Abstract
This paper presents a long-time integration method for passive radar detection of marine target with multi-stage motions using global navigation satellite system (GNSS) as illuminator. Owing to the complex motion, the range cell migration (RCM) and the Doppler parameters of the target echo pertaining the multiple motion stages are different. To solve the problems, in this method, first the range symmetry transform (RST) is applied to correct the RCM over the multiple stages, after which a one-dimensional azimuth signal can be directly extracted from the two-dimensional echo. Then, the conjugate integration processing (CIP) is performed to accumulate the target energy during each stage into Doppler centroid (DC) and Doppler frequency rate (DFR) domain. Finally, in order to settle the difference in Doppler parameters between multiple stages, the DC-DFR maps are projected and combined in high-dimensional Doppler parameter domain after Doppler frequency shift compensation, implementing the well integration of the echo over the entire long time. The effectiveness of the proposed integration method is demonstrated by simulations.
| Original language | English |
|---|---|
| Title of host publication | 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2815-2818 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781728163741 |
| DOIs | |
| State | Published - 26 Sep 2020 |
| Externally published | Yes |
| Event | 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Virtual, Waikoloa, United States Duration: 26 Sep 2020 → 2 Oct 2020 |
Publication series
| Name | International Geoscience and Remote Sensing Symposium (IGARSS) |
|---|
Conference
| Conference | 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 |
|---|---|
| Country/Territory | United States |
| City | Virtual, Waikoloa |
| Period | 26/09/20 → 2/10/20 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 14 Life Below Water
Keywords
- GNSS-based passive radar
- long-time integration
- maritime surveillance
- moving target detection
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