Based on the multivariable analog of civcle criterion , an observer is designed to estimate the system states and hence the dynamical equations satisfied by the estimation error are derived first 基于多变量的圆判据设计观测器来估计系统的状态,进而给出了观测误差满足的动态方程,然后利用积分反推方法,构造性地设计出了输出反馈镇定控制器。
Because the camdf conquers the defect of traditional amdf , the new pitch detection algorithm not only efficiently decreases the estimation errors , but also simplifies the detection process and improves the precision of estimated value 由于camdf克服了传统amdf函数的不足,新的基音检测算法不仅有效地降低了误判率,而且简化了基音检测过程,提高了估计值的精度。
Although superficially the three methods above are independent of each other , actually they are highly relevant to each other . because , using accruals as the earnings quality proxies , is actually through using the estimation errors and manipulate 从单个评价标准来看,在盈余持续性方面,各盈余质量指标eq1 - eq5表现得都不好,但相对而言, eq1 、 eq2和eq5的表现要稍好一些。
Experimental results show that the estimation error of snr and psnr is less than 1 db . according to this relationship , we design an adaptive insertion strategy that can be employed to embed watermarks in natural images with assigned snr or psnr 建立了分块dct变换域密信信号嵌入深度与含密图象客观降质评估量之间的关系,得到了可以实现恒降质信息隐藏的嵌入深度估计公式。
According to the characteristics of dtc ( direct torque control ) in induction machine , this paper analyzed the estimation error of flux linkage and torque , and introduced an improved method of flux estimation , a compensation method based on low - pass filter 摘要根据感应电机直接转矩控制的特点,对低速下磁链观测误差产生的原因进行了分析,给出了一种磁链观测的改进方法低通滤波器补偿法。