adjacent channel

简明释义

相邻信道

英英释义

例句

1.The technician adjusted the frequency to minimize interference from the adjacent channel 相邻频道.

技术员调整了频率以最小化来自<adjacent channel>的干扰。

2.Using a high-quality filter can help eliminate noise from the adjacent channel 相邻频道.

使用高质量的滤波器可以帮助消除来自<adjacent channel>的噪音。

3.In telecommunications, devices must filter out signals from the adjacent channel 相邻频道 to maintain clarity.

在电信中，设备必须过滤掉来自<adjacent channel>的信号以保持清晰度。

4.The radio interference was caused by signals from the adjacent channel 相邻频道.

无线电干扰是由于来自<adjacent channel>的信号造成的。

5.When tuning the TV, make sure to avoid the adjacent channel 相邻频道 to prevent static noise.

调节电视时，确保避免<adjacent channel>以防静态噪音。

作文

In the world of telecommunications and broadcasting, the term adjacent channel refers to a frequency band that is immediately next to another frequency band. This concept is crucial in understanding how signals are transmitted and received without interference. When two channels are adjacent to each other, they can potentially cause overlap in their frequency ranges, leading to what is known as co-channel interference. This phenomenon occurs when signals from two or more transmitters interfere with each other, which can degrade the quality of the communication. Therefore, it is essential for engineers and technicians to carefully plan frequency allocations to minimize the risks associated with adjacent channel interference.One common example of adjacent channel issues can be found in FM radio broadcasting. Radio stations are assigned specific frequencies to operate on, and if two stations are too close in frequency, listeners may experience static or overlapping audio. For instance, if one station broadcasts at 101.1 MHz and another at 101.3 MHz, these frequencies are considered adjacent channels. If the power levels are too high or the antennas are not properly positioned, the broadcasts can interfere with each other, making it difficult for listeners to enjoy clear sound.Moreover, in the realm of wireless communications, such as cellular networks and Wi-Fi, adjacent channel interference can also pose significant challenges. Mobile phone networks use various frequency bands to facilitate communication between devices. If two cell towers operate on adjacent channels, users may experience dropped calls or poor data speeds due to the overlapping signals. Similarly, in Wi-Fi networks, routers that operate on adjacent channels can interfere with each other, leading to slower internet speeds and connection instability.To mitigate the issues related to adjacent channel interference, various strategies can be employed. One effective method is to increase the physical distance between transmitting devices. By ensuring that devices operating on adjacent channels are sufficiently spaced apart, the risk of interference can be significantly reduced. Additionally, using directional antennas can help focus the signal in a specific direction, minimizing the overlap with neighboring channels. Another approach is to implement advanced technology such as frequency hopping spread spectrum (FHSS) or orthogonal frequency-division multiplexing (OFDM), which allows multiple signals to coexist in the same frequency range without interfering with one another. These technologies are particularly useful in crowded frequency environments, where many devices are competing for limited bandwidth.In conclusion, understanding the implications of adjacent channel interference is vital for anyone involved in the fields of telecommunications, broadcasting, or wireless communications. By recognizing the potential challenges and implementing effective strategies to mitigate interference, engineers and technicians can ensure clearer communication and better service for users. The careful management of frequency allocations and the adoption of innovative technologies will continue to play a critical role in the evolution of communication systems, allowing us to connect more effectively in an increasingly complex and crowded frequency landscape.

在电信和广播的世界中，术语adjacent channel指的是与另一个频带紧邻的频带。这个概念对于理解信号如何传输和接收而不发生干扰至关重要。当两个频道彼此相邻时，它们的频率范围可能会重叠，导致所谓的同频道干扰。这种现象发生在两个或多个发射机的信号相互干扰时，这可能会降低通信质量。因此，工程师和技术人员必须仔细规划频率分配，以尽量减少与adjacent channel干扰相关的风险。一个常见的adjacent channel问题的例子可以在FM广播中找到。广播电台被分配特定的频率进行播出，如果两个电台的频率过于接近，听众可能会经历静电或音频重叠。例如，如果一个电台在101.1 MHz广播，而另一个在101.3 MHz，这些频率被视为adjacent channels。如果功率水平过高或天线未正确放置，广播可能会相互干扰，使听众难以享受清晰的声音。此外，在无线通信领域，如蜂窝网络和Wi-Fi，adjacent channel干扰也可能带来重大挑战。移动电话网络使用各种频率带来促进设备之间的通信。如果两个基站在adjacent channels上运行，用户可能会因信号重叠而经历掉话或数据速度缓慢。同样，在Wi-Fi网络中，运行在adjacent channels上的路由器可能会相互干扰，导致互联网速度变慢和连接不稳定。为了减轻与adjacent channel干扰相关的问题，可以采用多种策略。一种有效的方法是增加发射设备之间的物理距离。通过确保在adjacent channels上运行的设备之间有足够的间距，可以显著降低干扰的风险。此外，使用定向天线可以帮助将信号集中在特定方向，从而最小化与邻近频道的重叠。另一种方法是实施先进技术，例如频率跳跃扩频（FHSS）或正交频分复用（OFDM），这允许多个信号在相同的频率范围内共存而不会相互干扰。这些技术在频率环境拥挤的情况下尤其有用，在这种情况下，许多设备竞争有限的带宽。总之，理解adjacent channel干扰的影响对于任何参与电信、广播或无线通信领域的人来说都是至关重要的。通过认识潜在的挑战并实施有效的策略来减轻干扰，工程师和技术人员可以确保更清晰的通信和更好的服务。对频率分配的仔细管理和创新技术的采用将在通信系统的发展中继续发挥关键作用，使我们能够在日益复杂和拥挤的频率环境中更有效地连接。