The computational complexity of fast time delay MUSIC method is two orders of magnitude lower than tradition MUSIC method by rebuild received signal covariance matrix. The later proposed method build switched beam matrix according to time distribution of signal time delay, and then use Fast time delay MUSIC method to estimate time delay. The function of switch beam matrix is equivalent to time band-pass filter. The beam cover area is pass band of the filter and the noise outside the area is removed. Therefore, the later proposed method has more excellent resolving power of time delay estimation in low signal-to-noise ratio.
快速时延MUSIC法通过重构接收信号协方差阵，与传统的MUSCI时延测量法相比，运算量减小约2个数量级；后一种方法根据信号时延的时间分布形成波束转换矩阵，再用快速MUSIC法做时延估计，波束转换矩阵的作用相当于一个时间带通滤波器，其中波束所覆盖的时间区域则相当于滤波器的通带，使波束覆盖时间以外的噪声得到有效抑制，因而算法在低信噪比条件下与参照算法相比具有更优时延分辨性能。
And the traditional passive filter`s function is also limited for avoiding the resonance and harmonic enlarging. The auto-compensator and harmonics shielding converter transformer can be used to solve these problems, which is based on the principle of the winding ampere and turn`s balance. This paper elaborates this kind of transformer filter mechanism. In the view of the HVDC system, a new winding connection plan is proposed, and the filter optimization model is created.
作者基于自耦补偿与谐波屏蔽的换流变压器，针对某实际的HVDC模拟系统，提出了与该变压器配套的滤波装置的接线方案，并将外罚函数法和遗传算法相结合，对上述滤波装置进行优化设计，建立了以初期投资最小为优化目标、满足系统无功需求的滤波器优化配置的数学模型。
The signal distortion during wave propagation from the earthquake sourc e to the surface and the influence caused by the recording system as well as the sampling procedure are discussed, The general principles and concepts in seism ic signal processing are introduced, The detailed discussing on a simple RC filter shows some general concepts of the system theory, suc h as linear and time invariant system, Fourier and Laplace transform, convo lution, frequency response function, transfer function and pole, All these conc epts are the fundamentals of digital seismology.
讨论了地震波在传播过程中可能引起波形变化的一些因素以及记录系统和采样处理过程所产生的影响，介绍了地震信号处理中的一般原理和概念，通过对简单的RC滤波器的讨论，揭示了系统理论的一些基本概念，如线性时间不变系统、傅里叶变换和拉普拉斯变换、褶积、频率响应函数、传递函数和极点等，为讨论数字地震信号的处理奠定了基础。
Is directed, above, the depth absorption filter function.
具有定向、分段、吸附的深度过滤功能。
The filter is obtained by making the amplitude for filter function equate to 1 and only encoding the phase.
本文介绍一种用计算全息方法制作的纯位相信息自聚焦匹配滤波器。
The method combined gray level morphology filter and target probability distribution function matching technique.
该算法主要基于灰度形态学滤波和目标概率分布函数匹配两种技术。
Some methods have been used to overcome the local extremum of MI function, such as use high-order interpolation, decrease gray level, use Median filter.
许多学者对此做了大量研究，提出了诸如高阶插值法、减少灰度级数、中值滤波等解决方法。
Introduction was made to the design method of digital filter based on window function, basic concept and category, co- mparing the performances of band-stop filter with rectangle window and Hamming window, giving out simulation results.
介绍了基于窗函数的数字滤波器设计方法、基本概念及分类，比较了施加矩形窗和海明窗的带阻滤波器的性能，给出了仿真结果。
This paper introduces a novel technique for estimating the signal power spectral density to be used in the transfer function of a microphone array post-filter. The technique is a modification of overestimation of noise power spectral density of the existing Zelinski post-filter and McCowan post-filter, which utilize the auto- and cross- spectral densities of the signals. Near-field compensation is taken into account.
介绍了一种用于近场麦克风阵列后滤波语音增强的方法，避免了现有的利用自功率谱密度和互功率谱密度的Zelinski和McCowan后滤波器中噪声功率谱过估计的问题，并加入了近场传播的幅度衰减补偿和相位延迟补偿。
The method is based on the Genetic Algorithm and constitutes the fitness function with improvement factor, passband width and ripple of a filter. It speeds the search process and achieves near-global optimum parameters by means of the GA.
该方法以遗传算法的基本思想为基础，利用滤波器的改善因子、通带宽度和通带波纹来构成适应函数，并用GA来加快参量搜索速度和获取全局近似最优解。
The function simulation, synthesis and postsynthesis simulation are achieved and the ASIC design is under the process of SMIC 0.18 μm. raise cosine filter; CSD; sub-structure sharing; PHS
本文研究重点在滤波器系数运算的高效精简，运用C，RTL代码实现补码与CSD转化和升余弦滤波器的ASIC前端设计。2理论2.1成形滤波器用冲激响应表示，Nyquist准则可以叙述为：h=sinπt
The article introduces the structure and property of GZF type high frequency and librate bag filter with opposite inhale cleaning dust, analyses the exsiting problems in practice, and point out two plans of improving its function.
通过介绍，分析GZF型高频振动反吸清灰袋式除尘器的结构，原理及在实际运行过程中存在的问题，提出了二种对其性能改进的方案。
Using MATLAB to deal with images of various functions and noise filter function.
详细说明：用MATLAB来处理图像的滤波器各种函数和噪声函数。
The prepro-cessing function consists of a median filter and an averaging filter.
预处理功能包括中值滤波器及均值滤波器。
The system adopts the dual-lock-phase circuit and the compound filter and has the function of digital judgement.
文章针对双光路膜厚监控原理，设计了双锁相放大电路、复合滤波处理和数字判断等一套微弱信号优化处理方案，并在VC++6。
IE based Browser, multy function, can filter web page, clear browse history, and so on.
详细说明：IE浏览器，功能丰富，可以设置网页过滤，清除历史记录等。
For acquiring the mean line of workpiece profile, a new kind of digital smoothing filter based on cubic generalized spline function was proposed.
为了提取工件表面轮廓中线，给出了一种基于三阶广义B样条函数的数字光滑滤波器。
The signal transfer function and noise transfer function of BPSDM can be designed independently, and STF will have sharp bandpass filtering for input signal to relax the requirement of extra IF filter. The switched-capacitor technique compatible will be chose to realize the BPSDM circuit.
整个带通三角积分调变器将以可分别设计 BPSDM 之杂讯转移函数(Noise transfer function，NTF)及信号转移函数(Signal transfer function，STF)的架构去实现它的转换函数，它可增加对输入信号的滤波功能，降低对额外中频滤波器的要求，在电路上采用交换电容(Switched-capacitor)技术来实现。
The wavelet function corresponding to a certain scale can be regarded as the transfer function of a band-pass filter according to the definition of CWT, thus, sampling the signal and the wavelet function respectively, the wavelet coefficients at this scale can be obtained by convolving the two time series.
根据CWT的定义，可将某一尺度下的小波函数看作一带通滤波器的传递函数，于是对信号和小波函数分别进行采样后，再利用快速傅里叶变换实现两个序列的线性卷积，便能求出相应尺度下的小波系数。
The filter test head is heated with band heater and a digital controller regulates the temperature of the entire filter head very accurately with auto tuning function.
过滤测试头通过带状加热器加热，同时通过一个数字控制器和自动调整装置精确地控制整个过滤测试头的温度。