Unite-domain positioning space-time two-dimensional self-adaptive processing method based on data fitting

A technology of data fitting and processing method, applied in the field of communication, which can solve the problems of difficulty in guaranteeing real-time performance, affecting the effect, and destroying the sparsity of echo data.
CN104459658AInactive Publication Date: 2015-03-25XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XIDIAN UNIV
Publication Date
2015-03-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a unite-domain positioning space-time two-dimensional self-adaptive processing method based on data fitting, and relates to radar technology. The method comprises the steps that 1, JDL dimensionality reduction echo data and space-time guide vectors are obtained; 2, a data basis matrix of a distance unit to be detected is constructed; 3, a data basis matrix with targets blocked is obtained; 4, the fitting coefficient of auxiliary echo data is obtained; 5, the minimum fitting error of data of the distance unit to be detected is obtained; 6, unit average constant false alarm rate detection is carried out on the minimum fitting error of the data of the distance unit to be detected. The unite-domain positioning space-time two-dimensional self-adaptive processing method mainly solves the problem that a traditional STAP method is huge in computation burden and strict in sample requirement, reduces the false alarm rate, improves movable target detection probability, and has the good application prospect in measured data processing and STAP performance improvement.
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Description

technical field

[0001] The invention belongs to the technical field of communication, relates to radar technology, and in particular to a joint domain positioning space-time two-dimensional adaptive processing method based on data fitting, which is used for airborne early warning radar signal processing. Background technique

[0002] The main task of airborne early warning radar is to detect targets in complex clutter background, and to locate and track them. Effective suppression of clutter is the core means to improve the performance of airborne early warning radar. Space-time adaptive processing (STAP) technology makes full use of airspace and time domain information, while coherently accumulating target signals, and filters ground clutter through space-time adaptive processing to realize airborne early warning radar For the effective detection of targets, such as the E2-D airborne early warning radar of the United States, this technology is adopted.

[0003] In practica...

Claims

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