Enhanced Range Doppler Mapping Algorithm for Passive GNSS based radar Rerial Target Detection Article Swipe
Zhuxian Zhang
,
Yu Zheng
,
Linhua Zheng
,
Peidong Zhu
,
Junwei Nie
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-3215940/v1
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-3215940/v1
Passive GNSS based radar is a developing non-contact and emerging remote sensing technology in recent decade. However, due to the problems of weak signal and low resolution, the application of such technology in remote sensing application is very limited. This paper considers GNSS based radar detection of air object, and puts forward the signal-to-noise ratio improvement scheme of range doppler map (RDM) to improve the detection ability. In this paper, bi-static GNSS radar model is employed. The RDM of air target is obtained on the basis of direct and reflected signals. The proposed RDM SNR (signal-to-noise ratio) improvement algorithm mainly uses the autocorrelation characteristics of GNSS code to purify and reduce the noise of GNSS signal, so as to improve resolution of RDM and accuracy of target motion state solution. Compared with the current noise reduction method, which mostly depends on the prior conditions such as background environment, the proposed algorithm is more applicable, as it is mainly based on the characteristics of the signal. The RDM image is obtained by simulating moving target detection.In the condition of input signal CNR(Carrier-to-noise ration) is 35dB, the algorithm shows that the image information entropy after noise reduction is 63.23% for GPS signal and 71.69% for Beidou signal which lower than that before noise reduction.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.21203/rs.3.rs-3215940/v1
- https://www.researchsquare.com/article/rs-3215940/latest.pdf
- OA Status
- green
- References
- 20
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4385984102
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4385984102Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.21203/rs.3.rs-3215940/v1Digital Object Identifier
- Title
-
Enhanced Range Doppler Mapping Algorithm for Passive GNSS based radar Rerial Target DetectionWork title
- Type
-
preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2023Year of publication
- Publication date
-
2023-08-18Full publication date if available
- Authors
-
Zhuxian Zhang, Yu Zheng, Linhua Zheng, Peidong Zhu, Junwei NieList of authors in order
- Landing page
-
https://doi.org/10.21203/rs.3.rs-3215940/v1Publisher landing page
- PDF URL
-
https://www.researchsquare.com/article/rs-3215940/latest.pdfDirect link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://www.researchsquare.com/article/rs-3215940/latest.pdfDirect OA link when available
- Concepts
-
RDM, GNSS applications, Computer science, Radar, Algorithm, Noise (video), Remote sensing, Global Positioning System, Electronic engineering, Real-time computing, Computer vision, Engineering, Telecommunications, Geography, Image (mathematics), Computer networkTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
- References (count)
-
20Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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