6G • RAN
Bistatic ISAC
Separated Transmitter-Receiver Radar Sensing
An ISAC configuration where one base station transmits communication signals, and a separate base station or user device receives and analyzes the scattered reflections.
Technical Explanation
Monostatic radar suffers when targets have low backward radar cross-sections (stealth shapes) or when strong self-interference obscures close targets. Bistatic ISAC separates the transmitter and receiver geographically: Tower A transmits data to a smartphone, while Tower B (or another vehicle) captures the forward-scattered signals bouncing off objects in between. This geometry reveals hidden targets and provides richer 3D spatial shape reconstruction.
Key Functions
- Geographically separated transmitter and receiver nodes capturing scattered radar waves
- Overcoming monostatic self-interference limitations for ultra-close target detection
- Exploiting forward-scatter radar cross-section peaks for small drones and stealth targets
- Enabling mobile devices to act as passive radar receivers without transmitting RF energy
- Multi-angle 3D spatial shape reconstruction and material identification
Specifications
IEEE Transactions on Aerospace and Electronic Systems, ETSI ISG ISAC
Interfaces
Bistatic-SyncXn-Sensing-Coord
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