ICEYE Microsatellite SAR Constellation Status Update: Long Dwell Spotlight and Wide Swath Imaging Modes

Ignatenko, Vladimir; Nottingham, M. R.; Radius, Andrea; Lamentowski, Leszek; Muff, Darren

doi:10.1109/igarss47720.2021.9554486

Cited by 13 publications

(4 citation statements)

References 2 publications

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“…South Korea aligns well with this global trend, planning to deploy small satellites comprising over 130 units by 2030 [5,6]. Internationally, entities like Finland's ICEYE [7][8][9] and the United States' Capella Space [10,11] have already successfully deployed SAR satellite constellations, underlining the global consensus on their utility and efficiency. Following this trend, there is an increased complexity and frequency in mission planning.…”

Section: Introductionmentioning

confidence: 94%

Application of Optimal Scheduling for Synthetic Aperture Radar Satellite Constellation: Multi-Imaging Mission in High-Density Regional Area

Lee,

Kim,

Chung

et al. 2024

Aerospace

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This study explores optimizing Synthetic Aperture Radar (SAR) satellite constellation scheduling for multi-imaging missions in densely targeted areas using an in-house-developed Modified Dynamic Programming (MDP) algorithm. By employing Mixed-Integer Linear Programming (MILP) to define the mission planning problem, this research aims to maximize observation of high-value targets within restricted planning horizons. Numerical simulations, covering a wide range of target numbers and satellite configurations, reveal the MDP algorithm’s superior mission allocation efficiency, enhanced success rates, and reduced revisit times compared to the greedy algorithm. The findings underscore the MDP algorithm’s improved operational efficiency and planning robustness for complex imaging tasks, demonstrating significant advancements over traditional approaches.

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Section: Introductionmentioning

confidence: 94%

Application of Optimal Scheduling for Synthetic Aperture Radar Satellite Constellation: Multi-Imaging Mission in High-Density Regional Area

Lee,

Kim,

Chung

et al. 2024

Aerospace

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“…Sandia National Laboratories (SNL) and Defense Advanced Research Projects Agency (DARPA) first proposed the concept of video SAR [5], and then video SAR has been listed as a key research project by many countries and institutes. Currently, many institutions have published their video SAR systems and results, such as SNL [6,7], DARPA [8], General Atomics Aeronautical Systems Incorporated (GA-ASI) [9], Fraunhofer Institute for High-Frequency Physics and Radar Techniques (FHR) [10], Jet Propulsion Laboratory (JPL) [11], and ICEYE [12,13], which proves the importance and broad application value of video SAR.…”

Section: Introductionmentioning

confidence: 98%

Generalized Persistent Polar Format Algorithm for Fast Imaging of Airborne Video SAR

Jiang

Yuan

et al. 2023

Remote Sensing

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As a cutting-edge research direction in the field of radar imaging, video SAR has the capability of high-resolution and persistent imaging at any time and under any weather. Video SAR requires high computational efficiency of the imaging algorithm, and PFA has become the preferred imaging algorithm because of its applicability to the spotlight mode and relatively high computational efficiency. However, traditional PFA also has problems, such as low efficiency and limited scene size. To address the above problems, a generalized persistent polar format algorithm, called GPPFA, is proposed for airborne video SAR imaging that is applicable to the persistent imaging requirements of airborne video SAR under multitasking conditions. Firstly, the wavenumber domain resampling characteristics of video SAR PFA are analyzed, and a generalized resampling method is proposed to obtain higher efficiency. Secondly, for the problem of scene size limitation caused by wavefront curvature error, an efficient compensation method applicable to different scene sizes is proposed. GPPFA is capable of video SAR imaging at different wavebands, different slant ranges, and arbitrary scene sizes. Point target and extended target experiments verify the effectiveness and efficiency of the proposed method.

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“…9 ICEYE constellation enables a three hour on average revisit rate around the globe. 10,11 The Capella constellation provides average imaging revisit times of less than one hour. This study investigates the feasibility of using SAR constellations to track the SoI at sea.…”

Section: Introductionmentioning

confidence: 99%

Maritime ship tracking based on SAR constellation: a preliminary implementation

Lang,

Niu,

et al. 2023

Image and Signal Processing for Remote Sensing XXIX

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Maritime ship tracking is a crucial component of maritime surveillance, holding paramount importance in both military and civilian spheres. This study proposes a maritime ship tracking concept utilizing Synthetic Aperture Radar (SAR) constellations, along with a Detection-Matching-Tracking (DMT) implementation strategy. Specifically, we design a novel SAR ship detector capable of locating and segmenting all ships present within image sequences provided by an SAR constellation. Following ship detection, we employ an enhanced two-channel convolutional neural network (2-channel CNN) to perform ship matching between the target ship and potential candidates. Ultimately, based on the matching results, we can plot the space-time trajectory of the tracked ship. The preliminary experiment demonstrates that the proposed methodology is feasible and has the potential to track ships in open seas.

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ICEYE Microsatellite SAR Constellation Status Update: Long Dwell Spotlight and Wide Swath Imaging Modes

Cited by 13 publications

References 2 publications

Application of Optimal Scheduling for Synthetic Aperture Radar Satellite Constellation: Multi-Imaging Mission in High-Density Regional Area

Application of Optimal Scheduling for Synthetic Aperture Radar Satellite Constellation: Multi-Imaging Mission in High-Density Regional Area

Generalized Persistent Polar Format Algorithm for Fast Imaging of Airborne Video SAR

Maritime ship tracking based on SAR constellation: a preliminary implementation

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