modulated wave

简明释义

已调波

英英释义

例句

1.The scientist analyzed the modulated wave patterns to determine the frequency response of the system.

科学家分析了调制波模式，以确定系统的频率响应。

2.The radio transmitter sends out a modulated wave to carry audio signals over long distances.

无线电发射器发出一个调制波以在长距离内传输音频信号。

3.The modulated wave can be demodulated at the receiver end to retrieve the original message.

在接收端，调制波可以被解调以恢复原始消息。

4.In AM radio, the amplitude of the carrier signal is varied to create a modulated wave that conveys sound.

在调幅广播中，载波信号的振幅被改变，以创建一个传递声音的调制波。

5.In fiber optic communication, information is transmitted using a modulated wave of light.

在光纤通信中，信息是通过一束调制波光来传输的。

作文

In the realm of communication technology, understanding the concept of a modulated wave is essential. A modulated wave refers to a wave whose characteristics have been altered to encode information. This process of modulation is fundamental in transmitting signals over various media, such as radio waves, optical fibers, and even through the air. The basic idea behind modulation is to modify certain properties of the carrier wave—such as its amplitude, frequency, or phase—in order to convey information effectively.The significance of modulated waves can be observed in everyday technologies. For instance, when you listen to your favorite FM radio station, the sound waves produced by the music are converted into electrical signals. These signals are then used to modulate a carrier wave, which travels through the air to your radio. The radio demodulates this modulated wave, extracting the original audio signal so that you can enjoy the music.There are various types of modulation techniques, including Amplitude Modulation (AM), Frequency Modulation (FM), and Phase Modulation (PM). Each of these methods alters the carrier wave in different ways. In AM, the amplitude of the wave is varied, while in FM, it is the frequency that changes. PM, on the other hand, involves altering the phase of the wave. Understanding these techniques helps us appreciate how modulated waves facilitate communication in our modern world.Moreover, modulated waves are not limited to audio signals. They are also crucial in data transmission, particularly in digital communications. In digital modulation, binary data is encoded onto a carrier wave, allowing for efficient transfer of information over long distances. Techniques such as Quadrature Amplitude Modulation (QAM) and Phase Shift Keying (PSK) are commonly used in digital systems, enabling high-speed internet connections and mobile communications.The role of modulated waves extends beyond just communication. They are also utilized in various fields such as radar technology, medical imaging, and remote sensing. For example, radar systems use modulated waves to detect objects and measure their distance, speed, and direction. In medical imaging, techniques like MRI rely on modulated waves to create detailed images of the inside of the body, aiding in diagnosis and treatment.In conclusion, the concept of a modulated wave is integral to the functioning of many technologies we rely on daily. From radio broadcasts to internet connectivity, modulated waves enable the transmission of information across vast distances. As technology continues to advance, the importance of understanding and utilizing modulated waves will only grow, paving the way for innovations in communication and beyond. Thus, grasping the principles behind modulated waves is not just beneficial for engineers and scientists but for anyone interested in the mechanics of modern technology.

在通信技术领域，理解“调制波”的概念是至关重要的。“调制波”指的是其特性被改变以编码信息的波。这种调制过程在通过各种媒介（如无线电波、光纤甚至空气）传输信号时是基础。调制的基本思想是修改载波波的某些属性——例如其幅度、频率或相位——以有效地传达信息。“调制波”的重要性可以在日常技术中观察到。例如，当你收听自己喜欢的FM广播电台时，音乐产生的声波会被转换为电信号。这些信号随后用于调制载波波，这个波通过空气传播到你的收音机。收音机对这个“调制波”进行解调，提取出原始音频信号，以便你欣赏音乐。调制技术有多种类型，包括幅度调制（AM）、频率调制（FM）和相位调制（PM）。每种方法以不同的方式改变载波波。在AM中，波的幅度被变化，而在FM中，变化的是频率。另一方面，PM涉及到波的相位变化。理解这些技术有助于我们欣赏“调制波”如何在我们现代世界中促进通信。此外，“调制波”不仅限于音频信号。它们在数据传输中也至关重要，特别是在数字通信中。在数字调制中，二进制数据被编码到载波波上，从而允许高效的信息传输。像四相位幅度调制（QAM）和相位键控（PSK）等技术通常用于数字系统，使高速互联网连接和移动通信成为可能。“调制波”的作用不仅仅局限于通信。它们还被广泛应用于雷达技术、医学成像和遥感等多个领域。例如，雷达系统利用“调制波”来检测物体并测量其距离、速度和方向。在医学成像中，像MRI这样的技术依赖于“调制波”来创建身体内部的详细图像，有助于诊断和治疗。总之，“调制波”的概念对于我们日常依赖的许多技术的运作是不可或缺的。从广播到互联网连接，“调制波”使得信息能够跨越广阔的距离进行传输。随着技术的不断进步，理解和利用“调制波”的重要性只会增加，为通信及其他领域的创新铺平道路。因此，掌握“调制波”背后的原理不仅对工程师和科学家有益，对任何对现代技术机制感兴趣的人来说也是如此。