digital approximation meaning in Chinese
数值逼近
数字逼近
Examples
- Based on the fourier series digital approximation method , the optimal design of flat - top and high isolation pass band frequency response interleaver has been studied . at last a solution of high isolation ( > 45db )
用傅立叶级数展开数值逼近的方法进行了高隔离度平顶通带频响全光纤奇偶交错滤波器的优化设计，提出了隔离度大于45db通带平坦滤波器的制作方案。 - But it has intrinsic defects such as low convergence and local minimum because the negative gradient method is adopted in weight adjusting . an improved rbf network is introduced which has the advantage in digital approximation , classification and learning rate and at the same time , the corresponding sensibility is also analysed
但bp网络在用于函数逼近时，权值的调节采用的是负梯度下降法，这种调节方法有它的局限性，如收敛速度慢和容易陷入局部极小等缺点。