single side band

简明释义

单边带

英英释义

例句

1.The fisherman used a single side band radio to communicate with his team while out at sea.

渔民在海上与团队沟通时使用了单边带无线电。

2.Using single side band allows for more efficient use of bandwidth in communications.

使用单边带可以更有效地利用通讯带宽。

3.During the storm, the emergency services relied on single side band radios for reliable communication.

在暴风雨期间，紧急服务依赖于单边带无线电进行可靠通信。

4.In amateur radio, many prefer single side band over amplitude modulation for better performance.

在业余无线电中，许多人更喜欢单边带而不是幅度调制，以获得更好的性能。

5.The radio operator switched to single side band to improve the clarity of the transmission.

无线电操作员切换到单边带以提高传输的清晰度。

作文

In the world of radio communications, various methods exist to transmit and receive signals effectively. One such method is known as single side band, which is a refinement of amplitude modulation (AM). The single side band technique allows for more efficient use of bandwidth and provides clearer audio quality compared to traditional AM broadcasting. This is particularly important in long-distance communication, where clarity can significantly affect the understanding of transmitted information.The basic concept behind single side band involves the transmission of only one side of the carrier wave, either the upper or lower side band, while eliminating the carrier itself. In conventional AM, both the upper and lower side bands are transmitted along with the carrier frequency, which takes up a significant amount of bandwidth. However, by using single side band, operators can reduce the bandwidth required for transmission by approximately half. This efficiency is crucial for amateur radio operators and commercial broadcasters alike, as it allows them to communicate over greater distances without the need for excessive power or bandwidth.One of the primary advantages of single side band is its ability to reduce interference. In crowded radio environments, where multiple signals may overlap, single side band transmissions can stand out more clearly. This is because the elimination of the carrier wave reduces the overall power of the signal, allowing for a more focused transmission that can be picked up even in noisy conditions. As a result, many radio enthusiasts prefer single side band for its superior performance in challenging environments.Moreover, the use of single side band is not limited to amateur radio. It is widely used in maritime and aviation communications, where clear and reliable communication is essential. For example, pilots rely on single side band technology to communicate with air traffic control, ensuring that their messages are transmitted accurately and without distortion. Similarly, ships at sea utilize single side band for long-range communication, allowing them to stay connected even when they are far from shore.Despite its many benefits, single side band does come with a learning curve. Operators must become familiar with the equipment and techniques necessary to effectively use this method of transmission. Tuning in to a single side band signal requires a different approach than traditional AM or FM signals, as operators must adjust their receivers to isolate the desired side band. This can be challenging for newcomers, but with practice, many find that the improved audio quality and range are well worth the effort.In conclusion, single side band is a vital component of modern radio communication. Its ability to efficiently utilize bandwidth, reduce interference, and provide clear audio makes it an essential tool for both amateur and professional operators. As technology continues to evolve, the importance of single side band in facilitating effective communication will only grow, ensuring that people can stay connected across vast distances. Understanding and mastering single side band can open up new possibilities for anyone interested in the world of radio communications.

在无线电通信的世界中，存在多种有效传输和接收信号的方法。其中一种方法被称为单边带，它是幅度调制（AM）的改进版。单边带技术允许比传统的AM广播更有效地使用带宽，并提供更清晰的音频质量。这在长距离通信中尤为重要，因为清晰度会显著影响传输信息的理解。单边带的基本概念涉及仅传输载波波的一侧，即上侧带或下侧带，同时消除载波本身。在传统的AM中，上侧带和下侧带以及载波频率都被传输，这占用了大量的带宽。然而，通过使用单边带，操作人员可以将传输所需的带宽减少约一半。这种效率对业余无线电操作员和商业广播商都是至关重要的，因为它使他们能够在不需要过多功率或带宽的情况下进行更远距离的通信。单边带的主要优点之一是其减少干扰的能力。在拥挤的无线电环境中，多个信号可能重叠，单边带传输可以更加清晰地脱颖而出。这是因为消除载波波减少了信号的整体功率，使得信号能够在嘈杂条件下被更集中地接收。因此，许多无线电爱好者更喜欢单边带，因为它在具有挑战性的环境中表现出色。此外，单边带的使用不仅限于业余无线电。它广泛应用于海洋和航空通信，在这些领域，清晰可靠的通信至关重要。例如，飞行员依赖单边带技术与空中交通管制进行通信，确保他们的消息准确无误且没有失真。同样，海上的船只利用单边带进行远程通信，使它们即使远离海岸也能保持联系。尽管有许多好处，单边带确实存在学习曲线。操作人员必须熟悉有效使用这种传输方法所需的设备和技术。调谐到单边带信号需要不同于传统AM或FM信号的方法，因为操作人员必须调整接收器以隔离所需的侧带。这对新手来说可能具有挑战性，但通过实践，许多人发现提高的音频质量和范围绝对值得付出努力。总之，单边带是现代无线电通信的重要组成部分。它高效利用带宽、减少干扰和提供清晰音频的能力使其成为业余和专业操作人员的必备工具。随着技术的不断发展，单边带在促进有效沟通方面的重要性只会增加，确保人们能够在广阔的距离中保持联系。理解和掌握单边带可以为任何对无线电通信世界感兴趣的人打开新的可能性。