Chapter 3: Adaptive Antenna Array Theory and Technology

With the continuous growth of information in today’s society, the rapid development of the global communications, and the rapid expansion of the personal mobile communication business, the contradiction between limited spectrum resources and increasing system capacity requirements is increasingly prominent. Meanwhile, problems such as multipath interference, multiple access interference, and channel fading widely exist in actual communication systems and also have a serious impact on system performance and capacity. The adaptive array antenna based on the wireless channel property and the array signal processing method can flexibly and efficiently utilize the spatial resources by controlling the antenna beam. It can resist fading and interference, improve spectrum utilization, and expand the system capacity while ensuring communication quality…