一种基于FPGA实现层析重建的加速方法

An Approach Based on FPGA to Accelerate Accomplishing Reconstruction of Tomography

提出一种在FPGA上实现发射光谱层析技术SIRT算法时,在原有资源不变的情况下,加速系统运算的方法。该方法把矩阵分块理论的数学原理和FPGA具有并行运算能力的优势有机结合,使运算速度有效提升,不仅使发射光谱层析(EST)技术向实时化迈近了一步,同时也为今后在FPGA上实现其他数据量庞大的数字信号处理时速度的提升和资源的优化给出启示,即在硬件资源不变的情况下,可以充分利用数学理论并结合硬件资源现有的优势实现设计的目标。

An approach based on FPGA to accomplish Simultaneous Iterative Reconstruction Technique （SIRT） of Emission Spectral Tomography（EST） is proposed to accelerate when resources unchanged. This approach combines perfectly the two of mathematical principle of matrix division and the advantage of parallel computing of FPGA,increases the speed effec- tively. This is not only forwarding to real-time reconstrunction of Emission Spectral Tomography,at the same time it gives us an inspiration when we want to accomplish digital signal processing that have huge data, how to accelerate and to optimized resources. In other words, under the situation of resource unchanged, the design goal can be realized if full using mathematics theory and the advantage that the hard resource haven.