frequency modulation

简明释义

调频

英英释义

例句

1.In telecommunications, frequency modulation 调频 helps reduce noise and interference.

在电信中，frequency modulation 调频有助于减少噪声和干扰。

2.The radio station uses frequency modulation 调频 to provide clearer sound than amplitude modulation.

这个广播电台使用frequency modulation 调频来提供比幅度调制更清晰的声音。

3.The frequency modulation 调频 technique is widely applied in synthesizers to create various sounds.

Frequency modulation 调频技术广泛应用于合成器，以创建各种声音。

4.Many modern walkie-talkies utilize frequency modulation 调频 for better communication range.

许多现代对讲机利用frequency modulation 调频来获得更好的通信范围。

5.Frequency modulation 调频 is commonly used in FM broadcasting.

Frequency modulation 调频通常用于FM广播。

作文

In the world of telecommunications and broadcasting, various techniques are employed to transmit information over distances. One of the most significant methods is known as frequency modulation. This technique has revolutionized the way we communicate, providing clearer sound quality and better signal strength compared to its predecessor, amplitude modulation (AM). In frequency modulation (频率调制), the frequency of the carrier wave is varied in accordance with the amplitude of the input signal, which allows for a more efficient transmission of information. The concept of frequency modulation was first developed in the 1930s and has since become a cornerstone of modern radio communications. Unlike AM, where the strength of the signal varies, frequency modulation keeps the amplitude constant while changing the frequency. This characteristic makes it less susceptible to noise and interference, which is particularly advantageous in crowded frequency environments. As a result, FM radio stations can broadcast high-fidelity sound over long distances without significant degradation of quality. One of the primary advantages of frequency modulation is its ability to provide a clearer audio experience for listeners. When you tune into an FM radio station, you might notice that the sound is richer and more vibrant compared to AM stations. This quality is especially important for music broadcasts, where the nuances of sound can significantly affect the listening experience. The fidelity offered by frequency modulation has made it the preferred choice for music transmission. Moreover, frequency modulation is not limited to audio broadcasting. It also plays a critical role in two-way radio communications, such as those used by police, fire departments, and emergency services. These organizations rely on the clarity and reliability of FM signals to ensure effective communication during critical situations. The robustness of frequency modulation against interference is vital when lives are at stake, making it an essential technology in public safety communications. In addition to its applications in radio and communication, frequency modulation is also utilized in various electronic devices, including televisions and mobile phones. The ability to modulate frequencies allows these devices to transmit video and audio signals more efficiently. For instance, in television broadcasting, frequency modulation is used to carry the video information, while audio signals may be transmitted using different modulation techniques. This separation ensures that both audio and visual components maintain high quality, enhancing the overall viewing experience. As technology continues to advance, the principles of frequency modulation are being adapted and improved. Digital technologies have introduced new forms of modulation, but the fundamental concepts of frequency modulation remain relevant. With the rise of digital broadcasting and streaming services, understanding how frequency modulation works provides insight into the underlying principles that govern modern communication systems. In conclusion, frequency modulation is a crucial technique in the field of telecommunications. Its ability to provide clear, reliable signals has transformed the way we experience audio and visual content. From radio broadcasts to emergency communications, the impact of frequency modulation is evident in our daily lives. As we continue to innovate and explore new technologies, the foundational concepts of frequency modulation will undoubtedly play a significant role in shaping the future of communication.

在电信和广播的世界中，各种技术被用来在距离上发送信息。其中一种最重要的方法被称为频率调制。这种技术彻底改变了我们沟通的方式，与其前身幅度调制（AM）相比，提供了更清晰的音质和更强的信号强度。在频率调制中，载波波的频率根据输入信号的幅度变化，这使得信息能更有效地传输。

频率调制的概念最早是在20世纪30年代发展起来的，至今已成为现代无线电通信的基石。与AM不同，AM的信号强度会变化，而频率调制保持幅度不变，同时改变频率。这一特性使其对噪声和干扰的抗干扰能力更强，这在频率环境拥挤的情况下尤为有利。因此，FM电台能够在长距离内广播高保真音质，而不会显著降低质量。

频率调制的主要优点之一是能够为听众提供更清晰的音频体验。当你调频到一个FM电台时，你可能会注意到声音比AM电台更加丰富和生动。这种音质对于音乐广播尤其重要，因为声音的细微差别会显著影响听觉体验。频率调制所提供的保真度使其成为音乐传输的首选。

此外，频率调制不仅限于音频广播。它在双向无线电通信中也发挥着关键作用，例如警察、消防部门和紧急服务使用的通信。这些组织依赖FM信号的清晰度和可靠性，以确保在关键情况下的有效沟通。频率调制对干扰的强大抵抗力在生命攸关的情况下至关重要，使其成为公共安全通信中的重要技术。

除了在广播和通信中的应用，频率调制还被用于各种电子设备，包括电视和手机。调制频率的能力使这些设备能够更有效地传输视频和音频信号。例如，在电视广播中，频率调制用于承载视频信息，而音频信号可能使用不同的调制技术进行传输。这种分离确保了音频和视觉组件都保持高质量，从而增强整体观看体验。

随着技术的不断进步，频率调制的原理也在不断适应和改善。数字技术引入了新的调制形式，但频率调制的基本概念仍然相关。随着数字广播和流媒体服务的兴起，理解频率调制的工作原理为我们提供了对现代通信系统的基本原则的深入了解。

总之，频率调制是电信领域的一项关键技术。其提供清晰、可靠信号的能力改变了我们体验音频和视频内容的方式。从广播到紧急通信，频率调制的影响在我们的日常生活中显而易见。随着我们继续创新和探索新技术，频率调制的基础概念无疑将在塑造未来通信方面发挥重要作用。