As to demands of automatic position control system, a model of system mathematics was set up. Control algorithm of precise forging machine orientation is studied.
针对位置自动控制系统的要求，建立了系统数学模型，研究了精锻机控制系统的定位控制算法。
Simulation result shows that the new algorithm can reach 0.05 pixel of orientation precision, and it is more precise and stable.
实验结果表明，改进的算法能达到0.05个像元大小的定位精度，具有更高的定位精度和稳定性。
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