ionospheric absorption

简明释义

电离层吸收

英英释义

例句

1.High-frequency radio signals can experience significant ionospheric absorption 电离层吸收 during solar flares.

高频无线电信号在太阳耀斑期间可能会经历显著的ionospheric absorption 电离层吸收 。

2.Amateur radio operators must account for ionospheric absorption 电离层吸收 when planning their transmissions.

业余无线电操作员在规划传输时必须考虑ionospheric absorption 电离层吸收 。

3.During the night, the ionospheric absorption 电离层吸收 of radio waves decreases, allowing for better long-distance communication.

在夜间，电波的ionospheric absorption 电离层吸收 减少，从而改善了远程通信。

4.The ionospheric absorption 电离层吸收 level varies with the time of day and solar activity.

随着时间的推移和太阳活动的变化，ionospheric absorption 电离层吸收 水平也会有所不同。

5.Scientists study ionospheric absorption 电离层吸收 to understand its effects on satellite signals.

科学家研究ionospheric absorption 电离层吸收 以了解其对卫星信号的影响。

作文

The study of radio waves and their behavior is crucial for various fields, including communications, navigation, and meteorology. One important phenomenon that affects radio wave propagation is ionospheric absorption. This term refers to the loss of energy that occurs when radio waves pass through the ionosphere, a layer of the Earth's atmosphere that is ionized by solar radiation. Understanding ionospheric absorption is essential for optimizing radio transmission and enhancing communication systems.The ionosphere is located approximately 30 miles above the Earth's surface and extends up to about 600 miles. It contains a high concentration of ions and free electrons, which can absorb and scatter radio waves. When radio waves encounter this layer, some of their energy is absorbed, leading to reduced signal strength. This effect is particularly pronounced at certain frequencies, especially those below 30 MHz. As a result, ionospheric absorption can significantly impact long-distance radio communication, making it more challenging to maintain clear signals.Factors such as solar activity, time of day, and geographical location can influence the degree of ionospheric absorption. For instance, during periods of high solar activity, the ionosphere becomes more ionized, leading to increased absorption of radio waves. Similarly, at night, the ionosphere tends to have different characteristics compared to daytime, which can also affect absorption levels. Understanding these variations is vital for radio operators and engineers who rely on effective communication.In practical applications, mitigating the effects of ionospheric absorption involves several strategies. One common approach is to use higher frequencies that are less affected by ionospheric conditions. Additionally, employing advanced modulation techniques can help improve signal clarity despite the presence of absorption. Engineers also utilize predictive models to forecast ionospheric conditions, allowing for better planning of radio transmissions.Research into ionospheric absorption continues to evolve, with scientists exploring new methods to measure and analyze its effects. Satellite-based observations and ground-based monitoring stations provide valuable data that contribute to our understanding of how the ionosphere interacts with radio waves. By improving our knowledge of this phenomenon, we can enhance the reliability of communication systems, especially in remote areas where traditional infrastructure may be lacking.In conclusion, ionospheric absorption plays a significant role in the field of radio wave propagation, impacting various aspects of communication and navigation. By comprehensively studying this phenomenon, we can develop better strategies to mitigate its effects and ensure clearer and more reliable communication across distances. As technology advances, the importance of understanding ionospheric absorption will only continue to grow, emphasizing the need for ongoing research and innovation in this area.

无线电波及其行为的研究对于通信、导航和气象等多个领域至关重要。影响无线电波传播的一个重要现象是离子层吸收。这个术语指的是无线电波通过离子层时发生的能量损失，离子层是地球大气的一层，由太阳辐射电离而成。理解离子层吸收对于优化无线电传输和增强通信系统至关重要。离子层位于离地表约30英里（约48公里）处，延伸到约600英里（约965公里）。它包含高浓度的离子和自由电子，这些离子和电子可以吸收和散射无线电波。当无线电波遇到这一层时，它们的一部分能量会被吸收，导致信号强度降低。这种效应在某些频率下尤其明显，特别是在30 MHz以下的频率。因此，离子层吸收可能会显著影响远距离无线电通信，使得保持清晰信号变得更加困难。太阳活动、白天时间和地理位置等因素会影响离子层吸收的程度。例如，在太阳活动高峰期间，离子层的电离程度增加，导致无线电波的吸收增加。同样，在夜间，离子层的特性与白天相比往往有所不同，这也会影响吸收水平。了解这些变化对于依赖有效通信的无线电操作员和工程师至关重要。在实际应用中，减轻离子层吸收的影响涉及几种策略。一种常见的方法是使用受离子层条件影响较小的更高频率。此外，采用先进的调制技术可以帮助提高信号清晰度，尽管存在吸收现象。工程师们还利用预测模型来预测离子层条件，从而更好地规划无线电传输。对离子层吸收的研究继续发展，科学家们探索新的方法来测量和分析其影响。基于卫星的观测和地面监测站提供了宝贵的数据，有助于我们理解离子层如何与无线电波相互作用。通过提高我们对这一现象的认识，我们可以增强通信系统的可靠性，特别是在传统基础设施缺乏的偏远地区。总之，离子层吸收在无线电波传播领域中扮演着重要角色，影响着通信和导航的各个方面。通过全面研究这一现象，我们可以制定更好的策略来减轻其影响，确保跨距离的通信更加清晰和可靠。随着技术的进步，理解离子层吸收的重要性只会不断增加，强调了在这一领域进行持续研究和创新的必要性。