secondary radar

简明释义

二次雷达

英英释义

例句

1.The air traffic control tower relies on secondary radar 二次雷达 to track the aircraft's altitude and speed.

空中交通管制塔依赖于二次雷达来跟踪飞机的高度和速度。

2.The secondary radar 二次雷达 system enhances the visibility of aircraft in crowded airspace.

在拥挤空域中，二次雷达系统增强了飞机的可见性。

3.The use of secondary radar 二次雷达 allows for more accurate tracking of transponder-equipped aircraft.

使用二次雷达允许对装备应答器的飞机进行更精确的跟踪。

4.During the flight, the pilot received updates from secondary radar 二次雷达 indicating nearby flights.

在飞行过程中，飞行员从二次雷达接收到附近航班的更新信息。

5.Unlike primary radar 初级雷达, which detects reflections, secondary radar 二次雷达 communicates directly with the aircraft.

与检测反射的初级雷达不同，二次雷达直接与飞机通信。

作文

In the world of aviation, accurate tracking and communication are crucial for ensuring safety and efficiency. One of the key technologies that play a significant role in this domain is secondary radar. Unlike primary radar, which relies on the reflection of radio waves off an object to determine its position, secondary radar operates on a different principle. It involves the use of transponders installed on aircraft that respond to signals sent by ground-based radar systems. This interaction allows for more precise identification and tracking of aircraft in the sky.The importance of secondary radar cannot be overstated. In busy airspaces, where numerous flights operate simultaneously, having a reliable method to distinguish between different aircraft is essential. The transponder on an aircraft not only provides its location but also transmits additional information such as altitude, speed, and even the flight number. This data is invaluable for air traffic controllers, enabling them to manage the flow of air traffic efficiently and safely.Moreover, secondary radar enhances the overall situational awareness of pilots and air traffic controllers. With the information provided by the transponder, controllers can make informed decisions about routing, spacing, and potential conflicts between aircraft. This capability significantly reduces the risk of mid-air collisions and improves the overall safety of air travel.Another advantage of secondary radar is its ability to function in adverse weather conditions. Primary radar can sometimes struggle with heavy rain or storms, leading to inaccurate readings. However, because secondary radar relies on the transponder’s response, it can maintain accuracy even when the primary radar may face challenges. This reliability is particularly important during critical phases of flight, such as takeoff and landing.Furthermore, secondary radar plays a vital role in search and rescue operations. When an aircraft encounters trouble, it can activate its emergency transponder, which sends out distress signals. This feature allows rescue teams to pinpoint the aircraft's location quickly, potentially saving lives in critical situations.Despite its advantages, secondary radar is not without its limitations. For instance, it requires the presence of a functioning transponder on the aircraft. If an aircraft does not have a transponder, it will not be visible on secondary radar, which could pose risks in certain scenarios. Additionally, while secondary radar provides detailed information about aircraft, it does not offer information about non-transponder-equipped objects, such as some drones or general aviation aircraft.In conclusion, secondary radar is an essential technology that significantly enhances the safety and efficiency of air travel. Its ability to provide accurate, real-time data about aircraft positions and movements makes it indispensable in modern aviation. As air traffic continues to grow, the reliance on advanced technologies like secondary radar will only increase, ensuring that the skies remain safe for all travelers. Understanding how secondary radar works and its importance in aviation can help us appreciate the complexities involved in managing air traffic and the innovations that keep our skies secure.

在航空领域，准确的跟踪和通信对于确保安全和效率至关重要。一个在这个领域发挥重要作用的关键技术就是二次雷达。与依靠物体反射的无线电波来确定其位置的初级雷达不同，二次雷达运作的原理有所不同。它涉及在飞机上安装应答器，这些应答器会响应地面雷达系统发送的信号。这种互动使得对空中飞机的更精确识别和跟踪成为可能。二次雷达的重要性不容小觑。在繁忙的空域中，众多航班同时运行，拥有一种可靠的方法来区分不同的飞机至关重要。飞机上的应答器不仅提供其位置信息，还传输其他信息，如高度、速度甚至航班号。这些数据对空中交通管制员来说是无价的，使他们能够高效、安全地管理空中交通流量。此外，二次雷达增强了飞行员和空中交通管制员的整体态势感知。通过应答器提供的信息，管制员可以就航线、间隔和潜在冲突做出明智的决策。这种能力显著减少了空中碰撞的风险，提高了航空旅行的整体安全性。二次雷达的另一个优势是它能够在恶劣天气条件下工作。初级雷达在大雨或风暴中有时会出现读数不准确的情况。然而，由于二次雷达依赖于应答器的响应，即使在初级雷达可能面临挑战的情况下，它也能保持准确性。这种可靠性在飞行的关键阶段，诸如起飞和着陆期间尤其重要。此外，二次雷达在搜救行动中也发挥着至关重要的作用。当飞机遇到麻烦时，它可以激活紧急应答器，发送求救信号。这个功能使救援团队能够快速定位飞机的位置，在关键情况下可能拯救生命。尽管有其优势，二次雷达也并非没有局限性。例如，它需要飞机上有一个正常工作的应答器。如果一架飞机没有应答器，它将无法在二次雷达上显示，这在某些情况下可能会带来风险。此外，虽然二次雷达提供关于飞机的详细信息，但它无法提供关于没有应答器的物体的信息，例如某些无人机或一般航空飞机。总之，二次雷达是一项重要的技术，显著增强了航空旅行的安全性和效率。它提供关于飞机位置和运动的准确实时数据，使其在现代航空中不可或缺。随着空中交通的不断增长，对像二次雷达这样的先进技术的依赖只会增加，以确保天空对所有旅行者的安全。理解二次雷达的工作原理及其在航空中的重要性，可以帮助我们欣赏管理空中交通所涉及的复杂性以及保障我们天空安全的创新。