Design of High Reliable Spaceborne SAR Real-time Processing Platform

Abstract

We propose a high reliable spaceborne SAR real-time processing platform. By means of dual redundant high speed data interface, platform can realize real-time interaction with payload by 2-channel 10Gbps or parallel 20Gbps. Two high performance processors on board can realize floating point processing by 2-channel 0.8TFLOPS or parallel 1.6TFLOPS. Onboard TTE end nodes can be synchronized with any other module with accuracy better than 1us. The reliability design provides high reliable hardware solution for real-time data processing of spaceborne SAR system. Based on the processing platform, the SAR image of a civil airport is processed, and the SAR image with clear outline and obvious characteristics is obtained. The processing ability is more than 5 times higher than that of the ordinary processing platform.