Multi Access Interference(MAI)of Comprehensive Measuring Terminal
For whole distance measuring communication request of the hypersonic vehicle near space,multiple ground station and comprehensive measuring terminal compose a multi-user synchronous Code Division Multiple Access(CDMA)communication system.In the system,comprehensive measuring terminal is used as a Multiuser Detector.This method still exists MAI problem.Based on the study of the principle of the receiver,self-correlation function and cross-correlation function of the balance gold code,this thesis is to research several typical experiment,and gives a standpoint of the energy relation for multiuser detection(MUD)techniques.When multiple ground station meet the energy relation,multiple ground station and terminal can work together well even if terminal has no restraining MAI algorithm.
code division multiple accessmultiple target surveyingbalances gold codeself-correlation functioncross-correlation function
NETL
NSTL
万方数据
