6G • RAN
Target Velocity Ambiguity Resolver
High-Speed Dual-Pulse Ambiguity Elimination in Cellular Radar
Algorithm resolving mathematical ambiguities when measuring supersonic velocities with standard cellular pulse repetition frequencies.
Technical Explanation
In Integrated Sensing and Communication (ISAC), the radar waveform must adhere to cellular frame structures. Standard cellular symbol intervals can cause Doppler aliasing, where high-speed targets (like supersonic aircraft or high-velocity drones) produce ambiguous velocity readings that fold back onto lower Doppler bins. The Target Velocity Ambiguity Resolver transmits staggered multi-rate pulse bursts and utilizes Chinese Remainder Theorem phase unwrapping to resolve genuine target speeds up to Mach 3 unambiguously.
Key Functions
- Eliminates Doppler aliasing and velocity ambiguity on cellular radar systems
- Measures velocities accurately from stationary pedestrians up to Mach 3 aircraft
- Operates within standard 3GPP cellular radio frame timing structures
- Enhances airspace surveillance and counter-drone perimeter tracking
Specifications
IEEE Trans. Signal Processing, 3GPP TR 22.837 ISAC Evolution
Interfaces
ISAC Velocity EstimatorRadar Signal Processing Engine
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