downlink

简明释义

英[ˈdaʊnlɪŋk]美[ˈdaʊnlɪŋk]

n. 下行线；向下链路；向地传输（数据信号等从人造卫星或航天器向地面传输）

英英释义

单词用法

同义词

反义词

例句

1.Its function is to route a downlink by means of the most efficient air-ground subnetwork.

它的职能是路线下行的手段最有效的空地子网。

2.The paper deeply studies the procedure of WCDMA Downlink receiver and describes the fundamentals of DS-CDMA receiver.

该文深入地研究了WCDMA下行接收过程，阐述了直扩CDMA系统接收机原理。

3.Figures 2-8 present the normalised downlink gains compared to the reference case mentioned above.

图2—8呈现的是与上述涉及到的参考实例相比之下的标准下行链路增益。

4.DFT is used to estimate the covariance matrix of downlink channel of the path, not calculating DOA.

在不求出DOA的情况下，采用离散傅里叶变换来估计该路径下行信道协方差矩阵。

5.Instead, the two technologies may end up being used together: Wi-Fi as the uplink, and FSO for the much faster downlink.

相反，这两类技术最终可能是共同存在：无线连接用于上传，无线光通信用于更高速的下载。

6.What is more worrying is that property prices are likely to immediately peaked and entered the downlink channel.

更令人担忧的是，物业价格有可能达到顶峰，并立即进入了下行通道。

7.For NASA TV streaming video and downlink information, visit.

美国航空航天局电视视频流和下行信息，请访问。

8.Real estate enterprise boom index downlink and implementation of the real estate deal.

房地产企业景气指数的下行当然和实施房地产新政有关。

9.Brutal facts tell us that love is all of the downlink.

残酷的事实告诉我们，所有的爱都是下行的。

10.The satellite's downlink allows for real-time data transmission to ground stations.

卫星的下行链路允许实时数据传输到地面站。

11.Engineers are testing the downlink frequency to ensure optimal performance.

工程师正在测试下行链路频率，以确保最佳性能。

12.During the mission, the astronauts monitored the downlink for any anomalies.

在任务期间，宇航员监控下行链路以查看是否有任何异常。

13.The downlink bandwidth needs to be sufficient for high-definition video streaming.

下行链路带宽需要足够用于高清晰度视频流。

14.A stable downlink connection is crucial for remote sensing applications.

稳定的下行链路连接对于遥感应用至关重要。

作文

In today's world, communication technology plays a crucial role in our daily lives. One of the key components of this technology is satellite communication, which relies heavily on the concept of downlink. The term downlink refers to the transmission of data from a satellite or space vehicle to a ground station. This process is essential for various applications, including weather forecasting, television broadcasting, and global positioning systems (GPS). Understanding how downlink works can help us appreciate the complexities of modern communication systems. To begin with, let us explore the significance of downlink in satellite communications. Satellites orbiting the Earth are equipped with advanced technology that allows them to collect and transmit data. When a satellite gathers information, it sends this data back to Earth through a downlink signal. This signal travels at the speed of light, ensuring that the information reaches the ground station quickly. For instance, meteorological satellites use downlink technology to send real-time data about weather patterns, enabling meteorologists to make accurate forecasts and issue timely warnings. Moreover, downlink is not limited to weather satellites; it is also crucial for television broadcasting. Satellite television providers rely on downlink signals to deliver content to viewers. When a satellite transmits a television signal, the data is sent via a downlink to a dish installed at the viewer's location. This technology has revolutionized the way we consume media, providing access to a wide range of channels and programming options. In addition to its role in broadcasting, downlink technology is vital for navigation systems like GPS. GPS satellites continuously transmit signals to receivers on Earth, allowing users to determine their precise location. The downlink signals from these satellites are critical for the accuracy and reliability of navigation services, which have become indispensable for travelers and logistics companies alike. However, the effectiveness of downlink communication can be affected by various factors, such as atmospheric conditions and interference from other signals. Engineers and scientists are continually working to improve the technology associated with downlink to ensure that data transmission remains stable and reliable. Innovations in antenna design, signal processing, and error correction techniques are some of the areas being explored to enhance downlink performance. In conclusion, the concept of downlink is integral to the functioning of satellite communication systems. From weather forecasting to television broadcasting and GPS navigation, downlink technology enables the seamless flow of information between satellites and ground stations. As technology continues to advance, the importance of downlink will only grow, paving the way for new applications and improved communication methods. Understanding downlink is essential for anyone interested in the field of telecommunications, as it highlights the intricate processes that underpin our ability to connect and communicate in an increasingly digital world.

在当今世界，通信技术在我们的日常生活中发挥着至关重要的作用。这个技术的关键组成部分之一是卫星通信，它在很大程度上依赖于下行链路的概念。术语下行链路指的是从卫星或航天器向地面站传输数据的过程。这个过程对各种应用至关重要，包括天气预报、电视广播和全球定位系统（GPS）。理解下行链路的工作原理可以帮助我们欣赏现代通信系统的复杂性。 首先，让我们探索下行链路在卫星通信中的重要性。环绕地球运行的卫星配备了先进的技术，使它们能够收集和传输数据。当卫星收集到信息时，它通过下行链路信号将这些数据发送回地球。这个信号以光速传播，确保信息迅速到达地面站。例如，气象卫星利用下行链路技术发送实时天气模式数据，使气象学家能够做出准确的预测并及时发布警报。 此外，下行链路不仅限于气象卫星；它对电视广播也至关重要。卫星电视提供商依赖于下行链路信号将内容传递给观众。当卫星传输电视信号时，数据通过下行链路发送到安装在观众位置的天线。这项技术彻底改变了我们消费媒体的方式，使我们能够接触到各种频道和节目选项。 除了在广播中的作用外，下行链路技术对于导航系统如GPS也是至关重要的。GPS卫星不断向地球上的接收器发送信号，使用户能够确定其精确位置。这些卫星的下行链路信号对导航服务的准确性和可靠性至关重要，这对旅行者和物流公司来说已变得不可或缺。 然而，下行链路通信的有效性可能会受到各种因素的影响，例如大气条件和其他信号的干扰。工程师和科学家们正在不断努力改善与下行链路相关的技术，以确保数据传输保持稳定可靠。天线设计、信号处理和错误校正技术等创新是一些正在探索的领域，以增强下行链路的性能。 总之，下行链路的概念对于卫星通信系统的运作至关重要。从天气预报到电视广播，再到GPS导航，下行链路技术使得卫星与地面站之间的信息流畅通无阻。随着技术的不断进步，下行链路的重要性只会增加，为新的应用和改进的通信方法铺平道路。理解下行链路对任何对电信领域感兴趣的人来说都是必不可少的，因为它突显了支撑我们在日益数字化的世界中连接和沟通的复杂过程。