通过螺旋采集数据获取足够的信息，运用特殊算法，重建管的三维图形，显示在模拟监视器上。
Through the spiral gathering data gain enough information, the utilization special algorithm, reconstructs the tube the three dimensional graph, demonstrated in simulates on the monitoring device.
与通用算法比较，计算时间、存储空间的开支和图形显示效果方面都有较好的改进。
Comparing with the general algorithm, it has obvious advantage in computing time, memory room and graphical display effect.
本文提供的HITDSO软件包，直接根据DSO采集的数据，利用FFT的高效算法，得到DSO的上述几项性能指标，并进行图形及数值显示。
HITDSO package is provided in this paper, it can get the above specifications and display the graphics and values by using the acquiring data and efficient FFT algorithm.
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