Eight Channels Array Signal Simulation Device System Design And Implementation

By analysis of the intermediate frequency signals which through eight antennae and receiver channels, eight channels radio spatial spectrum direction finding system can reach the purpose of finding radio direction. To conduct system verification and performance test, we needed to design an eight channels array signal simulation device.Based on the theory of array signal simulation, this thesis made a model of eight channels array signal and conducted simulations and verifications. Then the thesis analyzed noise's influence on angle precise of simulated signal and gave some primary principles which should be followed in the system design. Also we decided the scheme and architecture of eight channels array signal simulation device system on the base of system demand analysis, finished the PCB board design, hardware circuit implementation, driver design. Finally we measured the performance of the system, analyzed phase error's influence on angle precision of simulated signal and gave the solution.At the end of the thesis a summary about this thesis was given and works in the future were present.