PCB noise visualization system

This project intents to visualize noises generated by electronic components or migrated through traces on Printed Circuit Board in a 3D user interactive format by measuring PCB's near field using motor moved electrical field probe. It is created to solve the problem of finding unknown noise sources on Printed Circuit Board during electronic design prototyping process. The system involves designs off line-powered power supplies, motor controller, analog front-end, FPGA data processing software, post data processing software, user interface, and system controller. Designs involve using motor control theorem, Super-heterodyne conversion, oversampling, IQ demodulation, Hilbert transform, and python OpenGL graphics.