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Use of FOS to Improve Airborne Radar Target Detection of other Aircraft

Example PDS Presentation for EEE 455 / 457 . Preliminary Design Specification Presentation. Use of FOS to Improve Airborne Radar Target Detection of other Aircraft . Example PDS Presentation for EEE 455 / 457 . Aim.

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Use of FOS to Improve Airborne Radar Target Detection of other Aircraft

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  1. Example PDS Presentation for EEE 455 / 457 Preliminary Design Specification Presentation Use of FOS to Improve Airborne Radar Target Detection of other Aircraft Example PDS Presentation for EEE 455 / 457

  2. Aim • Show Preliminary Design using Fast Orthogonal Search Algorithm to Improve Airborne Radar Detection of other Aircraft Target • Approval to continue

  3. Motivation • To see how we plan to implement your project • To show you the interface level of our design

  4. Outline • The ‘Big’ Picture • Our Project • Existing System Architecture • The Requirements • The Design • Schedule • Risks • Summary • Conclusion • Questions

  5. Pulsed Doppler / Coherent Pulsed Radar fD Gnd A Scope Display fD Tgt Target fD Gnd fD Tgt Radar Receives P S D Ground Return Frequency Amplitude Range Frequency (GHz) BW The ‘Big Picture’ Intercept of Low Flying Target Mode Beam Pattern Pulse 40 Soft or Hardware Filter Bank

  6. The ‘Big Picture’ and Our Project Antenna Power Exciter Duplexer Transmitter PW & PRF Display Pulsed Doppler / Coherent Rx Protection Radar Data Processor Receiver fD Gnd Beam Steering Control fD Tgt fD Gnd fD Tgt Radar Receives P S D Frequency Frequency (GHz) BW 40 Intercept of Low Flying Target Filter Bank Mode Beam Pattern Pulse Our Proposed Implementation Software Filter Bank Fast Orthogonal Search Algorithm In RDP Most Common Implementation Software Filter Bank Fast Fourier Transform In RDP

  7. The ‘Big Picture’ and our Project Antenna Power Exciter Duplexer Transmitter PW & PRF Display Rx Protection Radar Data Processor Receiver Beam Steering Control • Major Constraint • No Airborne Radar Available To Work On • Alternative • Use Army MSTAR Anti Personal / Vehicle Radar to Emulate Airborne Radar • Has the Same Architecture and Pulsed Doppler Processing • Small enough to work on in Lab • We have one for free • Will adequately demonstrate the project principle and Design Our Proposed Implementation Software Filter Bank Fast Orthogonal Search Algorithm In RDP Most Common Implementation Software Filter Bank Fast Fourier Transform In RDP

  8. Requirements Antenna Power Exciter Duplexer Transmitter PW & PRF Display Rx Protection Radar Data Processor Receiver Beam Steering Control • Requirements • Main Functional Requirements • Be compatible with a modern software driven Canadian Military radar system • Use the same signal interface as the existing radar • Performance Requirements • Detect lower S/N targets • Maintain the same processing time as FFT from detection to display • Provide better frequency resolution with the same or fewer samples than the existing FFT • Limitations • Demonstrate on MSTAR Radar • Software tool ABDA to program and run code before putting into radar • Lowest Cost Possible (limit $200)

  9. Antenna Power Exciter Duplexer Transmitter PW & PRF Display Rx Protection Radar Data Processor Receiver Beam Steering Control Project Interface Requirements Interfaces Inputs and Outputs Radar Data Processor Heading Avionics FCS FOS Filter bank Pitch Angle Bank Angle Amplitude Heading Air Speed Range, Velocity, Angle Tracking Frequency FFT Filter bank Pulse Width Pitch Angle Bank Angle Amplitude PRF Air Speed 1553 databus msg to display Altitude Frequency Altitude Data Stream Transmitter Pulse Width PRF Data Stream Receiver Covariance Matrix G Analog to Digital Converter

  10. Design Process • Spiral Approach (Supervisor guided trial & error) • Believe we will need 3 iterations • Suggested by supervisor as we have no experiece • “Explain Why” (What will be done in each iteration) • 1. Read the data stream digital parameters and make a FOS work • 2. Det FOS and data parameters to meet min requirements • 3. Make FOS meet all requirements

  11. Project Time Line EVENTS Major work items Critical Path No Go Events and Dates Hell Week Receive Hardware Dates Money Deadlines Radar Data Processor Heading Range & Angle Tracker Pitch Angle FOS Filter bank Bank Angle Amplitude Velocity 1553 databus msg to display Frequency Pulse Width PRF Altitude Parsing Covariance Matrix G ENG Project

  12. Risk Assessment • Risks • Interface Issues • Underestimated complexity • Do you have to learn the interfaces without documentation • Schedule Issues • Too Aggressive? • Equipment Issues • Do we own the equipment • Is there a reason it could arrive too late • Software Tools • Do you have to learn a new software tool? • Design Approach Issues • Mitigations • Assess each and have options and plans to deal with each

  13. Example Summary • Problem – Improve Radar Target Detection With FOS • Use a small land radar with same processing to emulate the airborne radar • Implement a FOS algorithm instead of an FFT • Main Requirement is “Replacement Fit” with lower SNR detection and faster performance • Spiral Design Approach • Schedule • Risk Assessment

  14. The Conclusion • Problem • Improve Radar Detection With FOS • Have a Plan and Design • Know the interfaces • Seeking Approval to Continue

  15. Questions

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