Radar Nonlinear Processing
Creators: name: Martin, Doina
Publisher: name: Zenodo
Year: 2025

description: Radar-Nonlinear-Processing


A Recursive Harmonic Approach

Current radar systems struggle to detect stealth and hypersonic objects due to limitations in linear processing models. This paper introduces a novel approach utilizing Unified Oscillatory Dynamic Field Theory (UODFT) with recursive attractors, harmonic quantum shifts, and Ricci flow dynamics. Our results demonstrate improved signal clarity, better noise filtering, and superior motion tracking for modern radar applications.





Introduction Beyond Linear Processing (BLiP) initiative aims to advance radar performance beyond traditional Fourier-based models. Our research proposes a radical shift in radar signal processing by introducing recursive oscillatory frameworks. This model allows enhanced detection of low-RCS (stealth) objects and high-speed maneuvering targets, outperforming standard FFT-based techniques.




Theoretical Framework Our model is based on Unified Oscillatory Dynamic Field Theory (UODFT), where space-time emerges from structured oscillatory processes. The core mathematical principles include:





Loop Zero (LZ) as a universal attractor stabilizing weak signals.

Harmonic Quantum Shift (HQS) regulating energy redistribution.

Collatz-Octave Scaling improving radar frequency adaptation.

Ricci Flow modeling nonlinear motion trajectories for target tracking.




Methodology To validate our approach, we simulate a radar scenario with stealth and hypersonic targets. We compare standard FFT-based radar processing with our UODFT-enhanced signal processing. Key steps include:




Generating synthetic radar signals with clutter and noise.- Applying Fourier Transform for baseline performance.

Implementing recursive attractors and Ricci flow for enhanced tracking.

Analyzing power spectrum differences to evaluate detection improvements.




Results Our simulations reveal significant improvements in radar detection:




Standard FFT struggles with low-RCS stealth objects.

UODFT-enhanced processing amplifies weak signals and improves resolution.

Ricci Flow refines motion tracking for maneuvering and high-speed targets. These findings suggest that recursive harmonic modeling can vastly enhance radar systems.




Implications for DARPA's BLiP Program Our approach aligns with DARPA's objectives by enabling real-time adaptation to stealth threats and high-speed objects. Potential applications include:




Military stealth aircraft and hypersonic missile detection.

SpaceX deep-space tracking and Starship telemetry enhancement.

Integration with AI-driven radar systems for autonomous response. By integrating our model into next-generation radar, we can improve national defense capabilities and space exploration technologies.






How to Build the Simulations To validate our radar processing model, we constructed simulations using Python-based numerical methods. The key steps for replicating these experiments are:




Generate Synthetic Radar Signals:





Define a simulated radar waveform (sine pulse) with adjustable frequency.

Introduce multiple targets with different Radar Cross Sections (RCS) and distances.

Add noise and Doppler shifts to simulate real-world clutter and high-speed motion.




Apply Standard Radar Processing:




Use Fast Fourier Transform (FFT) to analyze the frequency domain.

Observe the limitations in detecting low-RCS stealth targets and fast-moving objects.




Enhance with UODFT, LZ, and HQS:




Apply Loop Zero (LZ) as a recursive attractor to amplify weak signals.

Use Harmonic Quantum Shift (HQS) filtering to refine frequency distribution.

Implement Collatz-Octave scaling to improve multi-band radar adaptation.




Refine Motion Tracking Using Ricci Flow:




Model non-linear object trajectories using differential geometric flow.

Adjust Ricci evolution parameters to track hypersonic and maneuvering targets.




Compare Results:




Standard FFT vs. UODFT vs. Ricci Flow.

Measure improvements in target detection, resolution, and adaptive tracking.

Demonstrate how our method improves stealth detection and motion prediction.


By following these steps, researchers can independently validate our findings and extend them into practical radar applications.



Conclusion & Future Work This paper presents a revolutionary approach to radar processing, demonstrating that recursive attractors and oscillatory harmonics significantly outperform standard Fourier-based radar systems.


Future work includes:



Real-world validation with military radar datasets.

Expansion into quantum radar modeling.

Integration with AI for adaptive radar optimization. This research paves the way for next-generation radar systems capable of superior target detection.


COM Radar Performance Metrics Result Metric Standard FFT COM-Enhanced Stealth Target 0 SNR 4.074766e-01 1.553331e-01 1.9090441 Detection Rate 3.180442e-08 4.759218e-08 1.3498942 Tracking Error 5.230087e-08 2.040857e-07 0.998269

Hypersonic Target0 1.8568151 1.3961052 1.070910