归纳与抽象训练: Induction and abstract training: 本题要求各位同学感受数学建模的乐趣,余力的同学可以开展深入的研究。题目给出“2018年中国研究生数学建模竞赛B题”作为参考资料。 大家通过参阅参考资料,抽象出数字光纤通信系统中如果采用16QAM调制方式下,其信噪比的数学表达就可以啦^^。 要求给出公式并说明物理含义。 B:第十五届“华为杯”中国研究生数学建模竞题—B题.docx This topic requires students to feel the fun of mathematical modeling, students who have spare resources can carry out in-depth research. Give the title "Chinese Postgraduate Mathematical Modeling Contest 2018 B" as a reference. By referring to the reference materials, we abstract the mathematical expression of signal-to-noise ratio in digital optical fiber communication system if 16QAM modulation mode is adopted. Formulas and physical meanings are required.