Research On The Key Technology Of A Two-way Communication Ranging Radio Station

Modern society developed rapidly in science and technology,communication technology has also been integrated into multiple technologies,but as humans have more complex,communication scenes are more complicated.In many scenarios,the requirements for communication terminal functions are no longer just real-time communication,and the communication device has the function of ranging positioning.Compared to traditional single-sent communication devices,the communication devices integrated with integrated communication bands are stronger,higher,and can be applied to military,aerospace,electric traffic,and The drone association is in the same field.However,due to the special communication scenarios in certain conditions,the communication devices that need to be satellite or the ground base station have their own limitations,making it easy to interrupted communication difficult,communication interruption,etc.Therefore,the study does not use the auxiliary communication equipment to perform real-time communication between the terminals,and the communication device is required to be a society.At the same time,the SOC platform itself has high integration,low power consumption,etc.is now one of the optimal choices of software radio now.In response to the above,this paper develops a two-way communication ranging radio station based on the AD9361 + SOC architecture,and the key technologies involved in the baseband signal processing of the radio system are studied and implemented,and the communication station is designed.Hardware platform.This paper first studied the principles of spread spectrum communications and two-way ranging technology.The chip selection and hardware platform of the two-way communication rack radio is followed,and a set of engineering samples is completed according to the design results.The key technique of the communication radio baseband signal generation and transmission is then studied,and the assembled signal structure and information frame content are designed,and signal modulation based on spread spectrum communication is implemented.Subsequently,the capture portion of the ranging signal in the receiving module is then employed in the ranging signal receiving end by the ranging signal receiving end.The tracking loop is analyzed,and the tracking loop of the ranging signal is determined by the carrier ring auxiliary code ring.Then,under the premise of stable tracking,the method design and ranging communication processing of the frame synchronization is completed.Finally,the overall system function indicator test experiment was performed on the engineering prototype of the communication station,and the information transmission between the two-way communication ranging station was completed,and the ranging results were analyzed.This thesis implements the real-time information transmission function and ranging functions between the two-way communication of the transceiver integrated.The experimental results show that the two-way communication station is still experiment at different distances,the mean error of the ranging results is a centimeter level,and the expected goal is achieved.