Multi-channel Signal Modeling and AMTI Performance Analysis for Distributed Space-based Radar Systems
| Author(s) | Chen, Jiangyuan | |
| Author(s) | Huang, Penghui | |
| Author(s) | Xia, Xiang-Gen | |
| Author(s) | Chen, Junli | |
| Author(s) | Sun, Yongyan | |
| Author(s) | Liu, Xingzhao | |
| Author(s) | Liao, Guisheng | |
| Date Accessioned | 2022-09-22T13:38:49Z | |
| Date Available | 2022-09-22T13:38:49Z | |
| Publication Date | 2022-08-29 | |
| Description | © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.This article was originally published in IEEE Transactions on Geoscience and Remote Sensing. The version of record is available at: https://doi.org/10.1109/TGRS.2022.3202567 | en_US |
| Abstract | Due to the limited size, carrying capacity, power-aperture product, and high hardware cost of satellite platform, the traditional single-platform spaceborne radar system encounters the problems of poor target minimum detectable velocity (MDV) performance, considerably deteriorating the moving target detection performance. To improve the air moving target indication (AMTI) performance, especially for a weak target, distributed space-based radar system (DSBR) becomes a good candidate due to the longer along-track baseline (ATB) and spatial power synthesis. However, due to the sparse configuration of radar baseline distribution, the detection performance of air moving targets (AMTs) will be restricted by many practical factors in an actual DSBR system. In this paper, multi-channel signal models of an observed moving target and ground clutter are accurately established in a DSBR framework, where the error influences of cross-track baseline (CTB), terrain fluctuation, and channel inconsistency response are considered. Then, the influence of the non-ideal factors, including the channel noise, long-intersatellite ATB, long-intersatellite CTB, synchronization errors, and interchannel amplitude and phase inconsistency errors, on the AMTI performance is analyzed term by term. The simulation results provide the useful guidance for the system design of a DSBR with the AMTI tasks. | en_US |
| Sponsor | This work was supported in part by the National Natural Science Foundation Program of China under Grant 62171272, in part by the USCAST2021-15. | en_US |
| Citation | J. Chen et al., "Multi-channel Signal Modeling and AMTI Performance Analysis for Distributed Space-based Radar Systems," in IEEE Transactions on Geoscience and Remote Sensing, 2022, doi: 10.1109/TGRS.2022.3202567. | en_US |
| ISSN | 1558-0644 | |
| URL | https://udspace.udel.edu/handle/19716/31404 | |
| Language | en_US | en_US |
| Publisher | IEEE Transactions on Geoscience and Remote Sensing | en_US |
| Keywords | Distributed space-based early warning radar (DSBR) | en_US |
| Keywords | air moving target indication (AMTI) | en_US |
| Keywords | space-time adaptive processing (STAP) | en_US |
| Keywords | interchannel correlation analysis | en_US |
| Title | Multi-channel Signal Modeling and AMTI Performance Analysis for Distributed Space-based Radar Systems | en_US |
| Type | Article | en_US |
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