Error analysis of the piston estimation method in dispersed fringe sensor<xref rid="cpb_26_3_039501fn1" ref-type="fn">*</xref><fn id="cpb_26_3_039501fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. 61008038).</p></fn>

Error analysis of the piston estimation method in dispersed fringe sensor**

Project supported by the National Natural Science Foundation of China (Grant No. 61008038).

Li Yang^{1, 2, 3}, Wang Sheng-Qian^{1, 2}, Rao Chang-Hui^{1, 2, †}

(color online) Noise amplitude of reference fringe image, x and y are dispersed axis and interferential axis in the dispersed fringe image, respectively.