Radar target detection method based on estimation before detection
US12235344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2022 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jun 3, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/723
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a radar target detection method based on estimation before detection (EBD), which comprises: obtaining pre-detect targets (PDTs) based on conventional pulse-Doppler processing and pre-detection; estimating ranges and speeds of PDTs, i.e., performing parameter EBD; establishing a dimension-reduction observation model of a received signal based on PDTs and parameter thereof; reconstructing a target vector in the dimension-reduction observation model based on a sparse recovery algorithm; and designing a generalized likelihood ratio detector based on the reconstruction result for target detection. The method of the present invention can significantly reduce the radar signal processing loss, and the target detector used in the method has the constant false alarm rate (CFAR) property, so that the weak target detection performance can be greatly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.