通信系统概论

无线通信讲义，AI概述，微波通信，卫星通信，GPS全球定位系统，卷积神经网络，移动通信系统，5G，Cognitive Radio (CR): is a radio that can be programmed and configured dynamically to use the best wireless channels in its vicinity to avoid user interference and congestion. Such a radio automatically detects available channels in wireless spectrum, then accordingly changes its tra nsmission or reception parameters to allow more concurrent wireless communications in a given spectrum band at one location. This process is a form of dynamic spectrum management. nsmission or reception parameters to allow more concurrent wireless communications in a given spectrum band at one location. This process is a form of dynamic spectrum management.