Digital Sonar ProjectDigital Sonar ProjectBrian Wong, Zhen Li, Bryan Morrissey6.111 Digital Systems LaboratorySonar Detector ProjectOverview Block DiagramOverview Block DiagramDivision of Labor:•Bryan Morrissey – Data Acquisition Block•Zhen Li – Signal Analyzer Block•Brian Wong – User Interface Block6.111 Digital Systems LaboratorySonar Detector ProjectBlock DiagramData Acquisition BlockData Acquisition BlockIf time permits…•RS-232 Serial Interface to download raw data•Alternative raw data display mode6.111 Digital Systems LaboratorySonar Detector ProjectBlock DiagramData Acquisition SystemData Acquisition System6.111 Digital Systems LaboratorySonar Detector ProjectSignal AnalyzerSignal AnalyzerIf time permits…•Anti-shaking–LPF for small vibrations•Width of objects–Extract from the width of reflected wave packages6.111 Digital Systems LaboratorySonar Detector ProjectBlock DiagramDoneStarta1, b1, a2, b2BRAMWave Package DetectorDirection SweeperCoordinate RetrieverParameter ManagerAnti-shakingt1, t2Controllerdtx, yreprogramSignal AnalyzerSignal Analyzer•Wave Package Detector–Determine groups of reflected wave•Direction Sweeper–Shift adder, oversampled–Peak detector•Coordinate Retriever•Parameter Manager–Normal mode–Calibration mode•Controller–Manage ready/done signals6.111 Digital Systems LaboratorySonar Detector ProjectReceived signalsr=v2td=a1tdb1cosθ=vdtΔ =a2tΔ b2Shifted signals (1 block)Project User InterfaceProject User InterfaceKey Features:•Angular distance indicator•Object coloring and size•Sonar scope simulation•Sound generator•Motion detection•Speed estimationTesting Features:•Calibration mode•Debugging mode for incoming signalsImprovements:•Object tracking in memory•Motion alarm6.111 Digital Systems LaboratorySonar Detector ProjectSuggested Look and Feel of User Interface on VGA output.Project User InterfaceProject User Interface6.111 Digital Systems LaboratorySonar Detector ProjectProject TimelineProject Timeline6.111 Digital Systems LaboratorySonar Detector Project•By Thanksgiving:–Brian W: Basic Functional UI for Testing–Bryan M: Functional ADC, FIR Filter Code and BRAM buffering, also provide preliminary data to test other modules–Zhen Li: Basic Signal Analysis Functionality•Nov 25 – Dec 1:–Module Testing–Implement full feature sets as time allows–Fabricate full set of interface circuitry•Dec 2 – Dec 8: System Integration•Dec 9 -Dec 12: Last Minute
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