Research And Design Of 60 GHz Millimeter Wave Wireless Communication System In Closed Environment

In recent years,with the continuous maturation of RF hardware,millimeter wave technology is widely used in a variety of fields,especially in instrument control,cabin control and personal area network and other closed wireless scenarios developed rapidly,in which 60 GHz wireless communication,with the unique advantages of anti-jamming,band clean and universal and rich bandwidth resources,gradually become one of the most promising communication technologies.Current research is mainly focused on RF hardware,channel modeling and feature analysis,modulation methods and beam space utilization techniques,etc,research on wireless communication system solutions is still lacking,and most of the existing system designs are based on hardware circuits of independent units and traditional communication schemes,which has characteristics of high costs,complex structures and poor system flexibility,etc.Many closed wireless environment often contains multiple transmission rate sources,in order to meet the needs of different rate communication methods,and to meet the new challenges of wireless communication such as short range,high quality,and channel confinement,this thesis researches and proposes a wireless communication system scheme of 60 GHz millimeter wave in a closed environment,including multiple baseband communication protocols,and successfully realizes point-to-point wireless communication based on digital keying modulation method.The research and work of this thesis includes the following main aspects:Firstly,conducted research on the research background and development situation of 60 GHz millimeter wave wireless communication technology,described the theoretical basis involved in the study of 60 GHz millimeter wave wireless communication system in a closed environment,including the channel propagation characteristics,transmitter and receiver principles,coding and decoding techniques,modulation and demodulation techniques in a closed environment with 60 GHz electromagnetic waves,then the wireless communication solutions in this thesis is analyzed and developed based on the theoretical support.Second,based on the solutions requirements to build a wireless communication system hardware platform,at first,completed the hardware resource evaluation,chip selection and power consumption evaluation and other preliminary preparatory work,then designed the power supply,clock,main co-processor,multi-communication protocol interface,memory and diagnostic circuit schematic,and finally completed the PCB layout drawing,punching board welding debugging and other work.Third,based on the completion of hardware circuit debugging for software program development,the program in the main processor FPGA implements the data processing of baseband signals,UART and SPI protocol communication;the program in the coprocessor ARM implements the initialization configuration of the system and Ethernet interface communication.Eventually,Fifth,the 60 GHz millimeter wave radio link designed in this thesis was tested by setting up an experimental environment,verify the functionality and performance of this wireless communication system in a closed channel,the test results all meet the expectations of the relevant indicators,delivered a reference value for subsequent research work.