phase modulation system

简明释义

调相制

英英释义

A phase modulation system is a communication system that encodes information by varying the phase of a carrier wave in accordance with the amplitude of the input signal.

相位调制系统是一种通信系统,通过根据输入信号的幅度变化载波波的相位来编码信息。

例句

1.The phase modulation system allows for more efficient use of bandwidth compared to amplitude modulation.

相位调制系统相比于幅度调制,允许更高效地利用带宽。

2.Engineers often choose a phase modulation system for applications requiring high data rates.

工程师通常选择相位调制系统用于需要高数据速率的应用。

3.In telecommunications, a phase modulation system is used to encode information in the phase of a carrier wave.

在电信中,相位调制系统用于通过载波波的相位编码信息。

4.In digital communication, a phase modulation system can improve signal integrity over long distances.

在数字通信中,相位调制系统可以提高长距离传输的信号完整性。

5.The phase modulation system is crucial in modern radar technology for accurate target detection.

相位调制系统在现代雷达技术中对于准确目标检测至关重要。

作文

In the realm of telecommunications, the effectiveness of data transmission is paramount. One of the most significant advancements in this area is the development of the phase modulation system (相位调制系统). This technology plays a crucial role in how signals are encoded and transmitted over various mediums, including wireless communication, satellite systems, and fiber optics.The phase modulation system is based on the principle of varying the phase of a carrier wave to convey information. Unlike amplitude modulation, which changes the strength of the signal, or frequency modulation, which alters the frequency, phase modulation focuses on changing the phase angle of the wave. This method allows for more efficient use of bandwidth, making it particularly advantageous in crowded frequency environments.One of the key benefits of a phase modulation system is its resilience to noise. In many communication scenarios, interference can corrupt signals, leading to data loss or degradation in quality. However, because phase modulation encodes information in the phase of the wave, it can maintain integrity even when subjected to various types of noise. This characteristic makes it ideal for applications where signal clarity is critical, such as in digital data transmission and audio broadcasting.Moreover, the phase modulation system is integral to modern digital communication techniques. For instance, Quadrature Phase Shift Keying (QPSK) and Differential Phase Shift Keying (DPSK) are two popular methods that utilize phase modulation to encode data efficiently. These techniques allow multiple bits of information to be transmitted simultaneously, significantly increasing data rates without requiring additional bandwidth.As technology continues to evolve, the importance of the phase modulation system cannot be overstated. With the rise of the Internet of Things (IoT) and the demand for faster, more reliable communication networks, the ability to transmit large amounts of data quickly and accurately is essential. Phase modulation provides a solution to these challenges, offering a robust framework for future developments in wireless communication.In conclusion, the phase modulation system represents a pivotal innovation in the field of telecommunications. Its ability to encode information efficiently while resisting interference makes it an invaluable tool for modern communication systems. As we move forward into an increasingly connected world, understanding and utilizing technologies like the phase modulation system will be crucial for achieving high-quality data transmission and ensuring that our communication networks can meet the demands of the future.

在电信领域,数据传输的有效性至关重要。在这一领域,最重要的进展之一是相位调制系统的开发。这项技术在信号的编码和通过各种媒介的传输中发挥着至关重要的作用,包括无线通信、卫星系统和光纤。相位调制系统基于改变载波波的相位来传递信息的原理。与改变信号强度的幅度调制不同,或改变频率的频率调制,相位调制侧重于改变波的相位角。这种方法允许更有效地使用带宽,使其在拥挤的频率环境中尤其具有优势。相位调制系统的一个关键好处是其对噪声的抵抗力。在许多通信场景中,干扰可能会破坏信号,导致数据丢失或质量下降。然而,由于相位调制将信息编码在波的相位中,即使在各种噪声下也能保持完整性。这一特性使其成为信号清晰度至关重要的应用的理想选择,例如数字数据传输和音频广播。此外,相位调制系统是现代数字通信技术的核心。例如,正交相移键控(QPSK)和微分相移键控(DPSK)是两种利用相位调制高效编码数据的流行方法。这些技术允许同时传输多个比特的信息,显著提高数据速率,而不需要额外的带宽。随着技术的不断发展,相位调制系统的重要性不可低估。随着物联网(IoT)的兴起和对更快、更可靠的通信网络的需求,快速准确地传输大量数据的能力至关重要。相位调制为这些挑战提供了解决方案,为未来无线通信的发展提供了坚实的框架。总之,相位调制系统代表了电信领域的一个关键创新。其高效编码信息并抵御干扰的能力使其成为现代通信系统的重要工具。随着我们进入一个日益互联的世界,理解和利用像相位调制系统这样的技术对于实现高质量的数据传输和确保我们的通信网络能够满足未来的需求至关重要。

相关单词

phase

phase详解:怎么读、什么意思、用法

modulation

modulation详解:怎么读、什么意思、用法