| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2023-03-03 13:50 A study of fast factorized backprojection on multiple GPUs for large-sized SAR imaging Masato Gocho, Masayoshi Tsuchida (Mitsubishi Electric), Kazunori Ueda (Waseda Univ.)  SANE2022-120 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents a study of distributed parallel FFBP (fast factorized backprojection) on multiple GPUs for large-sized SAR (synthetic aperture radar) imaging, where signals and images do not fit in the GPU memory size. The FFBP is based on recursive subaperture divisions, and produces the low-resolution image for each subaperture. The produced subaperture images are recursively resampled and coherently summed to produce a high-resolution image. To parallelize such a imaging algorithm, a breadth-first recursive division is performed to simultaneously process all subapertures located at the same division-depth. At each division-depth, every subaperture signal and/or image is subdivided by CPU, and distributed from CPU to all GPUs. Each GPU processes the imaging or image-fusion on the GPU memory to produce new image. The prodoced images are gathered in CPU memory. Our parallel FFBP is configured by repeating the above procedure for each division-depth. In the case of FFBP imaging with $2^10$ subapertures for the 32768 pulses x2 channels, we found that 8 GPUs take 5.8 seconds, which is 24.9 times faster than 32-threaded CPUs, to produce 32768x32768 pixels. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | synthetic aperture radar / backprojection / / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 408, SANE2022-120, pp. 118-123, March 2023. | |
| Paper # | SANE2022-120 | |
| Date of Issue | 2023-02-23 (SANE) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SANE2022-120 |
|
| Conference Information | |
| Committee | SANE SAT |
| Conference Date | 2023-03-02 - 2023-03-03 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SANE |
| Conference Code | 2023-03-SANE-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of fast factorized backprojection on multiple GPUs for large-sized SAR imaging |
| Sub Title (in English) | |
| Keyword(1) | synthetic aperture radar |
| Keyword(2) | backprojection |
| Keyword(3) | |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masato Gocho |
| 1st Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 2nd Author's Name | Masayoshi Tsuchida |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 3rd Author's Name | Kazunori Ueda |
| 3rd Author's Affiliation | Waseda University (Waseda Univ.) |
| 4th Author's Name | |
| 4th Author's Affiliation | () |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2023-03-03 13:50:00 |
| Presentation Time | 20 minutes |
| Registration for | SANE |
| Paper # | SANE2022-120 |
| Volume (vol) | vol.122 |
| Number (no) | no.408 |
| Page | pp.118-123 |
| #Pages | 6 |
| Date of Issue | 2023-02-23 (SANE) |
[Return to Top Page]