single sideband transmitter

简明释义

单边带发射机

英英释义

例句

1.The single sideband transmitter allows for clearer audio quality compared to traditional AM transmitters.

与传统的调幅发射机相比，单边带发射机提供了更清晰的音频质量。

2.The amateur radio operator used a single sideband transmitter to communicate over long distances.

业余无线电操作员使用了一个单边带发射机进行远距离通信。

3.During the emergency drill, the team relied on a single sideband transmitter for reliable communication.

在应急演习中，团队依靠单边带发射机进行可靠的通信。

4.The technician repaired the single sideband transmitter to ensure it was functioning properly.

技术员修理了单边带发射机以确保其正常运作。

5.Sailors often use a single sideband transmitter to stay in touch with coastal stations.

水手们常常使用单边带发射机与沿海站保持联系。

作文

In the world of radio communications, the efficiency and clarity of transmitted signals are paramount. One of the key technologies that enhance these aspects is the single sideband transmitter. This type of transmitter is widely used in various applications, including amateur radio, aviation, and maritime communications. Understanding how a single sideband transmitter works can provide valuable insights into modern communication systems.A single sideband transmitter operates by modulating a carrier wave to encode information. Unlike traditional amplitude modulation (AM), which transmits both the upper and lower sidebands along with the carrier signal, a single sideband transmitter eliminates the carrier and one of the sidebands. This results in a more efficient use of bandwidth and power. By doing so, it allows for clearer transmission over long distances, making it a preferred choice for many operators.The basic principle behind a single sideband transmitter involves the modulation of audio signals onto a radio frequency carrier. When a voice or music signal is fed into the transmitter, it modulates the carrier wave in such a way that only one sideband is produced. This is achieved through a process called filtering, where the unwanted sideband and the carrier are removed. The result is a signal that occupies less bandwidth, which is particularly advantageous in crowded frequency bands.One of the significant benefits of using a single sideband transmitter is its superior range compared to conventional AM transmitters. Because it transmits less power while still maintaining clarity, operators can communicate over greater distances without the need for excessive power consumption. This makes it especially useful in situations where power resources are limited, such as in emergency communications or remote operations.Moreover, the single sideband transmitter is less susceptible to noise and interference, which is a common issue in radio communications. The elimination of the carrier signal means that there is less energy wasted on transmitting unnecessary information, allowing the receiver to focus on the desired signal. This results in clearer audio quality and improved reception, even in challenging conditions.Another important aspect of the single sideband transmitter is its versatility. It can be used for voice communications as well as data transmission, making it suitable for various applications. In the realm of amateur radio, for instance, operators often prefer SSB (single sideband) modes for their ability to communicate effectively over long distances. Similarly, in aviation, pilots utilize single sideband transmitters for air traffic control communications, ensuring that their messages are transmitted clearly and efficiently.In conclusion, the single sideband transmitter represents a significant advancement in radio communication technology. By eliminating the carrier and one sideband, it provides efficient, clear, and reliable communication over long distances. Its advantages in terms of power consumption, range, and resistance to interference make it an essential tool for various fields, including amateur radio, aviation, and maritime operations. As technology continues to evolve, the role of the single sideband transmitter will likely expand, further enhancing our ability to communicate effectively in an increasingly connected world.

在无线电通信的世界中，传输信号的效率和清晰度至关重要。增强这些方面的关键技术之一是单边带发射机。这种类型的发射机广泛应用于业余无线电、航空和海事通信等各种应用中。了解单边带发射机的工作原理可以为现代通信系统提供宝贵的见解。单边带发射机通过调制载波波形来编码信息。与传统的幅度调制（AM）不同，后者同时传输上下边带和载波信号，单边带发射机则消除了载波和一个边带。这导致了对带宽和功率的更有效利用。这样，它允许在长距离上进行更清晰的传输，使其成为许多操作员的首选。单边带发射机的基本原理涉及将音频信号调制到无线电频率载波上。当语音或音乐信号输入发射机时，它以某种方式调制载波波形，以产生仅一个边带。这是通过一种称为过滤的过程来实现的，在该过程中去除了不需要的边带和载波。结果是一个占用更少带宽的信号，这在拥挤的频率带中尤其有利。使用单边带发射机的一个显著好处是其相比传统AM发射机的优越范围。因为它在保持清晰度的同时传输较少的功率，操作员可以在不需要过多功率消耗的情况下进行更远距离的通信。这使得它在电力资源有限的情况下尤其有用，例如在紧急通信或远程操作中。此外，单边带发射机对噪声和干扰的抵抗力较强，这是无线电通信中的常见问题。消除载波信号意味着在传输不必要信息上浪费的能量更少，从而使接收器能够集中精力接收所需信号。这导致了更清晰的音频质量和在复杂条件下的改善接收。单边带发射机的另一个重要方面是其多功能性。它可以用于语音通信以及数据传输，使其适用于各种应用。在业余无线电领域，例如，操作员通常更喜欢SSB（单边带）模式，因为它们能够有效地进行远距离通信。同样，在航空中，飞行员利用单边带发射机进行空中交通管制通信，确保他们的信息被清晰和高效地传输。总之，单边带发射机代表了无线电通信技术的重大进步。通过消除载波和一个边带，它提供了高效、清晰和可靠的长距离通信。在功耗、范围和抗干扰能力方面的优势使其成为业余无线电、航空和海事操作等多个领域的重要工具。随着技术的不断发展，单边带发射机的作用可能会进一步扩大，从而增强我们在日益互联的世界中有效沟通的能力。