Polarization Cancellation Suppression Main Lobe Suppressive Jamming Method for Networked Radar
A networked radar and suppression jamming technology, applied in the field of networked radar polarization cancellation suppression main lobe suppression jamming, can solve the problems of reducing radar detection performance, consuming large system time and hardware resources, and reducing implementation costs , the effect of stable performance
Inactive Publication Date: 2016-11-30
XIDIAN UNIV
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the estimation of the interference polarization state in this method requires a lot of system time and hardware resources, and under the condition that the interference polarization vector and the target polarization vector are not orthogonal, part of the target echo signal will be filtered out, reducing the radar Detection performance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] refer to figure 2 , the application scenario of the present invention includes a networked radar composed of P-node radars, each node radar has an independent antenna gain, antenna polarization form and transmission signal, there is a target in the far field of space, and there is a suppressing type near the target interference.
[0033] refer to figure 1 , the specific implementation steps of the present invention are as follows:
[0034] Step 1: Calculate the echo signal r received by each node radar l (t).
[0035] 1a) According to the antenna gain g of each node radar l , Antenna polarization form h l , the polarization scattering matrix S of the target, and calculate the target echo signal r received by the radar at each node l,T (t):
[0036] r l , T ( t ) = h l ⊕ ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a networked radar polarization cancellation suppressing main lobe suppressing interference method, which mainly solves the problem that the existing single-polarization radar and dual-polarization radar technology cannot be directly applied to the networked radar. The implementation steps are: 1. Calculate the echo signals received by the radars at each node; 2. Calculate the weighted coefficients for the radars at the first node; 3. Use the weight coefficients to weight the echo signals of the radars at the first nodes, and obtain the weighted , and use it to cancel the echo signal of the first node radar, and obtain the target echo data after polarization cancellation of the first and l node radars; 4. use the first node respectively The transmitted signals of the 1st and 1st node radars are matched and filtered against the target echo data after polarization cancellation, and the signal X after the 1st and 1st node radar interference cancellation is obtained respectively 1 (t) and X l (t). The invention can effectively suppress main lobe suppression interference, and can be used in networked radar systems.
Description
technical field [0001] The invention relates to the field of radar technology, in particular to a method for polarization cancellation to suppress main lobe suppression interference, which can be used in a networked radar system, and under the condition of main lobe suppression interference, the main lobe of each node of the slave network radar The suppression jamming signal entered by the main lobe can be effectively suppressed, and the detection and tracking performance of the networked radar under the condition of main lobe suppression jamming can be improved. Background technique [0002] Suppressive interference is the electronic interference that uses the interference signal obtained by noise to cover or submerge the useless signal, so that the useful signal received by the receiving electronic equipment is blurred or completely covered, so that it cannot work normally. [0003] For suppressive jamming near the target, the jamming signal usually enters from the main lo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/36
Inventor 张娟赵永红张林让刘楠赵珊珊
Owner XIDIAN UNIV