Design On Remainder Detection System For Aerospace Controller

Aerospace controller is one kind of aerospace equipments. It plays a centralrole in the ignition system, communication system, guided system and displaysystem of satellites and rockets. Its reliability is very important for the reliabilityof aerospace system. There’s a lot of link that can bring in the remainders, such asproduction, manufacture, transportation and debugging. These remainders pose aserious threat to the reliability o f aerospace controller. To improve the reliabilityof aerospace controller, this dissertation has done a deep research in remainderdetection system.There have been a lot of research results in remainder detection of electroniccomponents, but no one has done special research on rema inder detection ofaerospace controller. The MORET-300remainder detection system made in2010used hand-style turntable to drive the load, and it ma inly had two disadvantages:first, it couldn’t provide a big acceleration to the load, so the detection precisionwas limited; second, the turntable couldn’t be controlled automatically.This dissertation improved the hand-style turntable of MORET-300throughselecting the motor and designing transmission mechanis m. Then it designed thehardware and software according to the feature of the remainder signa l. Thehardware design contained three parts: first, selected the sound sensor andacceleration sensor to transform the signal; second, designed the s ignal modulatingcircuit; third, designed data acquisition circuit. The software design included twopart: first, used C language and Verilog language to write Lower PC code, second,used VC++and MATLAB to finish the PC program.The aerospace controller signal was nonlinear and non-stationary signa l. Thisdissertation has put forward a remainder detection method based on Hilbert-HuangTransform which had a strong ability to process the nonlinear and non-stationarysigna l. At first it used Empirical Mode Decomposition to calculate the Intrins icMode Function, then did the Hilbert Transform to the Intrinsic Mode Function, atlast observed the feature of the rema inder through the Hilbert Spectrum. Theresults of experiments showed that the rema inder detection precis ion of theaerospace controller rema inder detection system designed in this dissertation wasmore than90%, furthermore the resolution of the remainder achieved designindex.