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

Bambang Setiadi, Good Fried Panggabean, Josaphat Tetuko Sri Sumantyo, Koo Voon Chet


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.


synthetic aperture radar, SAR processing, Range-Doppler, Mobile Heterogeneous Computing, CPU, Graphic Processing Units, GPU, Common Unified Device Architecture

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