Research And Design Of Network Analyzer's Data Processing And Display System Based On MSP430

Vector network analyzer is a kind of intelligent instrument that used to measure the amplitude-frequency and angle-frequency of port network or system.It's comprised of four part:signal source,measure device,receiver set and microprocessor.This paper researches and designs a kind of vector network analyzer based on MSP430. Firstly, it discusses the study value and base theory of network analyzer.Secondly, it introduces the overall plan of this system.What's more, this essay gives detail introduction of two sections, which point to data-processing and interface between human and instrument.Finally, it gives the debugging result and illustration.Besides these, it gives summary and forecast to this study.The section of data-processing mainly means software algorithm design.To combine about theory knowladge, this paper priority introduces every processing about the original measure data which obtain from the receiver set before display.One side, the system converse reasonable datas from original data.It discusses on the program design of conversion formula.The other side, to eliminate the system error of instrument, it corrects the measure results by calibration.The hardware section of interface adopts the MCU MSP430F149 to control color LCD.The paper introduces the design of related circuit and gives the segments of system's power and restart.The software design is divided into two parts.On the one part, on the aspect of display design, it gives the process of displaying kinds of character and curve lines on the LCD.In addition,it improves the design algorithm in it.On the other part, on the aspect of user's interface design,the system responds to kinds of panel keys.