Single bistatic phase noise estimator for distributed coherent radar systems
By using a single bistatic phase noise estimator and leveraging MIMO configuration and beamforming techniques, phase noise is directly estimated and compensated, solving the problem of dynamic range degradation caused by phase noise in multi-transceiver radar systems. This achieves efficient phase noise correction and improved system flexibility.
Patent Information
- Application Number
- CN202610004260.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-16
- Filing Date
- 2026-01-05
- Publication Date
- 2026-07-17
AI Technical Summary
In multi-transceiver radar systems, phase noise degrades dynamic range performance and strong echoes mask weaker targets. Existing technologies struggle to effectively estimate and compensate for phase noise, especially in distributed coherent radar systems, where traditional methods require complex filtering operations and dependence on transfer functions.
A single bistatic phase noise estimator is used. Through MIMO configuration and beamforming technology, the phase noise is directly estimated and compensated by taking advantage of the characteristics of the spillover signal, thus avoiding the need for frequency division multiple access and high-pass filtering. The phase noise estimation process is simplified by using Hilbert transform and fixed symbol parameters.
It improves the accuracy of phase noise estimation and correction, enhances the dynamic range, simplifies computational complexity, is suitable for multi-transceiver and single-transceiver radar systems, supports multi-static distributed coherent radar configurations, and improves system flexibility and scalability.
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