radar altimeter and Doppler velocity sensor

简明释义

雷达高度表和多普勒速度传感器

英英释义

例句

1.The aircraft's landing system relies on the radar altimeter and Doppler velocity sensor for precise altitude measurements.

飞机的着陆系统依赖于雷达高度计和多普勒速度传感器进行精确的高度测量。

2.The radar altimeter and Doppler velocity sensor are crucial for automated landing systems in commercial jets.

在商用喷气式飞机的自动着陆系统中，雷达高度计和多普勒速度传感器至关重要。

3.The helicopter's navigation system uses a radar altimeter and Doppler velocity sensor to maintain stable flight.

直升机的导航系统使用雷达高度计和多普勒速度传感器来保持稳定飞行。

4.During the flight test, the engineers monitored the radar altimeter and Doppler velocity sensor outputs to ensure safety.

在飞行测试中，工程师监控了雷达高度计和多普勒速度传感器的输出以确保安全。

5.In bad weather, the radar altimeter and Doppler velocity sensor help pilots gauge their altitude accurately.

在恶劣天气中，雷达高度计和多普勒速度传感器帮助飞行员准确判断高度。

作文

In modern aviation and various fields of engineering, the precision of altitude measurement and velocity detection is crucial for safety and efficiency. One of the most important technologies used for these purposes is the radar altimeter and Doppler velocity sensor. The radar altimeter and Doppler velocity sensor plays a significant role in providing accurate data that is essential for navigation and control systems in aircraft and other vehicles. A radar altimeter operates by emitting radio waves towards the ground and measuring the time it takes for the waves to bounce back. This time delay allows the system to calculate the altitude of the aircraft above the terrain. Unlike traditional barometric altimeters, which can be affected by changes in atmospheric pressure, the radar altimeter provides a more reliable measurement, especially at low altitudes where precision is critical during landing and takeoff phases. On the other hand, the Doppler velocity sensor utilizes the Doppler effect to measure the speed of an object relative to the ground. When the sensor emits signals, it detects the frequency shift in the returned signals caused by the movement of the vehicle. This information is vital for determining the rate of descent or ascent, as well as horizontal speed. Together, the radar altimeter and Doppler velocity sensor offer a comprehensive solution for altitude and velocity measurement, significantly enhancing the safety and performance of flight operations.Furthermore, the integration of these two technologies into a single unit has revolutionized how pilots and engineers approach flight dynamics. The data provided by the radar altimeter and Doppler velocity sensor is not only used for real-time navigation but also for autopilot systems, allowing for smoother and safer flight experiences. For instance, during approaches to landing, the precise altitude readings from the radar altimeter enable pilots to make informed decisions regarding descent rates and landing configurations.Moreover, the advancements in technology have led to the development of more sophisticated versions of the radar altimeter and Doppler velocity sensor. Modern sensors are now equipped with advanced signal processing capabilities, which enhance their accuracy and reliability under various environmental conditions. These improvements are particularly beneficial in challenging weather scenarios, where visibility may be compromised. In addition to aviation, the applications of the radar altimeter and Doppler velocity sensor extend to maritime and automotive industries. In marine navigation, these sensors assist in determining the depth of water beneath vessels, which is crucial for safe navigation in shallow waters. Similarly, in the automotive sector, radar altimeters are employed in advanced driver-assistance systems (ADAS) to monitor vehicle height and assist with parking. In conclusion, the radar altimeter and Doppler velocity sensor is an indispensable technology in today's world, providing critical data for various applications. Its ability to deliver precise altitude and velocity measurements enhances safety and operational efficiency across multiple industries. As technology continues to evolve, we can expect further enhancements in the capabilities of the radar altimeter and Doppler velocity sensor, paving the way for even safer and more efficient transportation systems in the future.

在现代航空和各个工程领域，精确的高度测量和速度检测对于安全和效率至关重要。其中最重要的技术之一就是雷达高度计和多普勒速度传感器。雷达高度计和多普勒速度传感器在提供对导航和控制系统至关重要的数据方面发挥着重要作用，尤其是在飞机和其他交通工具中。雷达高度计通过向地面发射无线电波并测量波反弹所需的时间来工作。这种时间延迟使系统能够计算出飞机与地形之间的高度。与传统的气压高度计不同，后者可能会受到大气压力变化的影响，雷达高度计在低高度时提供更可靠的测量，这在着陆和起飞阶段至关重要。另一方面，多普勒速度传感器利用多普勒效应测量物体相对于地面的速度。当传感器发射信号时，它检测到返回信号中由于车辆运动而引起的频率偏移。这些信息对于确定下降或上升的速率以及水平速度至关重要。雷达高度计和多普勒速度传感器结合在一起，提供了一个全面的高度和速度测量解决方案，显著提高了飞行操作的安全性和性能。此外，将这两项技术整合到一个单元中，彻底改变了飞行员和工程师对飞行动力学的处理方式。雷达高度计和多普勒速度传感器提供的数据不仅用于实时导航，还用于自动驾驶仪系统，从而实现更平稳和安全的飞行体验。例如，在着陆接近阶段，来自雷达高度计的精确高度读数使飞行员能够就下降速率和着陆配置做出明智的决策。此外，技术的进步导致了更先进的雷达高度计和多普勒速度传感器版本的发展。现代传感器现在配备了先进的信号处理能力，提高了在各种环境条件下的准确性和可靠性。这些改进在挑战性的天气情况下特别有益，因为可见性可能受到限制。除了航空，雷达高度计和多普勒速度传感器的应用扩展到海事和汽车行业。在海洋导航中，这些传感器帮助确定船只下方的水深，这对于在浅水中安全航行至关重要。同样，在汽车行业，雷达高度计被用于先进的驾驶辅助系统（ADAS）中，以监测车辆高度并协助停车。总之，雷达高度计和多普勒速度传感器是当今世界不可或缺的技术，为各种应用提供关键数据。其提供精确的高度和速度测量能力提高了多个行业的安全性和运营效率。随着技术的不断发展，我们可以期待雷达高度计和多普勒速度传感器能力的进一步增强，为未来更安全、更高效的运输系统铺平道路。