angle modulation

简明释义

角灯

英英释义

例句

1.The process of angle modulation can significantly reduce noise in communication systems.

在通信系统中，角度调制的过程可以显著降低噪声。

2.One common application of angle modulation is in two-way radio communication.

一个常见的角度调制应用是在双向无线电通信中。

3.Understanding angle modulation is essential for engineers working in signal processing.

理解角度调制对于从事信号处理的工程师来说至关重要。

4.FM radio broadcasting employs angle modulation to transmit high-fidelity audio signals.

FM广播使用角度调制来传输高保真音频信号。

5.In telecommunications, angle modulation is used to encode information in a carrier wave.

在电信中，角度调制用于在载波中编码信息。

作文

In modern communication systems, the transmission of information over various media is a fundamental aspect that determines the efficiency and clarity of the message being conveyed. One of the key techniques employed in this field is known as angle modulation, which plays a crucial role in shaping how signals are transmitted and received. To fully grasp the concept of angle modulation (角调制), it is essential to explore its definition, applications, and advantages compared to other modulation techniques.Angle modulation refers to a method of varying the angle of a carrier wave in order to encode information. This can be achieved through two primary forms: frequency modulation (FM) and phase modulation (PM). In frequency modulation, the frequency of the carrier wave is altered in accordance with the amplitude of the input signal. Conversely, in phase modulation, the phase of the carrier wave is changed based on the input signal's instantaneous amplitude. Both methods effectively convey information by altering the characteristics of the carrier wave, allowing for a more efficient transmission of data.The applications of angle modulation are vast and varied. One of the most notable uses is in FM radio broadcasting, where audio signals are transmitted over long distances with minimal interference. The inherent noise resistance of FM makes it an ideal choice for radio communications, ensuring that listeners receive clear audio without significant degradation of quality. Furthermore, angle modulation is also utilized in television broadcasting, satellite communications, and even in mobile phone networks, highlighting its versatility and effectiveness in different communication scenarios.One of the primary advantages of angle modulation over other modulation techniques, such as amplitude modulation (AM), is its superior noise immunity. AM signals are more susceptible to noise and interference, which can lead to a significant loss of signal quality. In contrast, angle modulation techniques, particularly FM, provide a higher signal-to-noise ratio, ensuring that the transmitted information remains intact even in challenging conditions. This robustness makes angle modulation particularly valuable in environments where signal degradation is likely to occur, such as urban areas with high electromagnetic interference.Moreover, angle modulation allows for a more efficient use of bandwidth. By utilizing the available spectrum more effectively, communication systems can support a greater number of channels and higher data rates. This is particularly important in today's world, where the demand for wireless communication continues to grow exponentially. As more devices become interconnected, the ability to transmit large amounts of data quickly and reliably becomes paramount.In conclusion, angle modulation (角调制) is a vital technique in the realm of communication systems, offering numerous benefits that enhance the transmission of information. Its ability to provide noise immunity, efficient bandwidth usage, and adaptability to various applications makes it an indispensable tool in modern technology. As we continue to advance in our communication capabilities, understanding and mastering techniques like angle modulation will be essential for engineers and professionals in the field. The future of communication relies heavily on these foundational concepts, making it imperative for us to appreciate their significance and potential impact on society.

在现代通信系统中，通过各种媒介传输信息是决定信息传递效率和清晰度的基本方面。一个关键的技术就是我们所称的角调制，它在塑造信号的传输和接收方式中起着至关重要的作用。要全面理解角调制（angle modulation）的概念，有必要探讨其定义、应用及其与其他调制技术相比的优势。角调制是指通过改变载波波的角度来编码信息的一种方法。这可以通过两种主要形式实现：频率调制（FM）和相位调制（PM）。在频率调制中，载波波的频率根据输入信号的幅度而变化。相反，在相位调制中，载波波的相位根据输入信号的瞬时幅度而变化。这两种方法通过改变载波波的特性有效地传达信息，从而实现更高效的数据传输。角调制的应用广泛而多样。其中最显著的用途之一是在FM广播中，音频信号能够在长距离内以最小的干扰进行传输。FM固有的抗噪声能力使其成为无线电通信的理想选择，确保听众接收到清晰的音频，而不会显著降低质量。此外，角调制还被用于电视广播、卫星通信，甚至移动电话网络，突显了其在不同通信场景中的多功能性和有效性。角调制相较于其他调制技术（如幅度调制AM）的主要优势之一是其优越的抗噪声能力。AM信号更容易受到噪声和干扰的影响，这可能导致信号质量显著下降。相比之下，角调制技术，尤其是FM，提供了更高的信噪比，确保即使在恶劣条件下，传输的信息也能保持完整。这种鲁棒性使得角调制在信号退化可能发生的环境中尤为有价值，例如高电磁干扰的城市地区。此外，角调制还允许更有效地利用带宽。通过更有效地利用可用频谱，通信系统可以支持更多的频道和更高的数据传输速率。这在当今世界中尤为重要，因为对无线通信的需求正在迅速增长。随着越来越多的设备互联互通，快速可靠地传输大量数据的能力变得至关重要。总之，角调制（angle modulation）是通信系统领域中的一种重要技术，提供了众多增强信息传输的好处。其提供的抗噪声能力、高效的带宽使用和适应各种应用的能力，使其成为现代技术中不可或缺的工具。随着我们在通信能力上的不断进步，理解和掌握像角调制这样的技术将对工程师和专业人士至关重要。通信的未来在很大程度上依赖于这些基础概念，因此我们必须重视它们的重要性和对社会的潜在影响。