Vol. 4 No. 2 (2016), Research Paper
Vol. 4 No. 2 (2016)

Development of Raw Data Processing System for CP-SAR On-board JX-2 UAV using Mobile Heterogeneous Computing

Research Paper
Published 2016-07-09
Bambang Setiadi 
Lembaga Ilmu Pengetahuan Indonesia and Center for Environmental Remote Sensing Chiba University, Chiba, Japan
Good Fried Panggabean
Center for Environmental Remote Sensing Chiba University, Chiba, Japan
Josaphat Tetuko Sri Sumantyo
Center for Environmental Remote Sensing Chiba University, Chiba, Japan
Koo Voon Chet 
Faculty of Engineering and Technology, Multimedia University, Malaka, Malaysia

Keywords

synthetic aperture radar
sar processing
range-doppler
mobile heterogeneous computing
cpu
graphic processing units
gpu
common unified device architecture

Abstract

This paper presents the development of unmanned aerial vehicle (UAV) -based Circularly Polarized Synthetic Aperture Radar (CP-SAR) raw data processing system for the experimental JX-2 UAV. First, we present the design and outline of CP-SAR system, followed by derivation of resolution and raw data rate value from axial ratio and geometry. Following the signal processing requirements, we propose to use mobile heterogeneous platform for on-board raw SAR data processing system. Then we describe the raw data processing steps based on Range-Doppler Algorithm for stripmap mode UAV SAR. Experiment results using a middle-end CPU-GPU mobile heterogeneous hardware development kit with CUDA programming interface and raw data input from actual UAV mission demonstrate the capability of the proposed mobile heterogeneous platform for SAR processing on-board JX-2 UAV.