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| Successive Approximation Division Algorithm in Laser Interference Signal Subdivision Based on FPGA |
| HUANG Xiao-qing1, GAO Si-tian2, MIAO Qi1, LU Rong-sheng1 |
1.Hefei University of Technology, Hefei, Anhui 230009, China;
2.National Institute of Metrology, Beijing 100029, China |
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Abstract In order to achieve the goal of the laser interference measurement signal being in high speed and high precision subdivision, the division of tangent subdivision algorithm is improved. The successive approximation algorithm instead of using shift subtraction algorithm is used more in the past. Experiments prove that successive approximation algorithm is faster than shift subtractionm, resource usage is less, and successive approximation algorithm is more suitable for FPGA based on high speed and high precision requirements.
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2014, Vol. 35 
