modulation demodulator

简明释义

调制解调器

英英释义

例句

1.In telecommunications, a modulation demodulator is essential for transmitting data over long distances.

在电信中，调制解调器对于远距离传输数据至关重要。

2.The modulation demodulator allows us to receive clearer audio signals on our devices.

该调制解调器使我们能够在设备上接收到更清晰的音频信号。

3.Engineers often test the modulation demodulator to ensure optimal performance in communication systems.

工程师们经常测试调制解调器以确保通信系统的最佳性能。

4.A digital modulation demodulator is used in modern internet connections for faster data transfer.

现代互联网连接中使用数字调制解调器以实现更快的数据传输。

5.The radio station uses a modulation demodulator to convert sound waves into radio signals.

广播电台使用调制解调器将声波转换为无线电信号。

作文

In the realm of telecommunications, the concepts of modulation and demodulation are fundamental to the transmission and reception of signals. At the heart of these processes lies the term modulation demodulator, which refers to a device or system that performs both functions: modulating an incoming signal for transmission and demodulating the received signal for interpretation. Understanding the role of a modulation demodulator is crucial for anyone interested in the field of communication technology.Modulation is the technique used to encode information onto a carrier wave, allowing it to be transmitted over long distances without significant loss of quality. This process involves varying certain properties of the carrier wave, such as its amplitude, frequency, or phase, to represent the data being sent. For instance, in amplitude modulation (AM), the amplitude of the carrier wave is varied in accordance with the information signal. On the other hand, frequency modulation (FM) changes the frequency of the carrier wave. The choice of modulation technique can greatly affect the efficiency and quality of the signal being transmitted.Once the modulated signal reaches its destination, it must be demodulated to retrieve the original information. This is where the modulation demodulator comes into play. A modulation demodulator takes the modulated signal and reverses the modulation process, extracting the original information from the carrier wave. This is essential for devices like radios and televisions, where the user expects to receive clear audio or video signals.The design of a modulation demodulator can vary depending on the type of modulation used. For example, a simple AM radio receiver typically includes an AM demodulator that can efficiently convert the incoming AM signal back into audio. In contrast, more complex systems, such as digital communication networks, may utilize sophisticated modulation demodulators capable of handling various modulation schemes, including quadrature amplitude modulation (QAM) and phase shift keying (PSK).The importance of modulation demodulators cannot be overstated in modern communication systems. They enable the seamless transfer of information across vast distances, making technologies like mobile phones, satellite communications, and the internet possible. As technology continues to evolve, so too does the need for advanced modulation demodulators that can handle higher data rates and more complex modulation techniques.In conclusion, the modulation demodulator is a vital component of any communication system, bridging the gap between the transmission of information and its reception. By understanding how modulation demodulators function, we can appreciate the intricate processes that allow us to communicate effectively in our increasingly connected world. Whether it’s through traditional radio waves or cutting-edge digital signals, the role of the modulation demodulator remains integral to the way we share information today.

在电信领域，调制和解调的概念是信号传输和接收的基础。在这些过程中，一个重要的术语是调制解调器，它指的是执行这两项功能的设备或系统：对传入信号进行调制以便传输，以及对接收到的信号进行解调以便解释。理解调制解调器的作用对于任何对通信技术感兴趣的人来说都是至关重要的。调制是一种将信息编码到载波上的技术，使其能够在长距离内传输而不会显著损失质量。这个过程涉及到改变载波的某些属性，例如其幅度、频率或相位，以表示所发送的数据。例如，在幅度调制（AM）中，载波的幅度根据信息信号变化。另一方面，频率调制（FM）则改变载波的频率。调制技术的选择会极大影响所传输信号的效率和质量。一旦调制信号到达目的地，就必须进行解调以恢复原始信息。这就是调制解调器发挥作用的地方。调制解调器将调制信号进行反向调制处理，从载波中提取出原始信息。这对于收音机和电视等设备至关重要，因为用户期望接收到清晰的音频或视频信号。调制解调器的设计可能因所使用的调制类型而异。例如，简单的AM收音机接收器通常包括一个AM解调器，可以有效地将输入的AM信号转换回音频。相比之下，更复杂的系统，如数字通信网络，可能利用复杂的调制解调器，能够处理各种调制方案，包括正交振幅调制（QAM）和相位偏移键控（PSK）。在现代通信系统中，调制解调器的重要性不容小觑。它们使得信息能够在广阔的距离之间无缝传输，使得移动电话、卫星通信和互联网等技术成为可能。随着技术的不断发展，对先进的调制解调器的需求也在增加，这些解调器能够处理更高的数据速率和更复杂的调制技术。总之，调制解调器是任何通信系统的重要组成部分，架起了信息传输与接收之间的桥梁。通过理解调制解调器的功能，我们可以更好地欣赏到让我们在日益互联的世界中有效沟通的复杂过程。无论是通过传统的无线电波还是最前沿的数字信号，调制解调器的角色在我们今天分享信息的方式中仍然是不可或缺的。