Digital Implementation Method of Baseband Signal Processing in Telemetry Receiver
Xiuzhong Zhang · Annals of Shanghai Astronomical Observatory Chinese Academy of Sciences · 2011
Based on the characteristics of the telemetric baseband signal received and processed by VLBI stations,the virtual radio technology was introduced to process the baseband signal in telemetry receiver in this paper.The digital implementation methods of three functional units in the receiver,including carrier demodulation,subcarrier demodulation and data transition tracking loop were described here.Indicated from the results of simulations and real data processing,virtual radio technology performs effectively with the demodulation and synchronization of the telemetry signal.In addition to the above,this kind of baseband signal processing system for the telemetry receiver can be revised easily,parallel programmed,can insert intermediate interfaces conveniently and so on,it will provide useful experimental and implemental platforms for telemetry,navigation,antenna arraying and other related systems.