ultra-high frequency

简明释义

超高频

英英释义

例句

1.The scientists studied the effects of ultra-high frequency 超高频 waves on plant growth.

科学家研究了超高频 ultra-high frequency 波对植物生长的影响。

2.Many modern televisions use ultra-high frequency 超高频 signals to receive high-definition channels.

许多现代电视使用超高频 ultra-high frequency 信号接收高清频道。

3.The radio station broadcasts on an ultra-high frequency 超高频 band, allowing for clearer sound quality.

这家电台在超高频 ultra-high frequency 波段上广播，提供更清晰的音质。

4.The ultra-high frequency 超高频 spectrum is commonly used for mobile phones and two-way radios.

超高频 ultra-high frequency 频谱通常用于手机和对讲机。

5.In aviation, ultra-high frequency 超高频 communication is essential for air traffic control.

在航空领域，超高频 ultra-high frequency 通信对于空中交通管制至关重要。

作文

In the realm of telecommunications, the term ultra-high frequency refers to a specific range of radio frequencies that are utilized for various forms of communication. This range typically spans from 300 MHz to 3 GHz, making it an essential component in modern wireless communication technologies. The significance of ultra-high frequency is particularly evident in applications such as television broadcasting, mobile phones, and satellite communications. To understand the importance of ultra-high frequency, one must first appreciate how radio waves function. Radio waves are electromagnetic waves that travel through the air, and their frequency determines how they propagate and interact with objects around them. Lower frequencies tend to travel longer distances but may struggle to penetrate obstacles, whereas higher frequencies can provide better resolution and data rates but often have limited range. This is where ultra-high frequency comes into play, striking a balance between distance and clarity. Television broadcasting is one of the most prominent uses of ultra-high frequency. In many countries, channels are allocated within this frequency range to transmit high-quality video and audio signals. This allows viewers to enjoy clear reception without significant interference, which is critical for maintaining viewer engagement and satisfaction. Moreover, the transition from analog to digital broadcasting has further enhanced the capabilities of ultra-high frequency signals, allowing for multiple channels to be broadcast simultaneously over the same frequency spectrum. Another critical application of ultra-high frequency is in mobile communications. The advent of smartphones and other mobile devices has led to an exponential increase in the demand for efficient and reliable communication networks. Ultra-high frequency bands are ideal for this purpose, as they can support high data rates necessary for streaming services, online gaming, and other bandwidth-intensive applications. Mobile network operators often utilize these frequencies to ensure that users can stay connected even in densely populated urban areas where lower frequencies might struggle to cope with the volume of traffic. Additionally, ultra-high frequency is vital in satellite communications. Satellites orbiting the Earth rely on these frequencies to transmit signals back to ground stations. The ability to send and receive data at ultra-high frequency allows for real-time communication, which is essential for applications ranging from weather forecasting to global positioning systems (GPS). The clarity and speed provided by ultra-high frequency signals make them indispensable for modern navigation and emergency response systems. In conclusion, the term ultra-high frequency encompasses a crucial segment of the radio frequency spectrum that plays a pivotal role in contemporary communication technologies. From television broadcasting to mobile communications and satellite operations, the applications of ultra-high frequency are vast and varied. As technology continues to evolve, the importance of understanding and utilizing ultra-high frequency will only grow, making it a fundamental concept for anyone interested in the fields of telecommunications and information technology.

在电信领域，术语超高频指的是用于各种通信形式的特定无线电频率范围。该范围通常从300 MHz到3 GHz，成为现代无线通信技术的重要组成部分。超高频的意义在于电视广播、手机和卫星通信等应用中尤为明显。要理解超高频的重要性，首先必须了解无线电波的功能。无线电波是通过空气传播的电磁波，其频率决定了它们如何传播以及与周围物体的相互作用。较低的频率往往能够传播更远的距离，但可能难以穿透障碍物，而较高的频率则可以提供更好的分辨率和数据速率，但通常范围有限。这就是超高频发挥作用的地方，它在距离和清晰度之间取得了平衡。电视广播是超高频最显著的用途之一。在许多国家，频道被分配在此频率范围内，以传输高质量的视频和音频信号。这使得观众能够享受清晰的接收，而没有显著的干扰，这对维护观众的参与度和满意度至关重要。此外，从模拟广播到数字广播的过渡进一步增强了超高频信号的能力，使得可以在同一频谱上同时广播多个频道。超高频在移动通信中的另一个关键应用是，智能手机和其他移动设备的出现导致对高效可靠的通信网络需求呈指数级增长。超高频频段非常适合此目的，因为它们可以支持流媒体服务、在线游戏和其他带宽密集型应用所需的高数据速率。移动网络运营商通常利用这些频率来确保用户即使在拥挤的城市地区也能保持连接，而较低的频率可能难以应对流量的数量。此外，超高频在卫星通信中至关重要。环绕地球的卫星依赖这些频率将信号传回地面站。以超高频发送和接收数据的能力使实时通信成为可能，这对于天气预报、全球定位系统（GPS）等应用至关重要。超高频信号提供的清晰度和速度使其在现代导航和应急响应系统中不可或缺。总之，术语超高频涵盖了无线电频谱中的一个关键部分，在当代通信技术中发挥着重要作用。从电视广播到移动通信再到卫星操作，超高频的应用广泛而多样。随着技术的不断发展，理解和利用超高频的重要性只会增加，使其成为任何对电信和信息技术领域感兴趣的人的基本概念。