antenna noise

简明释义

天线损耗

英英释义

例句

1.To improve reception, we need to reduce the antenna noise 天线噪声 in this area.

为了改善接收，我们需要减少这个区域的天线噪声 antenna noise。

2.The technician explained that the antenna noise 天线噪声 was causing interference in the signal.

技术人员解释说，天线噪声 antenna noise 正在干扰信号。

3.We noticed that the antenna noise 天线噪声 increased significantly at night.

我们注意到，夜间的天线噪声 antenna noise 显著增加。

4.High antenna noise 天线噪声 can lead to poor audio quality during broadcasts.

高水平的天线噪声 antenna noise 会导致广播过程中音质差。

5.The engineers conducted tests to measure the antenna noise 天线噪声 levels during the storm.

工程师们在风暴期间进行了测试，以测量天线噪声 antenna noise 的水平。

作文

In the world of communication technology, one of the critical challenges engineers face is managing and minimizing antenna noise. 天线噪声 refers to the unwanted signals that can interfere with the reception of desired signals by an antenna. This noise can arise from various sources, including thermal noise, atmospheric noise, and man-made interference, which can significantly impact the performance of communication systems. Understanding and mitigating antenna noise is essential for ensuring clear and reliable communications, especially in applications such as satellite communications, radio broadcasting, and wireless networking.To grasp the concept of antenna noise, it is important to first understand how antennas work. An antenna is designed to transmit or receive electromagnetic waves, converting them into electrical signals. However, while an antenna is tuned to pick up specific frequencies, it is also susceptible to other signals that may not be relevant to the intended communication. These extraneous signals manifest as antenna noise, which can obscure or distort the desired signal.One of the primary sources of antenna noise is thermal noise, which is generated by the random motion of electrons in conductive materials. As the temperature of the antenna increases, so does the level of thermal noise. This type of noise is generally unavoidable and increases with frequency, posing a significant challenge for high-frequency communications.Another significant contributor to antenna noise is atmospheric noise, which is caused by natural phenomena such as lightning and solar radiation. This type of noise can vary widely depending on environmental conditions and can introduce unpredictable interference into communication systems. Additionally, man-made sources of noise, such as industrial equipment, vehicles, and electronic devices, can further exacerbate the issue of antenna noise.Mitigating antenna noise is crucial for improving the signal-to-noise ratio (SNR) in communication systems. Engineers employ various techniques to minimize this noise, including using high-quality materials for antennas, implementing advanced signal processing algorithms, and designing antennas that are more selective to the desired frequency range. For instance, directional antennas can help focus on specific signals while rejecting others, thereby reducing the impact of antenna noise.Moreover, the design of communication protocols can also play a role in addressing antenna noise. Adaptive modulation and coding techniques can be employed to adjust the transmission parameters based on the current noise environment, ensuring that the communication remains robust even in the presence of interference. In conclusion, antenna noise is a significant factor that affects the performance of communication systems. By understanding its sources and implementing effective mitigation strategies, engineers can enhance the reliability and clarity of communications. As technology continues to advance, the importance of managing antenna noise will only grow, making it a vital area of research and development in the field of telecommunications.

在通信技术的世界中，工程师面临的一个关键挑战是管理和最小化天线噪声。天线噪声指的是可能干扰天线接收所需信号的多余信号。这种噪声可以来自各种来源，包括热噪声、大气噪声和人为干扰，这些都可能显著影响通信系统的性能。理解和减轻天线噪声对于确保清晰和可靠的通信至关重要，特别是在卫星通信、广播和无线网络等应用中。要理解天线噪声的概念，首先需要了解天线的工作原理。天线旨在传输或接收电磁波，将其转换为电信号。然而，尽管天线被调谐以接收特定频率，但它也容易受到其他信号的影响，这些信号可能与预期的通信无关。这些外来信号表现为天线噪声，可能会模糊或扭曲所需信号。天线噪声的主要来源之一是热噪声，它是由导电材料中电子的随机运动产生的。随着天线温度的升高，热噪声的水平也会增加。这种类型的噪声通常是不可避免的，并且随着频率的增加而增加，这对高频通信构成了重大挑战。另一个重要的天线噪声来源是大气噪声，它是由自然现象（如闪电和太阳辐射）引起的。这种类型的噪声可能因环境条件而异，并可能在通信系统中引入不可预测的干扰。此外，人为噪声源（如工业设备、车辆和电子设备）也可能进一步加剧天线噪声的问题。减轻天线噪声对于提高通信系统中的信噪比（SNR）至关重要。工程师采用各种技术来最小化这种噪声，包括使用高质量材料制造天线、实施先进的信号处理算法以及设计对所需频率范围更加选择性的天线。例如，定向天线可以帮助聚焦于特定信号，同时拒绝其他信号，从而减少天线噪声的影响。此外，通信协议的设计也可以在解决天线噪声问题中发挥作用。可以采用自适应调制和编码技术，根据当前的噪声环境调整传输参数，确保即使在干扰存在的情况下，通信仍然保持稳健。总之，天线噪声是影响通信系统性能的重要因素。通过理解其来源并实施有效的减轻策略，工程师可以增强通信的可靠性和清晰度。随着技术的不断进步，管理天线噪声的重要性只会增加，使其成为电信领域研究和发展的重要领域。