sky wave

简明释义

天波电离层反射波

英英释义

例句

1.The sky wave 天波 phenomenon allows signals to bounce off the ionosphere.

天波现象使信号能够反射到电离层。

2.The radio signal traveled long distances thanks to the sky wave 天波 propagation.

由于天波传播，广播信号传播了很远的距离。

3.Amateur radio operators often rely on sky wave 天波 transmission for long-distance communication.

业余无线电操作员通常依赖天波传输进行长距离通信。

4.During the night, we could receive clearer signals because of the sky wave 天波 effect.

在夜间，由于天波效应，我们能够接收到更清晰的信号。

5.In remote areas, sky wave 天波 can be a reliable way to receive broadcasts.

在偏远地区，天波可以成为接收广播的可靠方式。

作文

In the realm of radio communication, the term sky wave refers to a type of radio wave that is reflected off the ionosphere back to Earth. This phenomenon allows for long-distance communication, making it particularly useful for amateur radio operators and maritime communications. The sky wave propagation occurs when radio waves are transmitted at an angle, allowing them to reach the ionosphere, which acts as a reflective layer. The ability of these waves to bounce back to the Earth's surface enables signals to cover vast distances, often exceeding the line of sight limitations faced by ground-based communication systems.One of the most fascinating aspects of sky wave propagation is its reliance on atmospheric conditions. The ionosphere is not a static layer; rather, it fluctuates due to various factors such as solar activity, time of day, and seasonal changes. For instance, during the day, the ionosphere is more ionized due to sunlight, which can affect the frequency at which sky wave signals can be transmitted effectively. Conversely, at night, the ionization decreases, allowing for different frequencies to propagate better, thus enhancing long-distance communication.The use of sky wave communication has significant implications in various fields. In aviation, for example, pilots rely on high-frequency (HF) radio communication that utilizes sky wave propagation to maintain contact with air traffic control over oceans and remote areas where other communication methods may not be available. Similarly, maritime vessels depend on sky wave technology to communicate with each other and with shore stations, ensuring safety and coordination in open waters.Moreover, sky wave propagation plays a crucial role in amateur radio, where enthusiasts experiment with different frequencies and modes of communication. These operators often take advantage of sky wave conditions to connect with fellow amateurs across the globe, fostering international friendships and collaborations. Events like Field Day, where amateur radio operators set up temporary stations, showcase the effectiveness of sky wave communication in connecting people regardless of geographical barriers.However, sky wave communication is not without its challenges. Interference from man-made sources, such as power lines and electronic devices, can disrupt the clarity of signals. Additionally, unpredictable atmospheric conditions can lead to fading or distortion of the transmitted messages, making it essential for operators to be skilled in adjusting their equipment and techniques to optimize communication.In conclusion, the concept of sky wave is integral to understanding radio communications, especially for long-distance interactions. Its dependence on the ionosphere and atmospheric conditions highlights the complexity and dynamism of radio wave propagation. From aviation to maritime communication and amateur radio, sky wave technology continues to play a vital role in connecting individuals and facilitating information exchange across great distances. As technology evolves, so too will our understanding and utilization of sky wave communication, paving the way for even more innovative applications in the future.

在无线电通信领域，术语sky wave指的是一种能反射到地球的无线电波，这种现象使得长距离通信成为可能，特别适用于业余无线电操作员和海上通信。sky wave传播发生在无线电波以一定角度发射时，使其能够到达电离层，而电离层则充当了一个反射层。这些波能够反弹回地球表面，使信号覆盖广阔的距离，往往超出地面通信系统的视距限制。sky wave传播最迷人之处在于它对大气条件的依赖。电离层并不是一个静态层，而是由于太阳活动、日间时间和季节变化等各种因素而波动。例如，在白天，由于阳光的照射，电离层的电离程度较高，这会影响sky wave信号有效传输的频率。相反，在夜间，电离程度降低，允许不同频率更好地传播，从而增强长距离通信。sky wave通信在多个领域具有重要意义。例如，在航空领域，飞行员依赖高频（HF）无线电通信，该通信利用sky wave传播与空中交通管制保持联系，尤其是在海洋和偏远地区，其他通信方法可能无法使用。类似地，海上船只依靠sky wave技术与彼此及岸站进行通信，确保在开放水域的安全和协调。此外，sky wave传播在业余无线电中也发挥着关键作用，爱好者们实验不同的频率和通信模式。这些操作员经常利用sky wave条件与全球的业余爱好者建立联系，促进国际友谊和合作。像野外日这样的活动，业余无线电操作员设立临时站点，展示了sky wave通信在跨越地理障碍方面的有效性。然而，sky wave通信也并非没有挑战。来自人造源的干扰，例如电力线和电子设备，可能会干扰信号的清晰度。此外，不可预测的大气条件可能导致传输消息的衰减或失真，因此操作员必须熟练调整设备和技术，以优化通信。总之，sky wave的概念对于理解无线电通信至关重要，尤其是对于长距离交互。它对电离层和大气条件的依赖突显了无线电波传播的复杂性和动态性。从航空到海上通信再到业余无线电，sky wave技术继续在连接个人和促进信息交流方面发挥重要作用。随着技术的发展，我们对sky wave通信的理解和利用也将不断演进，为未来更具创新性的应用铺平道路。