【摘要】 根据传统的Tustin积分算子的积分原理,改变Tustin积分算子的采样间隔,提高积分精度,以此得到了改进的新算子,然后通过Lagrange FIR分数阶延迟滤波器把新积分算子中的分数阶项转换为整数阶,最后采用连续分数展开(CFE)的方法实现了分数阶数字积分器设计.实验证明,设计的分数阶数字积分器在幅频特性上面明显优于传统方法设计的分数阶数字积分器.更多还原

【Abstract】 We get a new operator based on the integral principle of the Tustin integral operator with changing the sampling interval of the Tustin integral operator to improve the integral accuracy. Then we design the new operator through the FIR fractional delay filter, and Continuous Fractional Expansion (CFE) is used to realize the new digital fractional order integrator. Examples demonstrated that the performance of new digital fractional order integrator is better than conventional digital fractional order integrator.更多还原