Modulization is one of the directions in power electronics . multi - module redundant parallel operation is a good solution to realize high reliability and large capacity of power system 模块化被公认为当今电源变换技术发展的重要趋势之一，多模块冗余并联运行方式是实现高可靠性、大功率电源系统的优选方案。
Abstract : discrete wavelet transform ( dwt ) is widely used in the fields ， such as graph , picture , audio processing , video processing and digital signal processing . due to its excellent characteristics , it has achieved better effect 摘要:小波变换技术已广泛地应用于图形、图像处理，语音处理，视频处理以及数字信号处理等领域。
The coordinate transformation technology is adopted to compensate real time attitude angles of the swinging ship on the azimuth and pitching axis of tracking equipment in order to stabilize los and improve precision 故采用坐标变换技术，在跟踪设备的方位和俯仰轴上对船摇姿态角进行实时补偿，达到视轴稳定、提高精度的目的。
Based on investigation of advanced technology at foreign 1abs , this article introduces the techniques concerning the view angle and view distance enlargement , image quality improvement , as well as the digitalimage preprocess 并参考国外实验室的先进技术，介绍了增大视角，视场和改进像质的方法，以及数字合成全息图中的图象变换技术。
In the meantime , the canonical transform technique is generalized and adopted to solve decoupling problem of maneuver target " current " statistic model , and the transformation matrix is derived for the 2d radar measurement 同时将正规变换技术推广应用到机动目标“当前”统计模型下的解耦问题，推导了雷达二维观测下的正规变换矩阵。
We all know that the output of ultraviolet ( uv ) laser mostly depends on the conversion of nonlinear frequency , thus a new kind of excellent nonlinear optics ( nlo ) crystal is very important for the output of new wavelength 紫外波段激光的输出主要采用频率变换技术来实现，因此一种好的非线性光学晶体对于产生新的波长是非常重要的。
The measured tangential force , tangential inertial force and normal vibration acceleration are decomposed using a discrete wavelet transform . the relation among these three dynamics state variables is investigated 利用小波变换技术对测量的切向力、切向惯性力和法向振动加速度进行分解，对这些动力学变量之间的相互关系进行了深层次的研究。
Therefore , the study on single - stage pfc and converter technique has important significance for restraining harmonic pollution , founding green power supplies and realizing miniaturization and lightweight of switching power supplies 因而研究单级功率因数校正及变换技术对抑制谐波污染，开创绿色电源，以及实现当今开关电源的小型轻量化具有重大意义。
In fingerprint embedding , we adopted the dwt technique and spread spectrum algorithm that make the fingerprint embedded into data imperceptible and robust , and in the extracting process used correlating algorithm 在指纹嵌入技术研究中，采用了小波变换技术及扩频嵌入算法，使指纹嵌入到数字作品后具有良好的不可感知性及稳健性，并用相关检测算法提取指纹。
It ' s a novel inductive electrical power deliver that deliver power from stillness apparatus to moving electrical apparatus . this technology is based on power electronics and electromagnetic induction , and realized by applying modern control theory 该技术利用现代电力电子能量变换技术、磁场耦合技术，借助于现代控制理论和手段实现能量从静止设备向可运动设备的传输。
