Adaptive Beam Forming Super DARN

科迪亚克超级双极光雷达网(SuperDARN)是一个用于研究高纬度极光环境的国际科学雷达项目。该雷达探测高纬度地区大量产生的电离层等离子体不规则性的回波。这些等离子体不规则性也分散了其他雷达的信号，干扰了它们的正常运行。极光杂波是高纬度地区的一个主要问题。该项目将导致在雷达发射机的每个部件上安装直接数字合成器。这将使波束图案的形成和传输成为可能，这种波束图案可以设计成适合实验目的或环境条件。这些实验将确定是否有可能减轻极光等离子体对雷达接收的影响，并能够区分不同于背景电离层散射的信号。

The Kodiak Super Dual Auroral Radar Network (SuperDARN) is an international project of scientific radars used for studies of the high-latitude auroral environment. The radar detects echoes from irregularities of the ionospheric plasma, which are generated in abundance in the high-latitude regions. These plasma irregularities also scatter the signals of other radars and interfere with their normal operation. Auroral clutter is a major problem in high-latitude regions. This project would lead to the installation of direct digital synthesizers on each element of the radar transmitters. This will enable the formation and transmission of a beam pattern that can be designed to suit either experimental aims or environmental conditions. The experiments will determine whether or not it is possible to mitigate the effect of the auroral plasma on radar reception, as well as enable the discrimination of signals different from the background ionospheric scatter.