ground propagation

简明释义

地面传播

英英释义

例句

1.In radio communication, ground propagation is essential for long-distance signal transmission.

在无线电通信中，地面传播 对于远距离信号传输至关重要。

2.The study of ground propagation helps engineers design better antennas.

对地面传播的研究帮助工程师设计更好的天线。

3.The ground propagation model predicts how signals travel over different terrains.

该地面传播模型预测信号如何在不同地形上传播。

4.Understanding ground propagation can improve the performance of wireless networks.

理解地面传播可以提高无线网络的性能。

5.During the experiment, we observed that ground propagation affected the signal strength significantly.

在实验中，我们观察到地面传播显著影响了信号强度。

作文

Ground propagation is a crucial concept in the field of telecommunications and wireless communication. It refers to the way in which radio waves travel along the surface of the Earth. Understanding ground propagation (地面传播) is essential for engineers and researchers who are involved in designing effective communication systems, especially in rural or suburban areas where traditional line-of-sight communication may not be feasible.One of the key characteristics of ground propagation (地面传播) is that it can significantly influence the range and quality of the signal received. When radio waves propagate along the ground, they can encounter various obstacles such as buildings, trees, and hills that can cause reflections, diffraction, and scattering. These interactions can either enhance or degrade the signal strength depending on the frequency of the waves and the nature of the terrain.For example, lower frequency waves tend to follow the curvature of the Earth better than higher frequency waves. This phenomenon allows them to cover greater distances, making them ideal for long-range communication. However, high-frequency waves can provide higher data rates and better quality signals but are more susceptible to obstacles and require a clear line of sight. Therefore, understanding the principles of ground propagation (地面传播) is vital for choosing the right frequency for specific applications.In addition to frequency considerations, the type of terrain plays an important role in ground propagation (地面传播). Urban environments with tall buildings can create a challenging landscape for radio waves, leading to signal shadowing and multipath propagation where signals take multiple paths to reach the receiver. This can result in fading and distortion of the received signal. Conversely, open fields or flat terrains allow for better signal transmission and reception, making them ideal locations for setting up communication towers.Moreover, the time of day and weather conditions also affect ground propagation (地面传播). For instance, during the night, certain frequencies may propagate further due to changes in the ionosphere, while rain or fog can absorb or scatter signals, reducing their effective range. Engineers must take these factors into account when planning communication networks to ensure reliable connectivity.Technological advancements have led to the development of sophisticated models and simulations that help predict ground propagation (地面传播) behavior under various conditions. These tools enable engineers to design more efficient communication systems by optimizing the placement of antennas and selecting appropriate frequencies. Furthermore, the integration of machine learning algorithms has opened new avenues for improving the accuracy of these predictions, allowing for real-time adjustments based on environmental changes.In conclusion, ground propagation (地面传播) is a fundamental aspect of radio wave transmission that affects the performance of communication systems. By understanding its principles, engineers can design more robust networks that meet the demands of modern society. As technology continues to evolve, the importance of mastering ground propagation (地面传播) will only grow, ensuring that we remain connected in an increasingly digital world.