And a design example is given to prove the efficiency of this method . the fifth part is a research of application of filter banks in the image denoising . a new denoising method with optimized threshold is introduced , whose efficiency has been certified by some comparing examples 第五部分,我们研究了子带滤波器组在图像消噪中的应用,并且在完全重构格型滤波器组的基础上,提出了一种利用优化阈值进行图像消噪的新方法,对比实验的结果表明该方法可以得到良好的消噪效果。
A design example is introduced in this paper where the concrete watertight wall with low elasticity module is used to strengthen the earth - rock dam of qing shan reservoir , and it is a new type of concrete watertight walls whose elasticity module and crush strength of its wall material lie between normal and plastic concrete 本文是关于用低弹模砼防渗墙加固青山水库土石坝的设计实例,其墙体材料的弹性模量和抗压强度界于普通和塑性混凝土之间,是一种新型的混凝土防渗墙。
In the thesis , i mainly discuss the digital if process theory of the sr . chapter 2 demonstrates the sampling and quantization theory of wideband if signal , and multiple rate signal processing theory - - - - including interpolation , decimation and oversampling . chapter 3 introduces the digital up ( down ) conversion between baseband - modulated and bandpass modulated signal through orthogonal modulating ( demodulating ) , at last , after discussing fir filter ' s properties and design methods , i give a design example 主要研究了基于软件无线电的数字中频处理技术理论:第二章介绍了中频信号的采样、量化理论;介绍多采样率信号处理中的抽取与内插相关理论;第三章介绍了基带调制信号与带通信号通过正交调制解调的数字上下变频技术;最后介绍fir滤波器的特点与设计方法,并列举一个实例说明。
This paper presents a model of cosine basis functions neural network based on bp algorithm , discusses the relation between the algorithm of neural network and amplitude - frequency characteristic about the linear phase fir filter , introduces the convergence condition of neural network algorithm , and studies the optimal design example about the high - order fir double - band - pass filters 摘要提出了一种基于bp算法的正弦基函数神经网络模型及算法的收敛条件,研究了该神经网络算法与fir线性相位滤波器幅频特性的关系,给出了高阶双通带滤波器的优化设计实例。
Introducing beam ' s secondary load theory , a series of integrated calculated formula and a designed example that calculate the area of bonded material for strengthening reinforced beams under the secondary load . the bonded - strengthened beams " cracked - moment and yielded - moment can be accurately calculated by introducing the improved algorithm of moment - curvature to paper ' s program 同时,本文根据受弯加固构件的二次受力理论,提出了一整套较为完整的粘贴加固梁在二次受力情况下的正截面承载力计算公式,并给出相应的工程实例计算。