EGNOS for Mobile Phones Technical Report.pdf EGNOS is a Space Based Augmentation System (SBAS) developed by the European Space Agency (ESA), the European Commission (EC) and Eurocontrol in order to augment GPS within Europe. The system utili

用于两维阵列天线求取方向图，通过改变天线数量来改变天线相关参数。(array antenna pattern)