Envelope-Based Grid-Point Approach: Efficient Runtime Complexity for Remote Sensing Coverage Analysis
نویسندگان
چکیده
Modern remote sensing science objectives call for multi-instrument measurement collection under ever-stringent mission requirements. Distributed spacecraft missions (DSMs) answer the demand, with multisatellite architectures, capable of short revisit intervals and expansive coverage capacity. Variations in instrument, orbit, number satellites expand trade space combinatorically, leading to a computationally demanding design problem. Evaluating intelligently is prevalent literature, but fundamental computational burden rests on figure merit (FOM) calculation, quantifying architecture performance. The grid-point approach (GPA) quick search correction (QSC) methods are used develop FOMs, poor efficiency leads slow evaluation prospective DSM candidates. In this paper, novel method introduced, envelope (EGPA), fulfilling need faster FOM calculation. EGPA runtime nearly invariant temporal accuracy varies by inverse grid cell size (GCS) constant GCS-to-swath ratio, thereby scaling high spatial resolution. new validated GPA conical rectangular fields view, then performance compared against QSC, modern improvement GPA. Both Walker Delta constellation (80°:6/3/1) over 1 day propagation, demonstrating utility quickly determining FOMs design.
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ژورنال
عنوان ژورنال: Journal of Spacecraft and Rockets
سال: 2023
ISSN: ['1533-6794', '0022-4650']
DOI: https://doi.org/10.2514/1.a35481