out of band emission

简明释义

带外发射

英英释义

例句

1.To comply with regulations, we need to reduce the out of band emission 带外辐射 from our transmission systems.

为了遵守规定，我们需要减少传输系统的带外辐射。

2.Engineers are developing filters to minimize out of band emission 带外辐射 in wireless communication devices.

工程师正在开发滤波器，以最小化无线通信设备中的带外辐射。

3.The report highlighted the importance of measuring out of band emission 带外辐射 for compliance testing.

报告强调了在合规测试中测量带外辐射的重要性。

4.The technician noted that the device had significant out of band emission 带外辐射 issues during testing.

技术人员注意到该设备在测试过程中存在显著的带外辐射问题。

5.Improper shielding can lead to increased out of band emission 带外辐射 levels in electronic devices.

不当的屏蔽可能导致电子设备中带外辐射水平增加。

作文

In the realm of telecommunications and signal processing, the term out of band emission refers to the transmission of signals outside the designated frequency range allocated for a particular communication channel. This phenomenon can occur in various forms, such as unwanted noise, harmonics, or spurious emissions that may interfere with other channels or systems operating in nearby frequency bands. Understanding out of band emission is crucial for ensuring the integrity and reliability of communication systems, especially in an era where multiple devices and services share the same spectrum.The concept of out of band emission can be illustrated through the example of radio broadcasting. When a radio station transmits its signal, it is assigned a specific frequency range. Ideally, the station's signal should remain within this range to avoid interference with other stations. However, if the equipment used for transmission is not properly calibrated or designed, it may inadvertently produce signals outside the assigned frequency range. These unwanted signals can cause disruptions to nearby stations, leading to poor reception and degraded audio quality for listeners.Furthermore, out of band emission is not limited to radio frequencies; it is also relevant in digital communications, such as Wi-Fi networks and cellular systems. In these cases, devices are expected to operate within specific frequency bands to minimize interference. If a device emits signals outside its designated band, it can disrupt the performance of other devices sharing the same spectrum, resulting in slower speeds, dropped connections, or even complete service outages.Regulatory bodies, such as the Federal Communications Commission (FCC) in the United States, set strict guidelines regarding out of band emission. These regulations are designed to protect the integrity of communication systems and ensure that all users can operate without interference. Manufacturers of communication equipment must adhere to these standards during the design and testing phases to minimize the risk of out of band emission.To mitigate the effects of out of band emission, engineers employ various techniques, including filtering and shielding. Filters can be used to limit the frequency range of emitted signals, ensuring that only the desired frequencies are transmitted. Additionally, proper shielding of electronic components can help prevent unwanted emissions from escaping and interfering with other devices. These measures are essential for maintaining a clean and efficient communication environment.In conclusion, the understanding of out of band emission is vital for anyone involved in the fields of telecommunications and signal processing. As technology continues to evolve and the demand for wireless communication increases, the importance of managing out of band emission will only grow. By adhering to regulations and implementing effective engineering practices, we can ensure that communication systems remain reliable and free from interference, ultimately benefiting all users in our interconnected world.

在电信和信号处理领域，术语带外发射指的是信号在特定通信通道分配的频率范围之外的传输。这种现象可以以各种形式出现，例如不必要的噪声、谐波或杂散发射，这些都可能干扰在附近频率带上运行的其他通道或系统。理解带外发射对于确保通信系统的完整性和可靠性至关重要，尤其是在多个设备和服务共享同一频谱的时代。带外发射的概念可以通过广播电台的例子来说明。当一个电台发射信号时，它被分配了一个特定的频率范围。理想情况下，电台的信号应该保持在这个范围内，以避免与其他电台的干扰。然而，如果用于发射的设备没有正确校准或设计，它可能会无意中产生超出分配频率范围的信号。这些不必要的信号可能会对附近的电台造成干扰，导致接收不良和听众音质下降。此外，带外发射不仅限于无线电频率；它在数字通信中同样相关，例如Wi-Fi网络和蜂窝系统。在这些情况下，设备预计将在特定频段内运行，以最小化干扰。如果设备在其指定频段外发射信号，可能会干扰共享同一频谱的其他设备的性能，导致速度减慢、连接中断或甚至完全服务中断。监管机构，如美国联邦通信委员会（FCC），对带外发射设定了严格的指导方针。这些规定旨在保护通信系统的完整性，并确保所有用户在没有干扰的情况下运行。通信设备的制造商必须在设计和测试阶段遵守这些标准，以最小化带外发射的风险。为了减轻带外发射的影响，工程师采用各种技术，包括过滤和屏蔽。可以使用滤波器来限制发射信号的频率范围，确保仅传输所需的频率。此外，电子元件的适当屏蔽可以防止不必要的发射逃逸并干扰其他设备。这些措施对于维护一个清晰高效的通信环境至关重要。总之，理解带外发射对于任何参与电信和信号处理领域的人来说都是至关重要的。随着技术的不断发展和无线通信需求的增加，管理带外发射的重要性只会增长。通过遵循法规和实施有效的工程实践，我们可以确保通信系统保持可靠且免受干扰，从而最终使我们互联世界中的所有用户受益。