A supplement to filling zero in FFT

Blind Channel Estimation for Single-Carrier Block Transmission by Exploiting Zero-Padding

利用补零信息的单载波块传输盲信道估计方法

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Deriving a new regressive FFT algorithm for supply-zero data;

推导出一种补零后的递归FFT算法，改进跟踪性能；

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Then, introduce sever extension methods, such as zero extension, smooth extension and the periodic extension. Discuss their analysis and reconstruction methods, compare their advantages and disadvantage.

然后对现有的几种延拓方法进行比较，论证了补零延拓，等值延拓以及周期延拓小波分解与准确重构的方法，并比较各种方法的优缺点。

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Adding zero operation based on the image edge processing;

基于图像边缘处理的补零运算；

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Compared with traditional inverse Fourier transform method, which used zeros padding method, at the same condition of sampling resolution, the method proposed could decrease the calculation load.

与传统的数据长度补零逆傅里叶变换方法相比，在相同的采样分辨率条件下，该方法能有效减小计算量。

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By choosing the number of padding zeros and decomposition scheme, the algorithm ′ s parameters are optimized, and the computational volume of FFT in correlation processing can be significantly lowered down.

根据参数优化准则，选择合适的填零个数和DFT点数分解方式，分析出利用频域分解和频域分段两种算法，可以大大减少相关运算中FFT变换的运算量。

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Application of Robust Estimation in GPS-Based Satellite Zero-Difference Kinematic Orbit Determination

抗差估计在星载GPS卫星非差运动学定轨中的应用

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For evaluating the precision of CHAMP rapid science orbit, the more precise CHAMP zero-difference reduced-dynamic orbits offered by Technical University of Munich are compared with rapid science orbits.

利用德国慕尼黑技术大学提供的精密约化动力法轨道对CHAMP卫星快速轨道数据的精度进行了评估。

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In this paper, cycle slips and gross errors are detected, repaired and marked by automatic editing algorithm for zero-difference observations, and on this basis, using carrier phase smooth pseudoranges.

本文运用自动编辑算法对非差观测数据中的周跳和粗差进行探测、修复与标记，并在此基础上利用修复后的载波相位平滑伪距观测值。

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The mathematic model of orbit determination of GPS satellite using zero-difference data is deduced in detail.

详细推导了利用非差伪距和非差相位确定GPS卫星轨道的数学模型；

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This was no longer a zero-sum game.

这不再是一场零和博弈.

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This is your change and receipt.

这是您的找零和收据.

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Here is you change and receipt. Thank you.

这是您的找零和收据, 谢谢.

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Graduate comprehensive practice teaching is the last teaching step of talents cultivation in higher vocational schools, which aim to achieve "zero difference" of professional posts.

毕业综合实践教学是高职院校培养人才的最后一个教学环节，旨在达到与职业岗位零距离的培养目的。

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Optimization of Virtual Zero Difference Curve Model for Investment Portfolio

投资组合虚拟无差异曲线模型最优化方法

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The intelligent fitting method has more advantages than the traditional unintelligent method, such as automatically se-lecting optimum polynomials and higher precision. Optimization of Virtual Zero Difference Curve Model for Investment Portfolio

智能拟合法与传统的非智能拟合法相比具有可以自动寻求最优多项式、拟合精度高的优点。投资组合虚拟无差异曲线模型最优化方法

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The principles of non-contradiction, zero-difference and free space-time in law of freedom show that deviated rhetoric describes things and expresses concept regardless of the contradiction, difference, and space-time.

自由律的无矛盾、零差异和无时空的特性使变异修辞在表达观念或事物时不考虑事物之间、观念之间的矛盾和差异，也不考虑时空差异。

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Later one of them strengthened P as this sentence is false ( Q), responding to this and that paradox ( R), thus Q and R together challenging the law of non-contradiction.

随后其一又把P强化为本语句假（Q），响应亦此亦彼悖论（R），携手挑战不矛盾律。

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And this paper put forward a knowledge-base-consistency maintenance method which can input learning results into knowledge base after determining its non-contradiction and non-redundance.

同时提出了知识库一致性维护操作方法，使机器学习获得的新知识在确认非矛盾和非冗余后输入到原始知识库中。

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At present textbooks of logic in different editions all give indistinct field limitation for the law of non-contradiction and the law of excluded middle and meanwhile expression of basic contents of the two laws is not clear and simple.

目前，多种版本的逻辑学教材，均对不矛盾律和排中律适用范围的界定模糊不清，对这两条基本规律基本内容的表述，也不明确、不全面。

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