A multiprocessor board for SAR raw data processing is presented. It has been designed especially for application on small platforms, e.g. UAVs. The challenges were to provide high processing power for real-time processing of SAR raw data on a small printed circuit board with low power consumption. These constraints can be met by a digital signal processor (DSP) like the HiPAR-DSP 16, which has been developed at the Laboratorium fur Informationstechnologie. The multiprocessor board of the size of 230x160x20mm3 is equipped with six HiPAR-DSP 16 and has a peak power consumption of 15 W.
For generation of SAR images the wk algorithm has been selected. It has been implemented for the HiPAR-DSP 16 and mapped to the multiprocessor board. Each HiPAR-DSP 16 receives one set of rangelines and returns the image data.
A demonstration system emulates exactly the timing of the SAR sensor. In this way the multiprocessor board works in a real environment. The SAR images generated by the multiprocessor board can be stored and displayed. The resulting images have been compared to images generated by the reference code.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.