Single-chip multi-processing architecture for spaceborne SAR imaging and intelligent processing
In: Xibei Gongye Daxue Xuebao, Jg. 39 (2021), Heft 3, S. 510-520
Online
unknown
Zugriff:
The satellite-borne SAR image intelligent processing system needs to process on-orbit real-time imaging and various tasks of applications, for which reason designing a dedicated high-efficient single-chip multi-processor is of prioritized necessity that can simultaneously satisfy requirements of real-time and low power consumption. Aiming at on-chip data organization and memory access structure, two typical models of SAR(synthetic aperture radar) imaging CSA (chirp scaling) and neural network VGG-11 are analyzed, and then a collaborative computing model for the intelligent processing on remote sensing is extracted. A strip Tile data processing scheme and a dedicated multi-processing architecture is not only proposed, but a data organization and a caching strategy of Tile space synchronization splicing is also presented. In addition, the designed data caching structure among the processing units greatly reduces off-chip access memory bandwidth while supporting parallel pipeline execution of multi-task model. The chip adopts 28 nm CMOS technology featuring with merely 1.83 W of the overall power consumption, whose throughput and energy efficiency reaches 9.89TOPS and 5.4 TOPS/W, respectively. The present architecture can improve real-time performance of the on-orbit remote sensing intelligent processing platform while reducing the complexity of system designing, which is highly adaptive to differentiated expansions according to different models of algorithm.
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Single-chip multi-processing architecture for spaceborne SAR imaging and intelligent processing
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Autor/in / Beteiligte Person: | Huang, Xiaoping ; Zhang, Shengbing ; Wang, Shiyu ; Chang, Libo |
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Zeitschrift: | Xibei Gongye Daxue Xuebao, Jg. 39 (2021), Heft 3, S. 510-520 |
Veröffentlichung: | The Northwestern Polytechnical University, 2021 |
Medientyp: | unknown |
ISSN: | 2609-7125 (print) ; 1000-2758 (print) |
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