An on-board image processing simulation evaluation device

Abstract

The invention discloses a simulation evaluation device for images processing on a satellite. The device comprises fixed point DSPs, floating point DSPs, and FPGA and FPGA connected to the fixed pointDSPs and the floating point DSPs; the device is used for conducting simulation evaluation to the satellite images processing on the FPGA and a satellite borne ASIC, when conducting fixed point evaluation and floating point evaluation, the processing of images on the satellite is divided into fixed point processing and floating point processing, the fixed point processing is finished on the fixed point DSP, the floating point processing is finished on the floating point DSP, the FPGA is used for data interaction and synchronization between the fixed point processing and the floating point processing, finally, the operating performances of the fixed point and the floating point are obtained. At the same time, the processing structure of two FPGAs connected to the fixed point DSPs and the floating point DSPs, can simulate the redundant design of images processing system on the satellite. The simulation evaluation device for images processing on the satellite has an ability of multi-dimensional evaluation of images processing on the satellite, and the advantages of big evaluation range and wide coverage.

Description

technical field [0001] The invention belongs to the field of on-board image processing and simulation evaluation, and more particularly relates to an on-board image processing simulation evaluation device. Background technique [0002] Due to the increasing amount of image data acquired by satellites, the traditional mode of transmitting on-board images to the ground faces bandwidth bottlenecks. On-board processing of images has become an important trend. However, due to the limitation of the satellite orbit environment, the commonly used ground image processing system cannot be directly applied on the satellite. The current image processing system adapted to the harsh environment on the star also faces high costs and cannot adapt to the problem of multi-tasking processing algorithms. Therefore, the existing on-board image processing methods and hardware platforms cannot adapt to various on-board processing tasks in the future. The development of new processing methods an...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides an on-board image processing simulation evaluation device, thereby solving the technical problem in the prior art that it cannot perform multi-dimensional simulation evaluation for various image processing tasks on the satellite

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