frequency division

简明释义

分频

英英释义

例句

1.By implementing frequency division, the network can support more users simultaneously.

通过实施频分，网络可以同时支持更多用户。

2.The concept of frequency division is essential in designing wireless communication systems.

频分的概念在设计无线通信系统中至关重要。

3.The technique of frequency division allows for simultaneous transmission of signals without interference.

频分技术允许信号的同时传输而不发生干扰。

4.In a frequency division multiplexing system, each signal is modulated onto a different frequency.

在频分复用系统中，每个信号都调制到不同的频率上。

5.In telecommunications, frequency division is used to allocate different channels for multiple users.

在电信中，频分用于为多个用户分配不同的信道。

作文

In the realm of telecommunications and signal processing, the concept of frequency division plays a crucial role in enabling efficient communication systems. Frequency division refers to the technique of dividing the available bandwidth into multiple frequency bands, each assigned to a different signal or channel. This method allows multiple signals to coexist without interference, making it an essential aspect of modern communication technologies.One of the most common applications of frequency division is in radio broadcasting. In this context, radio stations are allocated specific frequency ranges within the electromagnetic spectrum. For instance, FM radio stations operate between 88 MHz and 108 MHz, with each station assigned a unique frequency within this range. By employing frequency division, listeners can tune into their desired station without experiencing overlapping signals from other stations. This clear separation of frequencies ensures that audio quality remains high and that listeners can enjoy uninterrupted broadcasts.Another significant application of frequency division is in mobile communications. Technologies such as Frequency Division Multiple Access (FDMA) utilize this principle to allow multiple users to share the same communication medium. In FDMA, each user is assigned a distinct frequency band for the duration of their call or data transmission. This separation minimizes interference and maximizes the efficient use of the available spectrum. As a result, mobile networks can support a larger number of simultaneous users, enhancing overall service quality.Moreover, frequency division is also utilized in digital communication systems. For example, Orthogonal Frequency Division Multiplexing (OFDM) is a method that divides a single data stream into several parallel streams, each transmitted over different frequencies. This approach improves data transmission rates and reduces the effects of interference and multipath fading, which are common challenges in wireless communication.The importance of frequency division extends beyond telecommunications; it is also relevant in various fields such as radar systems and satellite communications. In radar technology, frequency division helps distinguish between different targets by analyzing the frequency shifts in the returned signals. Similarly, satellites use frequency division to manage multiple communication channels simultaneously, ensuring reliable data transmission back to Earth.In summary, frequency division is a fundamental technique that underpins many aspects of modern communication systems. By dividing the available bandwidth into distinct frequency bands, it allows for efficient signal transmission and minimizes interference. Whether in radio broadcasting, mobile communications, or digital data transfer, the principles of frequency division are essential for achieving high-quality and reliable communication. As technology continues to evolve, the significance of frequency division will undoubtedly remain at the forefront of advancements in the field of telecommunications and beyond.

在电信和信号处理领域，频率划分的概念在实现高效通信系统中发挥着至关重要的作用。频率划分是指将可用带宽分为多个频率带，每个频率带分配给不同的信号或通道。这种方法允许多个信号共存而不发生干扰，使其成为现代通信技术的重要组成部分。频率划分最常见的应用之一是在广播中。在这种情况下，广播电台被分配特定的频率范围，在电磁波谱内。例如，FM广播电台的工作频率为88 MHz到108 MHz，每个电台在此范围内分配一个独特的频率。通过采用频率划分，听众可以调谐到他们想要的电台，而不会受到其他电台重叠信号的影响。这种频率的清晰分离确保音频质量保持高水平，并使听众能够享受不中断的广播。另一个频率划分的重要应用是在移动通信中。像频率分配多址接入（FDMA）这样的技术利用这一原理，允许多个用户共享同一通信媒介。在FDMA中，每个用户在通话或数据传输期间被分配一个独特的频率带。这种分离最小化了干扰并最大化了可用频谱的有效使用。因此，移动网络可以支持更多的同时用户，从而提高整体服务质量。此外，频率划分还在数字通信系统中得到了应用。例如，正交频分复用（OFDM）是一种将单个数据流分成多个并行流的方法，每个流通过不同的频率进行传输。这种方法提高了数据传输速率，并减少了干扰和多径衰落的影响，这些都是无线通信中的常见挑战。频率划分的重要性不仅限于电信；它在雷达系统和卫星通信等多个领域也具有相关性。在雷达技术中，频率划分帮助通过分析返回信号中的频率偏移来区分不同的目标。同样，卫星利用频率划分来同时管理多个通信通道，确保可靠的数据传输回地球。总之，频率划分是一项基本技术，支撑着现代通信系统的许多方面。通过将可用带宽划分为不同的频率带，它允许高效的信号传输并最小化干扰。无论是在广播、移动通信还是数字数据传输中，频率划分的原理对于实现高质量和可靠的通信至关重要。随着技术的不断发展，频率划分的重要性无疑将在电信及其他领域的进步中继续处于前沿。