After repeated testing and debugging , the interface circuit is approved rational . it can complete the data transmission and implement the interface between the peripheral equipment and pci bus successfully , which indicates that the scheme of adopting special chip to realize the pci interface is feasible and convenient in technique 经反复调试,该接口电路能够顺利地完成数据传输,可以成功地实现pci总线与外设的接口,从而验证了用专用接口芯片实现pci总线接口在技术上的可行性。
The linear regression models and the non - linear regression models are established respectively , which can be used in monitoring the grassland biomass based on the vegetation indices . finally , in order to establish the grassland biomass monitoring models with higher accuracy the different forms of the non - linear regression model were established respectively , including the quadric equation , the cubic equation , the logarithmic equation , and the exponential equation . the repeated tests indicated that the cubic equation is the best one in terms of the suitability of use in the study area 建立遥感植被指数和草地生物量的一元线性回归模型和非线性回归模型,通过反复分析论证得出,非线性回归模型相对于一元线性回归模型与实测生物量更为符合;通过分析植被指数与实测生物量的不同非线性回归模型的结果,表明三次方程y = - 18 . 626rvi ~ 3 + 220 . 317rvi ~ 2 - 648 . 271rvi + 691 . 093是最适用于监测研究区草地生物量的非线性模型。