frequency-modulation index

简明释义

调频指数

英英释义

例句

1.A higher frequency-modulation index 频率调制指数 results in a wider bandwidth for the transmitted signal.

更高的频率调制指数会导致传输信号的带宽更宽。

2.The frequency-modulation index 频率调制指数 determines the amount of modulation applied to the carrier wave.

频率调制指数决定了施加在载波上的调制量。

3.In radio communications, adjusting the frequency-modulation index 频率调制指数 can improve signal clarity.

在无线通信中，调整频率调制指数可以提高信号清晰度。

4.The frequency-modulation index 频率调制指数 is crucial for determining the fidelity of the transmitted audio.

频率调制指数对于确定传输音频的保真度至关重要。

5.Engineers must calculate the frequency-modulation index 频率调制指数 when designing FM transmitters.

工程师在设计FM发射器时必须计算频率调制指数。

作文

The concept of frequency-modulation index is fundamental in the field of communication systems, particularly in the study of frequency modulation (FM). Frequency modulation is a technique used to encode information in a carrier wave by varying its frequency. The frequency-modulation index plays a crucial role in determining the characteristics of the modulated signal and its performance in transmitting information. In essence, the frequency-modulation index is defined as the ratio of the frequency deviation of the carrier wave to the modulating frequency. This means that it quantifies how much the frequency of the carrier wave is altered by the input signal. A higher frequency-modulation index indicates a greater deviation, which can lead to a wider bandwidth of the transmitted signal.Understanding the implications of the frequency-modulation index is essential for engineers and technicians working in telecommunications. When designing communication systems, one must consider how the frequency-modulation index affects both the quality and the range of the signal. For instance, a large frequency-modulation index can improve the signal-to-noise ratio, making it easier for receivers to distinguish the intended signal from background noise. However, this also requires more bandwidth, which can be a limiting factor in certain applications.In practical applications, the frequency-modulation index is also related to the type of information being transmitted. For example, audio signals, which typically have a lower frequency, may require a different frequency-modulation index compared to high-frequency data signals. This differentiation is crucial in ensuring that the transmission remains clear and effective.Moreover, the frequency-modulation index is not just a theoretical concept; it has real-world implications in various technologies. For example, FM radio broadcasting relies heavily on the principles of frequency modulation and the frequency-modulation index. The quality of sound that listeners experience is directly influenced by how well the broadcasting system manages this index. Similarly, in radar and sonar systems, the frequency-modulation index is used to enhance detection capabilities, allowing for better target identification and tracking.In conclusion, the frequency-modulation index is a vital parameter in the realm of frequency modulation. Its understanding is crucial for the effective design and implementation of communication systems. As technology continues to advance, the role of the frequency-modulation index will remain significant, influencing everything from radio broadcasts to complex data transmission systems. Thus, mastering this concept is essential for anyone involved in the field of communications engineering.

频率调制指数（frequency-modulation index）的概念在通信系统领域中是基础，特别是在研究频率调制（FM）时。频率调制是一种通过改变载波波的频率来编码信息的技术。frequency-modulation index在确定调制信号的特性及其在信息传输中的性能方面起着至关重要的作用。简而言之，frequency-modulation index被定义为载波波频率偏移与调制频率的比率。这意味着它量化了输入信号对载波波频率的影响程度。更高的frequency-modulation index表示更大的偏移，这可能导致传输信号的带宽更宽。理解frequency-modulation index的含义对于在电信领域工作的工程师和技术人员至关重要。在设计通信系统时，必须考虑frequency-modulation index如何影响信号的质量和范围。例如，较大的frequency-modulation index可以提高信噪比，使接收器更容易区分预期信号与背景噪声。然而，这也需要更多的带宽，这在某些应用中可能是一个限制因素。在实际应用中，frequency-modulation index还与传输的信息类型有关。例如，音频信号通常具有较低的频率，可能需要与高频数据信号不同的frequency-modulation index。这种区分对于确保传输保持清晰有效至关重要。此外，frequency-modulation index不仅仅是一个理论概念；它在各种技术中有着现实的影响。例如，FM广播依赖于频率调制的原理和frequency-modulation index。听众所体验的声音质量直接受到广播系统如何管理这一指数的影响。类似地，在雷达和声纳系统中，frequency-modulation index被用来增强探测能力，从而更好地识别和跟踪目标。总之，frequency-modulation index是频率调制领域中的一个重要参数。理解它对于有效设计和实施通信系统至关重要。随着技术的不断进步，frequency-modulation index的作用将继续显著影响从广播到复杂数据传输系统的一切。因此，掌握这一概念对于任何参与通信工程领域的人来说都是必不可少的。