Presentation on theme: "Team 1-B In association with National Weather Service: Radar Operations Center Presents WSR-88D Pedestal Simulator Final Demonstration."— Presentation transcript:
Team 1-B In association with National Weather Service: Radar Operations Center Presents WSR-88D Pedestal Simulator Final Demonstration
Team 1-B Gary Mobley – Configuration Manager Jonathan Moore - Project Manager Brian McCall – Correspondence Officer Usman Chughtai – Financial Officer
Requirements Accurate pedestal response –Achieved Softcopy of firmware –Provided Documentation –Provided Demonstration –Provided
Response Requirements System characteristics for step input: –Slightly underdamped response –Rise time ≤ 1 second –Percent Overshoot ≤ 10% –Settling time (±2%) ≤ 1.5 seconds –Steady state error ≤ 20%
Comm. Requirements Update position every 45 ms Must appear transparent to Open Radar Data Acquisition shelter
Product Description Pedestal Simulator runs on 68HC11 chip Simulates DCU and Pedestal Communicates serially with ORDA
Functional Block Diagram MAIN XMIT CALC ORDA Pedestal Simulator Microprocessor SCIR Serial Port
Key Features Commands Step Response Rate limits Elevation position limits Models pedestal response with second-order approximation
Difference Equation y[n] = y[n-1] + 0.7634 (y[n-1] – y[n-2]) + 0.037 (x[n-1] – y[n-1]) wherex[n-1] is DESIRED POSITION y[n-2] is OLD POSITION y[n-1] is CURRENT POSITION y[n] is NEW POSITION Multiplication subroutine built to handle both unsigned and signed multiplication.
Your consent to our cookies if you continue to use this website.