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Dsimplex
Dsimplex.m 对偶单纯形法求解线性规划问题(Dual simplex method for solving linear programming problems)
- 2019-03-28 10:59:52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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Optimization
约束最优化方法－－最速下降法(也叫梯度法)，是人们用来求多个变量函数极值问题的最早的一种方法。(Constrained optimization methods- steepest descent method (also known as gradient method), is used for multiple variables function Extremum Problems earliest methods.)
- 2008-12-18 18:14:07下载
- 积分：1
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14771767修正剑桥模型的源程序（FORTRAN编写）
用于abaqus二次开发材料VUMAT，为初级学者找到更简单的方法(Materials for ABAQUS secondary development)
- 2021-04-21 22:38:49下载
- 积分：1
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modeling_anelastic
粘弹性介质中面波正演模拟，基于变网格函数伪谱法模拟，模拟精度高(The viscoelastic medium surface waves forward modeling, based on a function of the variable-grid pseudospectral method simulation, simulation accuracy)
- 2020-10-12 14:27:32下载
- 积分：1
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111
三种帧同步算法的MATLAB代码,具有良好的算法效果，可以使用，请大家下载(Three kinds of frame synchronization algorithm MATLAB code, a good algorithm results, you can use, please download)
- 2021-03-12 11:19:25下载
- 积分：1
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gsl1.8
GNU Scientific Library (GSL) 是一个用于科学计算的 C 语言类库。有超过1000个函数。
(GNU Scientific Library (GSL) is a C language library for scientific computing. There are more than 1000 functions.)
- 2013-04-23 10:51:50下载
- 积分：1
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Kalman_BasedOnStatistic
Kalman滤波的一个仿真程序，基于“当前”统计模型(Kalman filter, a simulation program, based on the )
- 2021-04-15 17:18:54下载
- 积分：1
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FFT
对信号的FFT（快速傅里叶变换）变换，针对LabView内部信号。(The signal FFT (Fast Fourier Transform) transformation, the internal signal for LabView.)
- 2020-12-04 00:59:24下载
- 积分：1
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shumo
全国研究生数学建模竞赛优秀获奖论文(National Graduate School Mathematical Contest in Modeling outstanding thesis award)
- 2020-11-09 15:59:48下载
- 积分：1
