A SAR radio frequency interference suppression method
A radio frequency interference and echo signal technology, which is applied in the intersection of aerospace and microwave remote sensing, can solve the problems of subspace projection method relying on subspace orthogonality, SAR image performance deterioration, loss of useful information, etc., and achieve good interference suppression effect. , Excellent interference discrimination threshold, accurate assignment effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0043] figure 1 It is a principle flow chart of the spaceborne SAR radio frequency interference suppression method provided by the present invention. The whole process includes: taking a distance line echo signal of SAR data as input, constructing a phase space matrix according to the echo signal, using the subspace projection method to obtain the phase space matrix of the reference signal; The one-dimensional reference signal is recovered from the space matrix; according to the reference signal, the discrimination threshold of the interference signal is determined; according to the determined interference discrimination threshold, the interference frequency point existing in the echo is determined, and the amplitude mean value of the reference signal is used as a replacement to complete the RFI suppression for distance lines.
[0044] Figure 2 ~ Figure 6 It is the result of point target simulation experiment. The echo of a single point target is simulated, and radio frequ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com