In this paper we improve the CGRS algorithm, and then make a simulation experiment to analysis the stationary value quantitatively and compare the performance of the improved algorithm and the old one.
本文对CGRS算法进行了改进，然后通过模拟实验对该固定值进行定量分析，同时比较了改进后的算法和旧算法的性能。
But the algorithm only simply uses stationary value to evaluate the link performance.
但是，CGRS算法仅仅简单地用固定值来衡量链路性能高低。
Then, we have numerically simulated the model and analyzed the influence of structural parameters on the characteristics resonances, transmission and quality factor of CGRs. Finally, we have summarized the method which improve the CGRs performances by optimizing structural parameters.
然后对模型进行了数值模拟，分析了结构参数对环形光栅谐振器谐振特性、传输特性和品质因子的影响，最后总结出了通过优化结构参数提高环形光栅谐振器性能的方法。
Connecting with the selection practice of characteristic database system platforms in Shanghai Lixin Accounting College, this paper compares the advantages and disadvantages of TPI, CDI and CGRS.
结合上海立信会计学院特色数据库管理平台的选择实践，比较了TPI，CDI，CGRS三个数据库平台的优缺点。