atmospheric attenuation

简明释义

大气衰减

英英释义

例句

1.Engineers must consider atmospheric attenuation when designing wireless networks, as it can significantly reduce coverage.

工程师在设计无线网络时必须考虑大气衰减，因为它会显著减少覆盖范围。

2.During the weather report, they mentioned that heavy rain could increase atmospheric attenuation for radio waves.

在天气报告中，他们提到大雨可能会增加无线电波的大气衰减。

3.Scientists study atmospheric attenuation to improve the accuracy of remote sensing technologies.

科学家研究大气衰减以提高遥感技术的准确性。

4.The atmospheric attenuation caused by fog made it difficult for the pilots to land the aircraft safely.

雾霾造成的大气衰减使得飞行员难以安全降落飞机。

5.The signal strength of the satellite communication was affected by atmospheric attenuation, which refers to the loss of signal as it passes through the atmosphere.

卫星通信的信号强度受到大气衰减的影响，这指的是信号在通过大气层时的损失。

作文

Atmospheric attenuation is a crucial concept in various fields, including telecommunications, meteorology, and environmental science. It refers to the reduction in the strength of a signal as it travels through the Earth's atmosphere. This phenomenon can significantly impact the clarity and quality of signals transmitted over long distances, making it an important factor to consider in the design and implementation of communication systems.To understand atmospheric attenuation (大气衰减), one must first consider the nature of electromagnetic waves. These waves, which include radio waves, microwaves, and light, are used for various forms of communication. As these waves propagate through the atmosphere, they encounter different molecules, particles, and varying atmospheric conditions that can absorb or scatter the energy of the waves. This interaction leads to a decrease in signal strength, which we refer to as atmospheric attenuation.One of the key factors contributing to atmospheric attenuation (大气衰减) is humidity. Water vapor in the atmosphere can absorb certain frequencies of electromagnetic radiation, particularly in the microwave range. This absorption results in a significant loss of signal strength, especially during rainy or humid conditions. For instance, satellite communications often experience degradation in signal quality during heavy rainfall due to increased atmospheric attenuation.Another important factor is the presence of atmospheric gases, such as oxygen and carbon dioxide. These gases can also absorb specific wavelengths of electromagnetic radiation, contributing to atmospheric attenuation (大气衰减). The effects of these gases are generally more pronounced at higher altitudes, where the concentration of these gases is lower, causing signals to be less attenuated compared to those closer to the Earth's surface.In addition to humidity and atmospheric gases, particulate matter such as dust, smoke, and pollution can also play a role in atmospheric attenuation (大气衰减). These particles can scatter electromagnetic waves, leading to further signal degradation. This is particularly relevant in urban areas, where air quality can be poor due to industrial emissions and vehicle exhaust. Understanding how these factors contribute to atmospheric attenuation is essential for engineers and scientists working on improving communication technologies.The implications of atmospheric attenuation (大气衰减) are vast. In telecommunications, for example, network engineers must account for potential signal loss when designing systems that rely on satellite or microwave transmission. They may need to implement error correction techniques or increase the power of the transmitted signal to ensure reliable communication despite the effects of atmospheric attenuation.Moreover, meteorologists use knowledge of atmospheric attenuation (大气衰减) to better predict weather patterns and improve forecasting accuracy. By understanding how different atmospheric conditions affect signal propagation, they can provide more accurate information about weather-related disruptions to communication systems.In conclusion, atmospheric attenuation (大气衰减) is a complex but vital phenomenon that affects how signals travel through the atmosphere. Its implications are far-reaching, impacting telecommunications, meteorology, and environmental science. As technology continues to advance, understanding and mitigating the effects of atmospheric attenuation will remain an important focus for researchers and engineers alike.