amplitude modulated transmitter

简明释义

爹发射机

英英释义

例句

1.The amplitude modulated transmitter allows for clearer sound quality compared to other modulation methods.

调幅发射器相比其他调制方式提供了更清晰的音质。

2.An amplitude modulated transmitter is essential for transmitting information over long distances.

调幅发射器对于远距离传输信息至关重要。

3.Many older radios still rely on an amplitude modulated transmitter for AM broadcasts.

许多老式收音机仍然依赖于调幅发射器进行AM广播。

4.The radio station uses an amplitude modulated transmitter to broadcast its signal across the city.

这家电台使用调幅发射器在整个城市广播信号。

5.During the test, the engineers monitored the performance of the amplitude modulated transmitter closely.

在测试期间，工程师们密切监控调幅发射器的性能。

作文

In the world of telecommunications, the term amplitude modulated transmitter refers to a device that encodes information onto a carrier wave by varying its amplitude. This method of modulation has been widely used in radio broadcasting since the early 20th century. Understanding how an amplitude modulated transmitter works is essential for anyone interested in the field of electronics and communication technology.The basic principle behind an amplitude modulated transmitter is relatively simple. It involves combining a low-frequency signal, which carries the information (such as audio or data), with a high-frequency carrier wave. The carrier wave is typically a sine wave, and its frequency is much higher than that of the information signal. By varying the amplitude of the carrier wave in accordance with the information signal, the amplitude modulated transmitter effectively encodes the information for transmission.One of the key advantages of using an amplitude modulated transmitter is its simplicity. The technology required to create such transmitters is straightforward and cost-effective, making it accessible for various applications. For instance, AM radio stations utilize this technology to broadcast music, news, and talk shows to a wide audience. The range of an amplitude modulated transmitter can be quite extensive, allowing signals to travel long distances, especially during nighttime when atmospheric conditions are favorable for AM signals.However, there are also limitations associated with amplitude modulated transmitters. One significant drawback is their susceptibility to noise and interference. Since the amplitude of the carrier wave is altered to convey information, any variations in amplitude caused by external factors, such as electrical equipment or atmospheric conditions, can distort the transmitted signal. This results in a loss of audio quality, which is particularly noticeable in music broadcasts.Despite these challenges, the amplitude modulated transmitter remains a vital part of communication systems. It serves as a foundation for more advanced modulation techniques, such as frequency modulation (FM) and digital modulation methods. Furthermore, the principles of AM transmission continue to be relevant in various modern technologies, including television broadcasting and two-way radios.In conclusion, the amplitude modulated transmitter plays a crucial role in the history and development of communication technology. Its ability to encode information through amplitude variation has paved the way for numerous advancements in the field. As we continue to explore new communication methods, understanding the fundamentals of amplitude modulated transmitters will remain important for engineers and enthusiasts alike. Whether it is for nostalgic reasons or practical applications, the legacy of amplitude modulated transmitters will undoubtedly endure in the ever-evolving landscape of telecommunications.

在电信领域，术语幅度调制发射器指的是一种设备，通过改变载波的幅度来将信息编码到载波波上。这种调制方法自20世纪初以来被广泛用于广播。理解幅度调制发射器的工作原理对于任何对电子和通信技术感兴趣的人来说都是至关重要的。幅度调制发射器的基本原理相对简单。它涉及将一个低频信号（承载信息，如音频或数据）与一个高频载波波结合在一起。载波波通常是正弦波，其频率远高于信息信号的频率。通过根据信息信号变化载波波的幅度，幅度调制发射器有效地将信息编码以便传输。使用幅度调制发射器的一个主要优点是其简单性。制造这种发射器所需的技术相对简单且成本效益高，使其适用于各种应用。例如，AM广播电台利用该技术向广大听众广播音乐、新闻和脱口秀。幅度调制发射器的范围可以相当广泛，允许信号在长距离内传播，尤其是在夜间，当大气条件有利于AM信号时。然而，幅度调制发射器也存在一些局限性。其中一个显著缺点是它们容易受到噪声和干扰的影响。由于载波波的幅度会因外部因素（如电气设备或大气条件）而变化，因此任何导致幅度变化的因素都可能扭曲传输信号。这会导致音频质量下降，在音乐广播中尤为明显。尽管面临这些挑战，幅度调制发射器仍然在通信系统中发挥着重要作用。它为更先进的调制技术（如频率调制（FM）和数字调制方法）奠定了基础。此外，AM传输的原理在现代技术中继续相关，包括电视广播和双向无线电。总之，幅度调制发射器在通信技术的历史和发展中扮演着关键角色。通过幅度变化编码信息的能力为该领域的众多进步铺平了道路。随着我们继续探索新的通信方法，理解幅度调制发射器的基础知识将对工程师和爱好者而言仍然重要。无论是出于怀旧原因还是实际应用，幅度调制发射器的遗产无疑将在不断发展的电信领域中持续存在。