radar cross section

简明释义

雷达截面积

英英释义

例句

1.Military applications often require a thorough analysis of the radar cross section 雷达横截面 of various targets.

军事应用通常需要对各种目标的雷达横截面 雷达横截面进行全面分析。

2.The radar cross section 雷达横截面 of a missile can significantly affect its ability to evade radar systems.

导弹的雷达横截面 雷达横截面可以显著影响其躲避雷达系统的能力。

3.The stealth technology of modern aircraft is designed to minimize their radar cross section 雷达横截面 to avoid detection.

现代飞机的隐身技术旨在最小化它们的雷达横截面 雷达横截面以避免被探测。

4.Engineers use computer simulations to predict the radar cross section 雷达横截面 of new designs before physical prototypes are built.

工程师使用计算机模拟来预测新设计的雷达横截面 雷达横截面，在制造物理原型之前。

5.Reducing the radar cross section 雷达横截面 of naval vessels is crucial for enhancing their survivability in combat.

降低海军舰艇的雷达横截面 雷达横截面对提高其在战斗中的生存能力至关重要。

作文

The concept of radar cross section is crucial in the fields of radar technology and stealth design. Essentially, the radar cross section refers to a measure of how detectable an object is by radar. It quantifies the amount of electromagnetic energy that is reflected back to the radar receiver from a target object. The larger the radar cross section, the more easily the object can be detected. This parameter is particularly significant in military applications, where stealth technology aims to minimize the radar cross section of aircraft and other vehicles to avoid detection by enemy radar systems.Understanding the radar cross section involves a blend of physics and engineering principles. It is influenced by several factors, including the size, shape, and material of the object. For instance, a flat surface oriented directly towards the radar source will have a higher radar cross section than an irregularly shaped object. This is why stealth aircraft are designed with angular shapes and special materials that absorb radar waves rather than reflect them. These designs help reduce the radar cross section, making it harder for radar systems to detect these aircraft.Moreover, the radar cross section can vary depending on the frequency of the radar waves used. Different materials interact with radar waves differently, and adjustments in frequency can lead to changes in how an object’s radar cross section is perceived. Engineers must consider these variations when designing radar-evading technologies.In civilian applications, understanding the radar cross section can also play a role in air traffic control and aviation safety. For example, commercial aircraft are designed with a sufficient radar cross section to ensure they are easily detectable by air traffic controllers. This is crucial for maintaining safe distances between aircraft in busy airspace.The measurement of radar cross section is typically expressed in square meters. A small drone might have a radar cross section of less than one square meter, while a large military aircraft could have a radar cross section of several hundred square meters. These measurements are vital for assessing the effectiveness of radar systems and the likelihood of detecting various objects.As technology advances, the importance of radar cross section continues to grow. Innovations in materials science, such as metamaterials, are being explored to create even more effective stealth technologies. These materials can manipulate electromagnetic waves in novel ways, potentially leading to significantly reduced radar cross section values.In conclusion, the radar cross section is a fundamental concept in radar technology that plays a critical role in both military and civilian applications. By understanding and manipulating this parameter, engineers and scientists can improve the effectiveness of radar systems and enhance the stealth capabilities of various vehicles. As we move forward into an era of advanced technology, the study of radar cross section will undoubtedly remain a key area of focus for researchers and developers alike.

“雷达散射截面”的概念在雷达技术和隐形设计领域至关重要。基本上，雷达散射截面指的是一个物体被雷达探测的可检测性测量。它量化了从目标物体反射回雷达接收器的电磁能量的数量。雷达散射截面越大，物体被探测的可能性就越高。这一参数在军事应用中尤其重要，因为隐形技术旨在最小化飞机和其他车辆的雷达散射截面，以避免被敌方雷达系统探测。理解雷达散射截面涉及物理学和工程学原理的结合。它受到多个因素的影响，包括物体的大小、形状和材料。例如，直接朝向雷达源的平坦表面将具有比不规则形状物体更高的雷达散射截面。这就是为什么隐形飞机的设计采用了角度形状和特殊材料，这些材料能够吸收雷达波而不是反射它们。这些设计有助于减少雷达散射截面，使得雷达系统更难以探测这些飞机。此外，雷达散射截面还会根据使用的雷达波频率而变化。不同的材料与雷达波的相互作用不同，频率的调整可能导致物体的雷达散射截面感知发生变化。工程师在设计抗雷达技术时必须考虑这些变化。在民用应用中，理解雷达散射截面也可以在空中交通管制和航空安全中发挥作用。例如，商业飞机的设计具有足够的雷达散射截面，以确保它们被空中交通管制员轻松探测到。这对于在繁忙的空域中保持飞机之间的安全距离至关重要。雷达散射截面的测量通常以平方米为单位。一个小型无人机的雷达散射截面可能不到一平方米，而一架大型军用飞机的雷达散射截面可能达到几百平方米。这些测量对于评估雷达系统的有效性和探测各种物体的可能性至关重要。随着技术的进步，雷达散射截面的重要性继续增长。材料科学中的创新，例如超材料，正在被探索以创造更有效的隐形技术。这些材料可以以新颖的方式操控电磁波，可能导致显著降低的雷达散射截面值。总之，雷达散射截面是雷达技术中的一个基本概念，在军事和民用应用中都发挥着关键作用。通过理解和操控这一参数，工程师和科学家可以提高雷达系统的有效性，并增强各种车辆的隐形能力。随着我们进入一个先进技术的时代，对雷达散射截面的研究无疑将继续成为研究人员和开发者关注的重点领域。