Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Signal processing method, equipment and computer storage medium

A signal processing and signal receiving technology, applied in the field of radar, which can solve problems such as loss, clutter effect without consideration, and data rate reduction.

Inactive Publication Date: 2018-12-21
NORTHWEST UNIV(CN)
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the current relevant FDA-MIMO technology, although it can effectively suppress clutter and false target interference, it will reduce the detection performance when array errors occur; target, it will suffer from severe SINR (Signal to Interference plus Noise Ratio) loss; or, using double pulses to achieve suppression of false target interference without prior knowledge, but resulting in reduced data rates, and The influence of ground clutter is also not considered

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Signal processing method, equipment and computer storage medium
  • Signal processing method, equipment and computer storage medium
  • Signal processing method, equipment and computer storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see figure 1 , which shows a signal processing method provided by an embodiment of the present invention, the method may include:

[0029] S101: Perform secondary range dependency (SRD, Secondary Range Dependency) compensation on the received signal to obtain a compensated received signal

[0030] S102: For the cone angle ψ 0 The target, based on the beamforming Q in the emission space domain T and beamforming Q in the receive spatial domain R Get the transmit-receive Tx-Rx space domain transformation matrix B(ψ 0 );

[0031] S103: Speed ​​v for the target 0 , based on the Q formed around the Doppler domain of the target D channels to obtain the time-domain transformation matrix A(v 0 );

[0032] S104: Based on the Tx-Rx space domain transformation matrix B(ψ 0 ) Generate the eliminated Tx-Rx space domain transformation matrix according to the preset false target interference elimination strategy

[0033] S105: The eliminated Tx-Rx space domain transformat...

Embodiment 2

[0087] Based on the same inventive concept of Embodiment 1, if the above solution can be implemented in the form of software function modules and not sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, this implementation The essence of the technical solution of the example or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of software products, and the computer software products are stored in a storage medium, including several instructions for Make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the method described in this embodiment. The aforementioned storage media include: U disk, mobile hard disk, read only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other medi...

Embodiment 3

[0090] Based on the same inventive concept of Embodiment 1, see Figure 5 , which shows a specific hardware structure of a signal processing device 50 provided by an embodiment of the present invention, including: a transceiver antenna 501 , a memory 502 and a processor 503 ; each component is coupled together through a bus system 504 . It can be understood that the bus system 504 is used to realize connection and communication between these components. In addition to the data bus, the bus system 504 also includes a power bus, a control bus and a status signal bus. But for clarity, in Figure 5 The various buses are referenced as bus system 504 in FIG. Wherein, the transceiver antenna 501 is used for receiving and sending signals during the process of sending and receiving information with other external network elements;

[0091] memory 502, used to store computer programs that can run on the processor 503;

[0092] The processor 503 is configured to, when running the com...

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

No PUM Login to View More

Abstract

The embodiment of the invention discloses a signal processing method, equipment and a computer storage medium. The method comprises the steps that secondary range dependence (SRD) compensation is performed on a received signal, and a received signal (shown in the description) after compensation is obtained; according to a target with a taper angle psi<0>, a transmitting-receiving Tx-Rx spatial domain transformation matrix B(psi<0>) is acquired based on a formed beam Q<T> in a transmitting spatial domain and a formed beam Q<R> in a receiving spatial domain; according to the velocity v<0> of thetarget, a time domain transformation matrix A(v<0>) is acquired based on Q<D> channels formed around a Doppler domain of the target; based on the Tx-Rx spatial domain transformation matrix B(psi<0>)and according to a preset false target interference elimination strategy, a Tx-Rx spatial domain transformation matrix (shown in the description) after elimination is generated; after the Tx-Rx spatial domain transformation matrix (shown in the description) after elimination and the time domain transformation matrix A(v<0>) are united, dimension reduction processing is performed on the received signal (shown in the description) after compensation through a united transformation matrix T(r<l>,psi<0>,v<0>); self-adaptive weight vectors are generated through a self-adaptive algorithm based on thereceived signal after dimension reduction; and filtering processing is performed on the received signal after dimension reduction based on the self-adaptive weight vectors to obtain data after filtering.

Description

technical field [0001] The present invention relates to the technical field of radar, in particular to a signal processing method, device and computer storage medium. Background technique [0002] With the rapid development of electronic information warfare, the electromagnetic environment of the battlefield becomes more and more complex. Airborne radar system, as an important sensor for battlefield information acquisition, faces various threats of interference, which can be classified as suppressive interference and false target interference. For false target interference, it will not only increase the background level, but also mislead the radar system to track false targets, resulting in saturation of the radar tracking system. At present, Space-Time Adaptive Processing (STAP, Space-Time Adaptive Processing) is a key technology in airborne radar, which can suppress space-time coupled clutter and Sidelobe interference, but for false target interference, STAP will serious...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/00G01S7/36G01S7/41
CPCG01S7/36G01S7/41G01S13/00
Inventor 文才彭进业赵阳
Owner NORTHWEST UNIV(CN)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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