amplitude modulated transmitter

简明释义

调幅发射机

英英释义

例句

1.We learned about the history and development of the amplitude modulated transmitter in our communications class.

在我们的通信课上，我们学习了调幅发射器的历史和发展。

2.The amplitude modulated transmitter operates by varying the amplitude of the carrier wave.

该调幅发射器通过改变载波波的幅度来工作。

3.During the experiment, we tested the efficiency of the amplitude modulated transmitter under various conditions.

在实验中，我们测试了不同条件下调幅发射器的效率。

4.The engineer designed an amplitude modulated transmitter to improve the radio signal quality.

工程师设计了一个调幅发射器以提高无线电信号质量。

5.An amplitude modulated transmitter can be used for broadcasting music over long distances.

一个调幅发射器可以用于在长距离内广播音乐。

作文

In the world of communication technology, the term amplitude modulated transmitter plays a pivotal role in the transmission of audio signals over long distances. To understand this concept better, we must first break it down into its components: amplitude modulation and transmitter. Amplitude modulation (AM) is a technique used to encode information in a carrier wave by varying its amplitude. This means that the strength or intensity of the signal is changed according to the information being sent, such as music or voice. The amplitude modulated transmitter is the device responsible for generating this modulated signal and broadcasting it to receivers. The fundamental principle behind an amplitude modulated transmitter is relatively straightforward. It starts with a carrier wave, which is a steady waveform at a specific frequency. This carrier wave is then combined with the audio signal that needs to be transmitted. The result is a modulated signal where the amplitude fluctuates in accordance with the audio input. For instance, when someone speaks into a microphone connected to the transmitter, the sound waves from their voice cause the amplitude of the carrier wave to change, encoding the speech into the signal. One of the key advantages of using an amplitude modulated transmitter is its simplicity and effectiveness over large distances. AM signals can travel farther than many other types of modulation because they can reflect off the ionosphere, allowing them to reach distant receivers. This property makes AM radio a popular choice for broadcasting news, music, and emergency information. However, AM does have its drawbacks, including susceptibility to noise and interference, which can degrade the quality of the audio signal. Despite the rise of digital technologies and more advanced modulation techniques, the amplitude modulated transmitter remains relevant today, especially in the realm of traditional radio broadcasting. Many AM radio stations continue to operate, providing a vital service to communities, particularly in rural areas where other forms of communication may be less accessible. The robust nature of AM signals allows them to penetrate buildings and travel long distances, making them reliable for reaching a wide audience. In conclusion, the amplitude modulated transmitter is an essential component of the communication landscape. By understanding how it works, we can appreciate the ingenuity behind this technology that has been in use for over a century. As we move forward into an increasingly digital age, it is crucial to recognize the foundational technologies that paved the way for modern communication systems. The legacy of the amplitude modulated transmitter serves as a reminder of the importance of innovation and adaptation in the ever-evolving field of technology.

在通信技术的世界中，短语幅度调制发射器在音频信号远距离传输中扮演着关键角色。要更好地理解这个概念，我们首先必须将其分解为两个组成部分：幅度调制和发射器。幅度调制（AM）是一种通过改变载波波形的幅度来编码信息的技术。这意味着信号的强度或强度会根据所发送的信息而变化，例如音乐或声音。幅度调制发射器是负责生成这种调制信号并将其广播到接收器的设备。幅度调制发射器的基本原理相对简单。它以一个载波波形开始，载波波形是在特定频率下的稳定波形。然后，这个载波波形与需要传输的音频信号结合在一起。结果是一个调制信号，其幅度根据音频输入而波动。例如，当某人对着连接到发射器的麦克风说话时，他们声音中的声波使载波波形的幅度发生变化，从而将语音编码到信号中。使用幅度调制发射器的一个主要优势是其简单性和在长距离上的有效性。由于AM信号可以反射到电离层，使其能够到达遥远的接收器，因此它们可以传输比许多其他类型的调制信号更远的距离。这一特性使得AM广播成为传播新闻、音乐和紧急信息的热门选择。然而，AM也有其缺点，包括对噪声和干扰的敏感性，这可能会降低音频信号的质量。尽管数字技术和更先进的调制技术日益兴起，幅度调制发射器在传统广播领域仍然保持着相关性。许多AM电台继续运营，为社区提供重要服务，尤其是在偏远地区，其他形式的通信可能不太可及。AM信号的强大特性使其能够穿透建筑物并传播长距离，从而可靠地覆盖广泛的受众。总之，幅度调制发射器是通信领域的重要组成部分。通过理解其工作原理，我们可以欣赏这种已经使用了一个多世纪的技术背后的聪明才智。随着我们进入一个日益数字化的时代，认识到奠定现代通信系统基础的技术至关重要。幅度调制发射器的遗产提醒我们，在不断发展的技术领域中，创新和适应的重要性。