论文部分内容阅读
引言模拟计算机可以用来解决很多的问题,特别是那些用微分方程来描述的动态问题,然而,它受到精确度及动态范围的限制。数字微分分析机固然可以提供任意需要的精确度或动态范围,但它的运算速度较低,而且由于数字化以及积分过程中采用有限差分计算,可能产生不稳定的解答。模拟技术的优点是速度高以及变数的连续表示;数字技术的优点是精确度高,动态范围大。混合使用这两种技术,就可以将这两者的优点结合起
Introduction Analog computers can be used to solve many problems, especially those described by differential equations. However, they are limited by the accuracy and dynamic range. Digital Differential Analyzers can of course provide any desired accuracy or dynamic range, but its computational speed is low and due to digitization and the use of finite difference calculations in the integration process, it is possible to produce an unstable solution. The advantages of analog technology are high speed and continuous representation of variables; the advantages of digital technology are high accuracy and large dynamic range. By combining these two technologies, the advantages of both can be combined