机译:使用改进的CORDIC算法设计精确的光栅细分系统
China Jiliang Univ Sch Measurement & Testing Engn Xueyuan St 258 Hangzhou 310018 Zhejiang Peoples R China;
Natl Inst Metrol Div Metrol Length & Precis Engn North 3rd Ring Rd 18 Beijing 100029 Peoples R China;
field programmable gate arrays; measurement errors; error compensation; dynamic response; angular measurement; light interferometers; digital arithmetic; function generators; modified CORDIC algorithm; robust linearisation method; sinusoidal signal; nonlinear subdivision; rotation digital computer algorithm; double-rotation iteration; arccosine functions; error compensation; digital subdivision; moire signals; field-programmable gate array chip; stable signals; function generator; direct current offset deviation; amplitude deviation; ideal subdivision effect; angle-measuring device; circular grating; grating moire signal; grating lines; angle-measurement accuracy; measurement error; MicroE system; precise subdivision system design;
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