A new method of truncation MR artifact reduction is proposed in this paper.
本文提出一种消除磁共振图像截断伪影的新方法。
This method is based on the techniques of block truncation coding and vector quantization.
该方法是以分块截断编码技术和矢量量化技术为基础的编码方法。
This paper introduces the theory of the phase-locked loop (PLL) and the direct digital synthesis (DDS), a method to improve the precision of DDS and reduce its phase truncation error is also given.
介绍了锁相环(PLL)技术和直接数字式频率合成(DDS)技术的基本工作原理,给出了一种提高DDS输出频率精度及减小其相位截断误差的方法。
SADI method and a spline method of fractional steps in each coordinate direction as well as truncation errors and its stability are briefly reviewed.
简要评述了SADI方法和样条方法在每一坐标方向的分步计算方法、截断误差和稳定性。
With consideration of the effects of phase characteristics, direct component and digital truncation, a method for extracting wavelet near a well by using seismic and log data is proposed.
提出了一种利用地震和测井资料、综合考虑子波相位特性、直流分量和截断效应的影响,提取井旁子波的方法。
Taking one-dimensional diffusing equation as the object of study, a method of undetermined coefficients was given. Then gave two examples and analyzed their stability and truncation error.
针对一维扩散方程,给出一种新型差分格式的待定系数法,并以两种新型差分格式为例进行稳定性和截断误差分析。
The influence of modal truncation was also discussed and its related compensation method was suggested.
此外,研究了模态截尾对算法的影响以及补偿方法。
According to this method all the DDS output frequencies have no phase truncation noise, so the phase noise of the tuner local oscillator is greatly (improved.)
应用该方法可使其在所用频率点上无相位截断噪声,从而使调谐器本振的相位噪声大大改善。
In addition, to improve the usability of the results, a threshold modification method was proposed to reduce truncation error and propagation error in mining process.
另外,为了提高挖掘结果的可用性,设计了一个阈值修正的策略来减小挖掘过程中的截断误差和传播误差。
For the choice of bus lines, then use the line reservations, line cancellation, line extension, line truncation, diversion routes and line combined adjustment method.
对于公交线路的选择,则采用了线路保留、线路取消、线路延长、线路截短、线路改道和线路合并的调整方法。
A method to treat stochastic dynamic equation of complicated structure by means of modal truncation method and to compute response statistics of dynamic system in the time domain is presented.
本文提出了用模态截断法处理复杂结构的随机振动方程、及时域上计算系统随机响应的方法。
A method is presented here for color image compression which is based on efficient combination of Block Truncation coding (BTC) and Principal Component Analysis (PCA).
本文提出的彩色图象压缩方法基于BTC(块截断编码)和PCA(主成分分析)的有效结合。
CGMIL method is situated between MIL and balanced truncation in performance of model reduction and has advantage among the model reduction methods based on the information theoretic methods.
CGMIL方法在信息类模型降阶方法中有很强的优势,在性能上介于MIL和平衡截断之间。
The spectrum characteristics of the phase truncation error and amplitude quantization error are analyzed by the method of Fourier series.
介绍了直接数字频率合成技术以及分析其杂散误差,对相位截断误差和幅度量化误差进行了傅立叶级数分析研究。
Because the liquidity risk of open-end funds is mainly from large amounts of redemption, it is more appropriate to predict the large amounts of redemption by using truncation distribution method.
由于开放式基金流动性风险主要来自于大额赎回量,因此使用截尾分布方法预测未来近期的大额赎回量更合适。
The principle which will decide the value of the truncation index N not only insures the computing precision for T-matrix method but also ensures the computing convergence.
取值的原则是既要保证T矩阵方法的计算精度也要保证计算的收敛性。
The correlation method and FFT method of the power spectrum estimation could not completely reflect the concept of the power spectrum of the non-stationary random signals because of data truncation.
对于非平稳随机信号的功率谱分析,采用自相关函数傅里叶变换和直接傅里叶变换分析时,由于存在数据截断,二者从概念上都不能很好地反映随机信号的功率谱。
The correlation method and FFT method of the power spectrum estimation could not completely reflect the concept of the power spectrum of the non-stationary random signals because of data truncation.
对于非平稳随机信号的功率谱分析,采用自相关函数傅里叶变换和直接傅里叶变换分析时,由于存在数据截断,二者从概念上都不能很好地反映随机信号的功率谱。
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