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gm(1-1)
说明： 自己编的一个GM11模型程序，里面包含了加和等基本的MATLAB编程(Own a series of the GM11 model program, which includes Canada and other basic MATLAB programming)
- 2011-03-31 10:52:47下载
- 积分：1
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G-Rilling
HHT变换的三种方法 Matlab
HHT变换的三种方法 Matlab(HHT transform three ways three ways Matlab HHT transform Matlab)
- 2011-05-03 20:59:25下载
- 积分：1
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FDTD_Perf3D.tar
Analyze performance of 3D FDTD algorithm for large systems.
- 2014-09-16 17:46:39下载
- 积分：1
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time-shift
信号的时移
y(t) = x(t - t0)
其中，t0为位移量。若t0为正数，则y(t)等于将x(t)右移t0秒之后的结果(This program is used to implement the time-shift operation )
- 2010-06-01 14:56:51下载
- 积分：1
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HHT-CODE
画出每个IMF分量及最后一个剩余分量residual的图形 画出每个IMF分量及剩余分量residual的幅频曲线 用Hilbert变换直接求该信号的瞬时频率 计算HHT时频谱和边际谱(Draw each IMF component and the last one remaining residual component graphics draw each IMF component and the amplitude of the remaining component of the residual frequency curve directly seeking the instantaneous frequency of the signal with the Hilbert transform spectrum and marginal spectrum calculation HHT)
- 2013-03-10 17:51:58下载
- 积分：1
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Channels
描述了无线通信系统仿真的信道仿真部分，非常详细，请大家下载。(Describes the simulation of wireless communication system simulation part of the channel, very detailed, please download.)
- 2010-11-24 09:07:23下载
- 积分：1
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DBF_matlab
对16阵源的回波信号进行数字波束合成，包括回波信号仿真、权值进行泰勒加窗、数字混频、波束合成处理的仿真(16 sensor array digital beam echo signal synthesis, including the echo signal simulation, the value of the Tai Lejia windows, digital mixing, beam forming processing simulation)
- 2011-01-03 17:23:32下载
- 积分：1
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renkoumoxing
本文区别于其他传统的人口预测模型，深入分析了当前中国人口的基本情况，以及
最近几年中国人口的发展情况与趋势，针对中国人口基数大、男女比例不协调、乡村人
口城镇化加速、人口老龄化日益严重等显著特点，在各年龄段生育率短期内保持不变的
假设下，建立基本的人口转移回归模型，用于模拟预测短期内中国各类人口数量发展变
化。该模型预测结果显示，中国人口在未来十几年内增长一定幅度后开始下降；与此同
时，人口老龄化、男女比例失调等问题日益严重。该模型短期内的预测效果比较好。
为了使中国将来的人口发展健康、平衡，综合考虑中国以及欧洲一些发达国家和亚
洲一些实行计划生育较早的国家以前以及当前的一些情况，本文提出了修改计划生育政
策的建议。面对日益严重的老龄化现象，我们提出生育率应该参考老龄人口比例这一新
思想，并建立生育率与老龄人口比例的关系模型，用于长期人口的预测。预测结果显示
中国总人口在短期内持续上升，在2025 年到2040 年之间基本保持在14.6 亿的最大值，
然后开始缓慢下降。
两个模型的结果均显示，中国将会面临严重的老龄化和男女比例不协调两个问题。
最后我们提出了适当措施以缓和这两个问题带来的影响。(This is different from other traditional population projection model, in-depth analysis of the current basic situation of China s population, and
In recent years the development of China s population and the trend for China s huge population, gender disharmony, rural people
I accelerated urbanization, the growing aging population and other significant features in the short term fertility of all ages remain unchanged
Assumption, the establishment of basic population transfer regression model, to simulate and predict the short term development of China s various types of population change
Of. The predicted results show that China s population growth in the next decade began to decrease after a certain extent and the same
When an aging population, gender imbalance and other growing problem. The model predicted the short-term results were better.
To make the development of China s future population health, balance, considering China and some developed countries in Europe and A)
- 2010-05-13 11:54:40下载
- 积分：1
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chaos
matlab编程观察混沌系统的相空间情况变化(matlab programming phase space of chaotic systems observed changes in circumstances)
- 2011-09-26 16:20:09下载
- 积分：1
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izak
对输入的信号进行zak逆变换，观察滤波后的信号在时域的分布情况(used to analysis the izak transform, so that wo can know the distribution of the processing signal)
- 2014-12-02 09:53:34下载
- 积分：1
