indirect frequency modulation

简明释义

间接调频

英英释义

例句

1.The research paper detailed how indirect frequency modulation 间接频率调制 can be applied in satellite communications.

这篇研究论文详细说明了如何在卫星通信中应用间接频率调制 indirect frequency modulation。

2.In modern communication systems, indirect frequency modulation 间接频率调制 is often used to enhance signal quality.

在现代通信系统中，间接频率调制 indirect frequency modulation 常用于提高信号质量。

3.When designing a new radio transmitter, incorporating indirect frequency modulation 间接频率调制 can improve performance.

在设计新的无线电发射器时，加入间接频率调制 indirect frequency modulation 可以提高性能。

4.Engineers prefer indirect frequency modulation 间接频率调制 for its ability to minimize distortion in audio signals.

工程师们更喜欢间接频率调制 indirect frequency modulation，因为它能最大限度地减少音频信号的失真。

5.The indirect frequency modulation 间接频率调制 technique allows for more efficient transmission of data over long distances.

这种间接频率调制 indirect frequency modulation 技术允许在长距离上传输数据时更加高效。

作文

In the realm of telecommunications and signal processing, various techniques are employed to modulate signals for effective transmission. One such technique is indirect frequency modulation, which plays a crucial role in enhancing the quality and efficiency of communication systems. To understand this concept better, we must first delve into the basics of frequency modulation (FM) itself.Frequency modulation is a method where the frequency of a carrier wave is varied in accordance with the amplitude of the input signal. This technique is widely used in radio broadcasting, where the audio signal modulates the frequency of the radio waves, allowing for high-fidelity sound transmission. However, direct frequency modulation can sometimes lead to complications, especially in terms of bandwidth and signal integrity.This is where indirect frequency modulation comes into play. Instead of directly varying the frequency of the carrier wave, this technique involves an intermediate step. In indirect frequency modulation, the input signal is first converted into a phase-modulated signal, which is then used to modulate the frequency of the carrier wave. This approach offers several advantages, such as improved noise performance and reduced distortion.One of the primary benefits of indirect frequency modulation is its ability to maintain the integrity of the transmitted signal over long distances. By using phase modulation as an intermediary, the system can effectively mitigate the effects of noise that often plague direct frequency modulation systems. This characteristic is particularly advantageous in environments where signal degradation is a concern, such as in mobile communications or satellite transmissions.Moreover, indirect frequency modulation allows for more efficient use of bandwidth. In traditional FM systems, the bandwidth required can be quite large, which may not be feasible in crowded frequency bands. The indirect approach can help compress the bandwidth requirements, enabling multiple signals to coexist within the same spectrum without causing interference.The application of indirect frequency modulation extends beyond telecommunications. It is also utilized in various fields such as radar and audio processing. For instance, in radar systems, this technique enables precise distance measurements by modulating the frequency of the emitted signals. In audio applications, it can enhance the quality of sound reproduction, making it a valuable tool for sound engineers and producers.In conclusion, indirect frequency modulation represents a sophisticated method of signal modulation that enhances the performance and reliability of communication systems. By understanding its principles and applications, we can appreciate its significance in modern technology. As we continue to advance in the fields of telecommunications and signal processing, techniques like indirect frequency modulation will undoubtedly play a pivotal role in shaping the future of how we communicate and share information.

在电信和信号处理领域，为有效传输信号，采用了多种调制技术。其中一种技术是间接频率调制，它在提升通信系统质量和效率方面发挥着重要作用。要更好地理解这一概念，我们首先必须深入了解频率调制（FM）本身的基础知识。频率调制是一种方法，其中载波波的频率根据输入信号的幅度而变化。这种技术广泛应用于广播电台，其中音频信号调制无线电波的频率，从而实现高保真声音传输。然而，直接频率调制有时会导致一些复杂问题，特别是在带宽和信号完整性方面。这就是间接频率调制发挥作用的地方。与直接改变载波波的频率不同，这种技术涉及一个中间步骤。在间接频率调制中，输入信号首先被转换为相位调制信号，然后用于调制载波波的频率。这种方法提供了几个优点，如改善的噪声性能和减少的失真。间接频率调制的主要好处之一是其在长距离传输中保持信号完整性的能力。通过将相位调制作为中介，系统可以有效减轻直接频率调制系统常见的噪声影响。这一特性在信号衰减可能成为问题的环境中特别有利，例如移动通信或卫星传输。此外，间接频率调制还允许更有效地使用带宽。在传统的FM系统中，所需的带宽可能相当大，这在频率拥挤的情况下可能不可行。间接方法可以帮助压缩带宽需求，使多个信号能够在同一频谱中共存而不会造成干扰。间接频率调制的应用不仅限于电信。它还被广泛应用于雷达和音频处理等各个领域。例如，在雷达系统中，这种技术通过调制发射信号的频率来实现精确的距离测量。在音频应用中，它可以提高声音再现的质量，使其成为音频工程师和制作人的宝贵工具。总之，间接频率调制代表了一种复杂的信号调制方法，增强了通信系统的性能和可靠性。通过理解其原理和应用，我们可以欣赏到它在现代技术中的重要性。随着我们在电信和信号处理领域的不断进步，像间接频率调制这样的技术无疑将在塑造我们沟通和信息共享的未来中发挥关键作用。