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chazhi
对格朗日、分段线性、三次样条插值方法的运用。(Grange, piecewise linear, cubic spline interpolation method to use.)
- 2012-07-01 02:23:18下载
- 积分:1
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high-resolution-one-dimension
高分辨率要求系统具有大的带宽,瞬时带宽的增加必将提高系统对硬件的要求,本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽,使成像具有高分辨率,采用加窗和补零方法提高信噪比,但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率,使距离像细化,并用公式说明了补零只能提高距离取样分辨率,并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感,使目标能量分散到邻近的距离单元造成距离分辨率下降,如果不事先进行速度补偿,直接对回波信号进行逆傅立叶变换,将使所成一维距离像发生频谱展宽,并伴有距离像发生平移。本文证明了当目标有径向速度时仍采用对回波信号直接进行逆傅立叶变换的方法将使一维距离像发生频谱展宽并伴有距离像发生频移,从而严重影响了一维距离像的质量。(high-resolution requirements of the system with large bandwidth, the increased instantaneous bandwidth will improve the system of hardware, In this paper, a flexible and convenient step frequency signals. Pulse frequency step-pulse waveform through the carrier frequency step to achieve great changes in the effective bandwidth. make imaging with high resolution, increasing the window and fill methods to improve signal-to-noise ratio is, However, the signal on the target radial velocity is very sensitive. Using zero-distance sampling method to improve resolution, so that distance as refinement, and formulates a zero-distance sampling can improve resolution, does not alter the frequency of the signal from stepping resolution capabilities. The signal waveform on the target radial velocity sens)
- 2007-04-07 22:15:33下载
- 积分:1
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Algorithm-Design-and-Analysis
计算机算法设计与分析(第3版)课后答案-王晓东版_打印版,整本书的课后习题答案,包括算法实现题也有。(The also Computer Algorithm Design and Analysis (3rd Edition) afterschool Answer- Wang Xiaodong _ print edition, the book Homework answer, including algorithms title.)
- 2013-04-08 10:52:50下载
- 积分:1
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Novel-Hybrid-Demodulation-Schemes
比特交织编码中的迭代解映射算法简化 复杂度比原算法降低(Bit interleaved coded mapping algorithm in the iterative solution simplifies complex than the original algorithm reduces)
- 2013-08-19 23:10:08下载
- 积分:1
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curthr1
完成地震数据的curvelet阈值重构功能算法简洁注释详细(Completion of seismic data the curvelet threshold reconstruction algorithm is simple function comment in detail)
- 2013-05-08 16:44:51下载
- 积分:1
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bisect
该function文件可以利用二分法求解方程的数值解,其中有例子(The function files can be used to solve equations numerical solution of the dichotomy, of which examples)
- 2010-10-10 11:35:26下载
- 积分:1
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clock
数据挖掘讲义第六章聚类分析,PDF文件大小约520K(Data mining handout Chapter 6 clustering analysis, PDF file size is about 520K)
- 2018-11-12 13:28:23下载
- 积分:1
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Matrix Computations 4th edition.pdf
说明: 矩阵计算英文版第4版,经典,经典,很不错!!!!!请下载!!!!!!(Matrix Computing English Version 4, classic, classic, very good!!!! Please download!!!!!!)
- 2020-06-23 22:20:02下载
- 积分:1
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polyfit
C语言实现多项式的最小二乘拟合,可用于在区间上对函数进行拟合(C language polynomial least squares fitting, can be used to fit the function on the interval)
- 2021-02-19 12:39:44下载
- 积分:1
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CalcExpress
很好的算法,可广泛用于各行业(如工控)计算组态(It s a very good arithmetic that can be used at many industries.such as industry control,for caculation configuration.)
- 2005-07-18 17:14:40下载
- 积分:1