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shuxuejianmo_4
说明: 讨论资金积累、国民收入、与人口增长的关系.
(1)若国民平均收入x与按人口平均资金积累y成正比,说明仅当总资金积累的相对增长率k大于人口的相对增长率r时,国民平均收入才是增长的.
(2)作出k(x)和r(x)的示意图,分析人口激增会引起什么后果.
(Discussion of capital accumulation, income, and the relationship between population growth. (1) If the national average income per x and y is proportional to the accumulation of funds that only if the total funds accumulated in relative growth rate k of the relative growth rate than the population r when per capita income is growing. (2) to k (x) and r (x) of the diagram, analysis of population growth will cause the consequences.)
- 2009-07-24 23:00:08下载
- 积分:1
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brown
布朗运动的模拟:模拟了在一个有界平面内,N个点进行布朗运动后的分布情况(brownian motion)
- 2010-06-02 00:21:15下载
- 积分:1
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jsm-1
说明: matlab中最优化函数fmincon 求解非线性规划问题(fmincon used to solve nonlinear programming problem)
- 2010-04-25 22:16:24下载
- 积分:1
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hamming
信源产生、信道编码、调制、信道传输、解调、信道译码、差错比较等通信过程的Simulink仿真方法。分析QPSK调制方式下Hamming编码方式在不同信噪比下的通信质量。
(Generated source, channel coding, modulation, channel transmission, demodulation, channel decoding, error comparison of the communication process of the Simulink simulation. QPSK modulation mode of Hamming encoding different signal to noise ratio in the quality of communication.)
- 2011-06-02 16:49:49下载
- 积分:1
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Mie_Matlab
用Matlab编写的Mie theory计算程序。在光子学中运用广泛,使用非常方便。(prepared using Matlab Mie theory calculation procedures. Photonics in extensive use, the use is very convenient.)
- 2007-03-30 06:37:09下载
- 积分:1
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bjp
fft与边际谱的对比,并画出hilbert图和三维时频谱图(compare fft with marginal spectrum and plot the hilbert figure and 3d time-frequency picture)
- 2017-01-08 08:20:58下载
- 积分:1
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PROGRME
蚁群算法很好的一个MATLAB程序资料,希望大家支持(ACO)
- 2009-10-18 17:34:17下载
- 积分:1
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communicate
本文利用Matlab/Simulink软件,以无线电调幅广播发射与超外差接收系统为例,对“通信电子电路”课程中重要的通信系统单元电路进行了仿真和分析,给出了仿真模型和较为详细的各点仿真波形,并结合实际给出了多路系统的仿真结果。将该Matlab仿真引入课程教学。可以使学生在学好课程的同时,了解和掌握通信系统建模与仿真的方法。(In this paper, the use of Matlab/Simulink software to the radio superheterodyne AM radio receiver system with the launch as an example, the " communication electronic circuits" course an important element of communication system circuit simulation and analysis, the simulation model and the more detailed Simulation waveform points, combined with the actual multi-channel system is given the simulation results. Matlab simulation of the introduction of the teaching. Will enable students to study courses at the same time, understanding and knowledge of modeling and simulation of communication systems approach.)
- 2009-05-12 19:53:11下载
- 积分:1
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Desktop
经典的功率谱和 双谱估计,很好,看看能用上的。(Classic power spectrum and dual spectrum estimation, well, look at can be used on.)
- 2013-07-24 09:05:30下载
- 积分:1
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Monte_Carlo_Simulation_with_Simulink
蒙特卡洛模拟蒙特卡罗模拟因摩纳哥著名的赌场而得名。它能够帮助人们从数学上表述物理、化学、工程、经济学以及环境动力学中一些非常复杂的相互作用。
数学家们称这种表述为"模式",而当一种模式足够精确时, 他能产生与实际操作中对同一条件相同的反应。但蒙特卡罗模拟有一个危险的缺陷: 如果必须输入一个模式中的随机数并不像设想的那样是随机数, 而却构成一些微妙的非随机模式, 那么整个的模拟(及其预测结果)都可能是错的。(Monte Carlo simulation)
- 2017-06-10 14:28:01下载
- 积分:1