- frequency domain method
下载手机词典可随时随地查词查翻译
频域法的英文
例句与用法
- 更多例句： 上一页 下一页
- The other is the modern frequency domain method performed by rosenbrock . the design objective is the diagonal dominance , not the diagonalization , so it may avoid the limitation of the complete decoupling . it is an approximate decoupling method
其二是以rosenbrock为代表的现代频域法，其设计目标是被控对象的对角优势化而非对角化，从而可以在很大程度上避免全解耦方法的缺陷，这是一种近似解耦方法。 - At present , the typic harmful current detection methods are the fast fourier transform algorithm in frequency domain and methods based on the instantaneous reactive power theory , these methods all require some transform and quick , real - time calculating , so high precision analog multipliers or high speed dsp chip with fast a / d are needed , this results in complex circuit and high cost ， which have restricted the development of apf
目前畸变电流检测常用的方法有频域法的fft和基于瞬时无功理论的畸变电流检测法。这些方法均有一定的变换，需要快速、实时运算，因此必须使用高速的数字微处理器和高性能a / d转换器，这必将大大提高系统成本，使得电路结构复杂，在一定程度上限制了有源滤波器的发展。 - The unfocused hologram of lensless fourier holography are also discussed , and a way to revise the reconstruction image of unfocused hologram is presented . ( 2 ) the reconstruction of image plane hologram is analyzed by plane wave theory . the image plane holograms of transparent and opaque objects are also obtained by using fibers
( 2 )用角谱理论分析了像面全息图的再现过程，采用光纤传光分别拍摄了透射和反射物体的像面全息图，并利用频域法对全息图进行数值再现，得到了物体较清晰的再现像。 - This thesis describes the three important methods for designing pid controller : imc - based method , frequency method and direct synthesis method . we respectively design the pid controllers for the first - order plus dead - time processes , second - order plus dead - time processes , non - minimum phase processes , integrating and unstable processes , then , performance assessment and robustness metrics are used to compare the pid controllers of the individual process
论文着重研究了pid控制器的三种重要设计方法：内模法、频域法和直接综合法，并从确定性性能指标和鲁棒性性能指标的角度，比较这些设计方法在一阶加纯滞后、二阶加纯滞后、非最小相位、积分和不稳定过程pid控制器设计中的应用效果。 - As the military and industry is developing dramatically , to enhance the low - contrast digital image has become one of the important areas in image processing . there are two traditional methods to enhance the low - contrast digital image : the methods based on frequency and the method based on time . the histogram enhancement , the most popular way to enhance , is representing the latter one ; while the methods based on frequency often uses wavelet transform , ft ( flourier transform ) , dct ( discrete cosine transform ) to enhance
随着军事和工业上的发展需要,低对比度数字图像的增强越来越成为数字图像处理中的一个重要领域,传统的增强方法分为频域法和空域法两大类,其中空域法的代表为直方图增强法,这也是最为流行的增强方法,频域法中用的较多的是基于小波变换,傅立叶变换和离散余弦变换的增强方法,本文介绍的是基于小波神经网络的频域增强法。