angle modulation

简明释义

调角

英英释义

例句

1.Phase modulation is a type of angle modulation that changes the phase of the carrier signal.

相位调制是一种角度调制，它改变载波信号的相位。

2.Understanding angle modulation is crucial for engineers working with wireless technologies.

理解角度调制对从事无线技术的工程师至关重要。

3.The principle of angle modulation can be applied in various communication systems.

在各种通信系统中，可以应用角度调制的原理。

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

调频广播采用角度调制来传输高质量的音频信号。

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

在电信中，角度调制用于将信息编码到载波上。

作文

Angle modulation is a fundamental concept in the field of communications, particularly in the transmission of signals. It refers to the technique of varying the angle of a carrier wave in relation to the information signal being sent. This modulation method can be categorized mainly into two types: frequency modulation (FM) and phase modulation (PM). Both of these techniques utilize the principles of angle modulation (角度调制) to encode information into a carrier wave, allowing for more efficient transmission over various distances.In frequency modulation, the frequency of the carrier wave is varied in accordance with the amplitude of the input signal. For instance, when a higher amplitude signal is present, the frequency of the carrier wave increases, whereas a lower amplitude signal results in a decrease in frequency. This process effectively encodes the audio or data signals into the carrier wave, making it resistant to noise and interference during transmission. The resilience of FM to signal degradation is one of the reasons why it is widely used in radio broadcasting and other communication systems.Phase modulation, on the other hand, involves changing the phase of the carrier wave in response to the input signal. This method is particularly useful in digital communication systems, where data is transmitted in discrete packets. By altering the phase at specific intervals, information can be conveyed without the need for continuous changes in frequency. This aspect of angle modulation (角度调制) makes it highly effective for modern communication technologies, such as satellite and cellular communications.The advantages of angle modulation (角度调制) extend beyond just improved signal quality. For example, both FM and PM are less susceptible to amplitude noise compared to amplitude modulation (AM). This characteristic allows for clearer reception, especially in environments with significant electrical interference. Furthermore, angle modulation (角度调制) techniques can be implemented in various applications, including television broadcasting, two-way radio communications, and even in some forms of data transmission.However, the implementation of angle modulation (角度调制) is not without its challenges. One major concern is the bandwidth requirement. Both FM and PM require a wider bandwidth than AM, which can lead to spectrum congestion in densely populated areas. As a result, engineers must carefully consider the trade-offs between signal quality and bandwidth efficiency when designing communication systems.In conclusion, angle modulation (角度调制) plays a crucial role in modern communication technologies. Its ability to provide high-quality signal transmission while being resistant to noise makes it an essential technique in various applications. As technology continues to advance, understanding and mastering the principles of angle modulation (角度调制) will be vital for engineers and professionals in the field of telecommunications. By leveraging this knowledge, we can enhance the efficiency and reliability of our communication systems, paving the way for a more connected world.

角度调制是通信领域中的一个基本概念，特别是在信号传输中。它指的是根据所发送的信息信号的变化来调整载波波形的角度。这种调制方法主要可以分为两种类型：频率调制（FM）和相位调制（PM）。这两种技术都利用了角度调制（angle modulation）的原理，将信息编码到载波波形中，从而实现更高效的远距离传输。在频率调制中，载波波形的频率根据输入信号的幅度进行变化。例如，当存在较高幅度信号时，载波波形的频率增加，而较低幅度信号则导致频率降低。这个过程有效地将音频或数据信号编码到载波波形中，使其在传输过程中对噪声和干扰具有更强的抵抗力。FM对信号退化的抗干扰能力是其广泛应用于广播和其他通信系统的原因之一。另一方面，相位调制涉及根据输入信号改变载波波形的相位。这种方法在数字通信系统中特别有用，因为数据以离散的数据包形式传输。通过在特定间隔内改变相位，可以传达信息，而无需频率的连续变化。角度调制（angle modulation）的这一特性使其在现代通信技术中高度有效，例如卫星和蜂窝通信。角度调制（angle modulation）的优势不仅仅体现在信号质量的提高上。例如，FM和PM都比幅度调制（AM）对幅度噪声的抵抗力更强。这一特性使得接收更加清晰，尤其是在电气干扰显著的环境中。此外，角度调制（angle modulation）技术可以应用于各种应用场景，包括电视广播、双向无线电通信，甚至某些形式的数据传输。然而，角度调制（angle modulation）的实施并非没有挑战。一个主要问题是带宽需求。FM和PM所需的带宽比AM要宽，这可能导致在密集人口区域的频谱拥挤。因此，工程师在设计通信系统时必须仔细考虑信号质量和带宽效率之间的权衡。总之，角度调制（angle modulation）在现代通信技术中发挥着至关重要的作用。其提供高质量信号传输的能力，同时对噪声具有抵抗力，使其成为各种应用中的基本技术。随着技术的不断进步，理解和掌握角度调制（angle modulation）的原理对于电信领域的工程师和专业人士来说将至关重要。通过利用这些知识，我们可以提高通信系统的效率和可靠性，为更加互联的世界铺平道路。