upper sideband

简明释义

上边带

英英释义

例句

1.Using upper sideband mode can help reduce interference from other signals.

使用上边带模式可以帮助减少来自其他信号的干扰。

2.The radio operator tuned the transmitter to the upper sideband frequency for clearer communication.

无线电操作员将发射机调到上边带频率以获得更清晰的通信。

3.The upper sideband setting on the transceiver was essential for the contest.

收发器上的上边带设置对比赛至关重要。

4.The amateur radio enthusiast prefers upper sideband for its improved audio quality.

这位业余无线电爱好者更喜欢上边带，因为它的音质更好。

5.When operating on HF bands, many operators choose upper sideband to maximize their signal range.

在HF频段操作时，许多操作员选择上边带以最大化信号范围。

作文

In the field of radio communication, the term upper sideband refers to a specific method of modulation used to transmit signals. Modulation is a technique that alters the properties of a carrier wave in order to encode information. In amplitude modulation (AM), for instance, the amplitude of the carrier wave is varied in accordance with the information signal. However, there are more efficient ways to transmit signals, one of which is single sideband (SSB) modulation. Within this category, we find the upper sideband and lower sideband (LSB) techniques. The upper sideband is particularly important because it allows for the transmission of information using only the upper portion of the frequency spectrum associated with the carrier wave.The advantage of using upper sideband modulation lies in its efficiency. By eliminating the carrier wave and the lower sideband, radio operators can free up bandwidth and reduce power requirements. This is especially crucial in long-distance communications where clarity and signal strength are paramount. For example, amateur radio operators often utilize upper sideband when communicating over HF (high frequency) bands. This not only improves the quality of the transmission but also allows for more channels to be available for use.Moreover, the upper sideband is commonly employed in various applications beyond amateur radio. It is widely used in aviation communication, where pilots and air traffic controllers rely on clear and concise transmissions. The use of upper sideband ensures that important messages are transmitted without interference, thereby enhancing safety in aviation operations.Another significant application of upper sideband is in military communications. The ability to transmit clear signals over long distances without the need for excessive power makes upper sideband a preferred choice for military operations. This method of modulation helps maintain secure and reliable communication channels, which are critical in strategic operations.In addition to its practical applications, understanding the concept of upper sideband also offers insights into the evolution of communication technology. As we moved from analog to digital communications, the principles of modulation have remained relevant. Modern digital systems still utilize concepts derived from traditional methods like upper sideband modulation, showcasing its foundational role in the development of contemporary communication technologies.In conclusion, the term upper sideband is not just a technical jargon; it represents a fundamental concept in the realm of radio communication. Its significance spans across various fields, including amateur radio, aviation, and military operations. By understanding the advantages and applications of upper sideband, we gain a deeper appreciation for the intricacies of communication systems that connect us in today’s world. As technology continues to advance, the principles behind upper sideband will likely continue to play a vital role in shaping the future of wireless communication.

在无线电通信领域，术语upper sideband指的是一种用于传输信号的特定调制方法。调制是一种改变载波波特性以编码信息的技术。例如，在幅度调制（AM）中，载波波的幅度会根据信息信号的变化而变化。然而，还有更有效的方法来传输信号，其中之一就是单边带（SSB）调制。在这一类别中，我们可以找到upper sideband和下边带（LSB）技术。upper sideband尤其重要，因为它允许使用与载波波相关的频谱的上半部分来传输信息。使用upper sideband调制的优点在于其效率。通过消除载波波和下边带，无线电操作员可以释放带宽并减少功率需求。这在长距离通信中尤为关键，因为清晰度和信号强度至关重要。例如，业余无线电操作员在HF（高频）波段进行通信时，通常会使用upper sideband。这不仅提高了传输质量，还使更多频道可供使用。此外，upper sideband还广泛应用于业余无线电以外的各种应用。在航空通信中，飞行员和空中交通管制员依赖于清晰简洁的传输，因此常常使用upper sideband。使用upper sideband确保重要信息在传输时不受干扰，从而增强航空操作的安全性。upper sideband的另一个重要应用是在军事通信中。能够在长距离内以较低的功率传输清晰信号，使得upper sideband成为军事行动的首选。这种调制方法有助于维护安全可靠的通信渠道，这在战略行动中至关重要。除了实际应用之外，理解upper sideband的概念也提供了对通信技术演变的见解。当我们从模拟通信转向数字通信时，调制原理仍然保持相关性。现代数字系统仍然利用源自传统方法的概念，例如upper sideband调制，展示了其在当代通信技术发展中的基础性作用。总之，术语upper sideband不仅仅是技术术语；它代表了无线电通信领域的一个基本概念。它的重要性跨越了多个领域，包括业余无线电、航空和军事操作。通过理解upper sideband的优势和应用，我们对连接当今世界的通信系统的复杂性有了更深刻的认识。随着技术的不断进步，upper sideband背后的原理可能会继续在塑造无线通信的未来中发挥重要作用。