tropospheric fading

简明释义

对流层衰落

英英释义

例句

1.Engineers must account for tropospheric fading when designing reliable communication systems.

工程师在设计可靠的通信系统时必须考虑对流层衰落的影响。

2.The study focused on how tropospheric fading impacts long-range radio transmission.

这项研究集中在对流层衰落如何影响长距离无线电传输。

3.The radio signal experienced significant tropospheric fading, leading to intermittent audio quality.

由于遭遇了显著的对流层衰落，广播信号导致音频质量时断时续。

4.During the storm, we noticed increased tropospheric fading affecting our satellite communications.

在暴风雨期间，我们注意到对流层衰落加剧，影响了我们的卫星通信。

5.We implemented a new algorithm to mitigate tropospheric fading in our cellular network.

我们实施了一种新算法，以减轻我们移动网络中的对流层衰落。

作文

In the realm of telecommunications, understanding the various phenomena that affect signal transmission is crucial. One such phenomenon is tropospheric fading, which refers to the fluctuations in signal strength caused by variations in the Earth's atmosphere, particularly in the troposphere. The troposphere is the lowest layer of the Earth's atmosphere, extending from the surface up to about 8 to 15 kilometers high, depending on geographical location and weather conditions. This layer contains most of the atmosphere's mass and is where most weather events occur. When radio waves travel through the troposphere, they can encounter different atmospheric conditions such as humidity, temperature, and pressure changes. These variations can lead to tropospheric fading by causing the radio signals to scatter or refract. As a result, the strength of the received signal can fluctuate, which may cause interruptions in communication or degraded audio quality in telecommunication systems. This fading effect can be particularly pronounced during certain weather conditions, such as heavy rain or thunderstorms, which can further complicate signal transmission. The impact of tropospheric fading is significant for various applications, including television broadcasting, mobile communications, and satellite transmissions. For instance, in television broadcasting, when signals are transmitted over long distances, they must pass through the troposphere. If conditions are not favorable, viewers may experience pixelation or loss of signal entirely. Similarly, in mobile communications, users may notice dropped calls or poor voice quality in areas where tropospheric fading is prevalent. To mitigate the effects of tropospheric fading, engineers and researchers have developed several strategies. One common approach is to use diversity techniques, which involve transmitting the same signal through multiple paths or using multiple antennas. By doing so, even if one path experiences fading, the other paths may still provide a strong signal, thus improving overall communication reliability. Additionally, adaptive modulation and coding schemes can be employed, allowing systems to adjust the transmission parameters based on current signal conditions. Furthermore, advancements in technology have led to the development of more robust error correction algorithms that can help recover lost information due to tropospheric fading. These algorithms work by adding redundant data to the transmitted signal, which can be used to reconstruct the original message at the receiving end, even if some parts of the signal were affected by fading. In conclusion, tropospheric fading is a critical factor to consider in the field of telecommunications. It highlights the challenges posed by the natural environment on signal transmission and emphasizes the need for innovative solutions to enhance communication reliability. As we continue to rely on wireless technologies for everyday communication, understanding and addressing the impacts of tropospheric fading will remain essential for ensuring seamless connectivity in our increasingly interconnected world.

在电信领域，理解影响信号传输的各种现象至关重要。一个这样的现象是对流层衰落，它指的是由于地球大气层，特别是对流层中的变化而导致的信号强度波动。对流层是地球大气层的最低层，从地面延伸到大约8到15公里高，具体取决于地理位置和天气条件。这一层包含了大部分大气的质量，并且是大多数天气事件发生的地方。当无线电波通过对流层传播时，它们可能会遇到不同的大气条件，如湿度、温度和压力变化。这些变化可能导致对流层衰落，因为无线电信号会散射或折射。因此，接收到的信号强度可能会波动，这可能导致通信中断或电信系统音质下降。这种衰落效应在某些天气条件下，尤其是大雨或雷暴期间，会显得尤为明显，这进一步复杂化了信号传输。对流层衰落的影响对于各种应用都是显著的，包括电视广播、移动通信和卫星传输。例如，在电视广播中，当信号远距离传输时，必须穿过对流层。如果条件不利，观众可能会经历画面马赛克或完全失去信号。同样，在移动通信中，用户可能会注意到在对流层衰落盛行的地区通话中断或语音质量差。为了减轻对流层衰落的影响，工程师和研究人员开发了几种策略。一种常见的方法是使用多样性技术，这涉及通过多条路径或使用多个天线同时传输相同的信号。通过这样做，即使一条路径经历了衰落，其他路径仍然可以提供强信号，从而改善整体通信可靠性。此外，可以采用自适应调制和编码方案，使系统能够根据当前信号条件调整传输参数。此外，技术的进步也促使了更强大的错误纠正算法的发展，这些算法可以帮助恢复由于对流层衰落而丢失的信息。这些算法通过向传输信号添加冗余数据来工作，这些数据可以在接收端用于重建原始消息，即使信号的某些部分受到衰落的影响。总之，对流层衰落是电信领域需要考虑的一个关键因素。它突显了自然环境对信号传输带来的挑战，并强调了增强通信可靠性的创新解决方案的必要性。随着我们继续依赖无线技术进行日常通信，理解和解决对流层衰落的影响将对确保我们日益互联的世界中的无缝连接至关重要。