side lobe

简明释义

旁瓣

英英释义

例句

1.The radar system is designed to minimize the impact of the side lobe 旁瓣 interference during tracking.

该雷达系统旨在最小化在跟踪过程中<旁瓣>干扰的影响。

2.The side lobe 旁瓣 radiation can cause unwanted signals in communication systems.

在通信系统中，<旁瓣>辐射可能会导致不必要的信号。

3.Engineers use various techniques to suppress the side lobe 旁瓣 emissions from the transmitter.

工程师使用各种技术来抑制发射器的<旁瓣>辐射。

4.In antenna design, reducing the side lobe 旁瓣 levels is crucial for improving overall performance.

在天线设计中，降低<旁瓣>水平对于提高整体性能至关重要。

5.The presence of a strong side lobe 旁瓣 can distort the main signal in a sonar application.

强烈的<旁瓣>存在可能会扭曲声纳应用中的主信号。

作文

In the field of engineering and signal processing, the term side lobe refers to the secondary peaks in the radiation pattern of an antenna or the response of a system. These peaks occur at angles away from the main direction of radiation, which is known as the main lobe. Understanding the concept of side lobe is crucial for designing efficient communication systems, as they can cause interference and reduce the overall performance of the system.To illustrate the importance of side lobe in real-world applications, consider the case of radar systems. Radar uses radio waves to detect objects and their distance. The main lobe of the radar beam focuses energy in a specific direction, allowing for accurate detection of targets. However, if the side lobe levels are too high, the radar may pick up false signals from unintended sources, leading to misinterpretations of data. This can be particularly problematic in military applications where precision is crucial.Moreover, in wireless communication, the presence of side lobes can lead to co-channel interference. When multiple transmitters operate on the same frequency, the side lobes of one transmitter can overlap with the main lobe of another, causing degradation of the signal quality. Engineers often employ various techniques, such as beamforming and antenna design modifications, to minimize the impact of side lobes and enhance the directivity of antennas.Another critical area where side lobes play a significant role is in medical imaging, particularly in ultrasound technology. In ultrasound imaging, the primary goal is to obtain clear and accurate images of internal organs. However, the presence of side lobes can create artifacts in the images, leading to potential misdiagnoses. To combat this issue, technicians must carefully calibrate the ultrasound equipment and select appropriate frequencies to ensure that the side lobes do not interfere with the quality of the images produced.In conclusion, the concept of side lobe is a fundamental aspect of many technological fields, including radar, wireless communication, and medical imaging. By comprehensively understanding side lobes, engineers and technicians can develop more efficient systems that minimize interference and improve performance. As technology continues to advance, the significance of managing side lobes will only grow, making it an essential topic for those involved in engineering and applied sciences.

在工程和信号处理领域，术语旁瓣指的是天线辐射模式或系统响应中的次要峰值。这些峰值发生在远离主要辐射方向的角度上，主要辐射方向被称为主瓣。理解旁瓣的概念对于设计高效的通信系统至关重要，因为它们可能导致干扰并降低系统的整体性能。为了说明旁瓣在现实应用中的重要性，考虑雷达系统的案例。雷达使用无线电波来检测物体及其距离。雷达波束的主瓣将能量集中在特定方向，从而允许对目标进行准确检测。然而，如果旁瓣水平过高，雷达可能会接收到来自意图外部源的虚假信号，导致数据的误解。这在军事应用中尤其成问题，因为精确性至关重要。此外，在无线通信中，旁瓣的存在可能导致同频干扰。当多个发射器在同一频率上工作时，一个发射器的旁瓣可能与另一个发射器的主瓣重叠，从而导致信号质量下降。工程师通常采用各种技术，例如波束形成和天线设计修改，以最小化旁瓣的影响，并增强天线的指向性。旁瓣在医疗成像中也扮演着重要角色，特别是在超声技术中。在超声成像中，主要目标是获得清晰准确的内部器官图像。然而，旁瓣的存在可能会在图像中产生伪影，导致潜在的误诊。为了应对这个问题，技术人员必须仔细校准超声设备并选择适当的频率，以确保旁瓣不会干扰生成的图像质量。总之，旁瓣的概念是许多技术领域的基本方面，包括雷达、无线通信和医疗成像。通过全面理解旁瓣，工程师和技术人员可以开发出更高效的系统，最小化干扰并提高性能。随着技术的不断进步，管理旁瓣的重要性只会增加，使其成为参与工程和应用科学人员的一个重要话题。