frequency modulation

简明释义

频率调制

英英释义

例句

1.Understanding frequency modulation is essential for anyone studying telecommunications.

理解频率调制对任何学习电信的人来说都是必不可少的。

2.FM radios are popular because they use frequency modulation to reduce noise.

FM收音机很受欢迎，因为它们使用频率调制来减少噪音。

3.The radio station uses frequency modulation to transmit clear audio signals.

这个广播电台使用频率调制来传输清晰的音频信号。

4.In frequency modulation, the frequency of the carrier wave is varied to encode information.

在频率调制中，载波的频率被变化以编码信息。

5.Many modern communication systems rely on frequency modulation for better sound quality.

许多现代通信系统依赖于频率调制以获得更好的音质。

作文

Frequency modulation (FM) is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. Unlike amplitude modulation (AM), which varies the amplitude of the carrier signal to encode information, frequency modulation (频率调制) alters the frequency of the carrier wave. This results in a signal that is less susceptible to noise and interference, making FM a preferred choice for high-fidelity broadcasts such as music and voice transmissions.The principle behind frequency modulation lies in the relationship between the signal being transmitted and the frequency of the carrier wave. When the input signal increases, the frequency of the carrier wave also increases, and when the input signal decreases, so does the frequency of the carrier wave. This relationship allows for a more efficient transmission of data, particularly over long distances.One of the most significant advantages of frequency modulation is its resistance to noise. In an AM signal, any interference can lead to fluctuations in amplitude, which can distort the sound quality. However, since FM signals vary in frequency rather than amplitude, they maintain a clearer sound even in the presence of noise. This property makes FM ideal for music broadcasts, where audio quality is paramount.Moreover, frequency modulation has applications beyond just radio broadcasting. It is widely used in television audio, two-way radios, and even in certain types of digital data transmission. For example, in the realm of wireless communications, FM is utilized in various technologies, including mobile phones and satellite communications. The ability to transmit clear signals over long distances without significant degradation is crucial in these applications.In addition to its technical advantages, frequency modulation has also influenced the development of music and sound synthesis. Many synthesizers use FM techniques to create complex sounds and textures that are not possible with traditional analog methods. This has led to a new genre of electronic music that utilizes the unique characteristics of FM synthesis to produce innovative sounds.In conclusion, frequency modulation (频率调制) is a vital technology in modern communications, offering numerous benefits such as improved sound quality and resistance to interference. Its applications span across various fields, from broadcasting to telecommunications and music production. Understanding FM not only enhances our appreciation of radio and audio technologies but also highlights the importance of innovation in the way we communicate and experience sound. As technology continues to evolve, the principles of frequency modulation will undoubtedly play a crucial role in shaping the future of electronic communication.

频率调制（FM）是一种用于电子通信的技术，最常用于通过无线电载波传输信息。与调幅（AM）不同，调幅通过改变载波信号的幅度来编码信息，而频率调制（频率调制）则改变载波波的频率。这导致信号对噪声和干扰的抗性更强，使得FM成为高保真广播（如音乐和语音传输）的首选。频率调制背后的原理在于被传输信号与载波波频率之间的关系。当输入信号增加时，载波波的频率也会增加；当输入信号降低时，载波波的频率也会降低。这种关系允许更有效的数据传输，特别是在长距离传输中。频率调制的一个重要优势是其对噪声的抵抗。在AM信号中，任何干扰都可能导致幅度的波动，从而扭曲音质。然而，由于FM信号的变化是频率而非幅度，因此即使在存在噪声的情况下，它们仍能保持清晰的声音。这一特性使得FM非常适合音乐广播，在这种情况下，音频质量至关重要。此外，频率调制还在广播之外有广泛的应用。它广泛用于电视音频、对讲机，甚至某些类型的数字数据传输。例如，在无线通信领域，FM被用于各种技术，包括手机和卫星通信。能够在长距离上传输清晰信号而不会显著退化，对于这些应用至关重要。除了技术优势外，频率调制还影响了音乐和声音合成的发展。许多合成器使用FM技术来创造复杂的声音和纹理，这些是传统模拟方法无法实现的。这导致了一种新的电子音乐风格，利用FM合成的独特特性来产生创新的声音。总之，频率调制（频率调制）是现代通信中的一项重要技术，提供了诸多好处，如改善音质和抗干扰能力。它的应用跨越多个领域，从广播到电信和音乐制作。理解FM不仅增强了我们对无线电和音频技术的欣赏，也突显了创新在我们沟通和体验声音方式中的重要性。随着技术的不断发展，频率调制的原理无疑将在塑造电子通信的未来中发挥关键作用。