, frequency, or phase. Among these methods, amplitude modulation (AM) is particularly significant, as it directly relates to percentage modulation. The term percentage modulation specifically refers to the extent to which the amplitude of a carrier signal is varied by the information signal. It is expressed as a percentage, indicating the ratio of the maximum deviation of the amplitude from its unmodulated level to the unmodulated level itself. For example, if a carrier signal has an unmodulated amplitude of 10 volts and the maximum deviation caused by the information signal is 2 volts, then the percentage modulation can be calculated as (2/10) * 100%, resulting in a modulation percentage of 20%. This percentage is critical, as it determines how effectively the information can be transmitted over the carrier wave.Understanding percentage modulation is essential for engineers and technicians who work with radio frequencies and audio systems. A higher percentage indicates a more pronounced effect of the modulating signal on the carrier, which can lead to clearer audio signals and better data transmission. However, excessive modulation can cause distortion, which may degrade the quality of the output. Therefore, it is vital to maintain an optimal range of percentage modulation to ensure that the transmitted signal retains its integrity and clarity.Moreover, percentage modulation is not only applicable in traditional radio broadcasting but also in modern digital communications. As technology advances, understanding the implications of modulation becomes increasingly important. For instance, in digital audio processing, maintaining the right percentage modulation ensures that the audio remains true to its original form while being transmitted over various platforms.In conclusion, percentage modulation is a fundamental concept in the field of modulation, particularly in amplitude modulation. It quantifies the extent to which a carrier signal is affected by the information signal, expressed as a percentage. By grasping this concept, one can appreciate the intricacies of signal transmission and the importance of modulation techniques in ensuring high-quality communication. As we continue to advance in technology, the relevance of percentage modulation will only grow, highlighting the need for professionals in the field to master this critical aspect of signal processing.

在电信和音频工程的世界中，采用各种技术来提高传输和声音的质量。其中一种被称为百分比调制的技术，在控制信号的幅度方面起着至关重要的作用。要更好地理解这个概念，我们首先必须探索调制的通用含义。调制是指通过改变载波信号来传输信息的过程。载波信号可以通过几种方式进行改变，包括其幅度、频率或相位。在这些方法中，幅度调制（AM）尤其重要，因为它与百分比调制直接相关。术语百分比调制特指信息信号对载波信号幅度变化的程度。它以百分比表示，指的是幅度最大偏差与其未调制水平的比率。例如，如果一个载波信号的未调制幅度为10伏，而信息信号导致的最大偏差为2伏，则百分比调制可计算为(2/10) * 100%，结果为20%的调制百分比。这个百分比至关重要，因为它决定了信息通过载波波形传输的有效性。理解百分比调制对于从事无线电频率和音频系统工作的工程师和技术人员至关重要。更高的百分比表示调制信号对载波的影响更加明显，这可以导致更清晰的音频信号和更好的数据传输。然而，过度调制可能会导致失真，从而降低输出质量。因此，保持百分比调制的最佳范围至关重要，以确保传输信号保持其完整性和清晰度。此外，百分比调制不仅适用于传统的广播电台，也适用于现代数字通信。随着技术的发展，理解调制的影响变得越来越重要。例如，在数字音频处理过程中，保持正确的百分比调制确保音频在通过各种平台传输时保持真实原貌。总之，百分比调制是调制领域中的一个基本概念，特别是在幅度调制中。它量化了信息信号对载波信号影响的程度，以百分比表示。通过掌握这一概念，人们可以欣赏信号传输的复杂性以及调制技术在确保高质量通信中的重要性。随着我们在技术上的不断进步，百分比调制的相关性只会增加，这突显了该领域专业人士掌握这一关键信号处理方面的必要性。