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运筹学资料加程序,运输问题的合理方案下载。(yunchouxue )

此程序主要是详细给出了在matlab中如何求解信号的fft，包括功率谱，功率谱密度，幅度谱；(This procedure is given in detail how to solve the signal in matlab fft, including power spectrum, power spectral density, amplitude spectrum )

基于波形分集的雷达抗距离欺骗干扰方法（二）的仿真，仿真采用了简单的线性调频信号和时域脉压(Radar distance deception jamming resistance method based on waveform diversity (2) simulation, the simulation using the simple linear frequency modulation signal and the time domain pulse pressure)

为数字仿真处理软件，包括BASK，BPSK和BFSK，包括coherent和non-coherent两种方式(Processing software for digital simulation, including the BASK, BPSK and BFSK, including coherent and non-coherent two ways to)

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)

用matlab做时间序列分析，建立ARMA模型的示例程序，清晰易懂，备注完整。(Using matlab to do time series analysis, ARMA model sample program, lucid, notes intact.)

基于模型预测控制设计的无人驾驶车辆轨迹跟踪问题，内附有MATLAB程序与详细的建模过程，研究车辆转向的同学可以作为参考(The trajectory tracking of unmanned vehicles based on model predictive control design is accompanied by MATLAB programming and detailed modeling process. Students studying the steering of the vehicle can be used as a reference.)

这是姜启源教授在清华大学讲解数学建模课程的资料，对于数学建模由入门到精通十分有用(lecture in math modeling,given by Professor JiangQiyuan )

performance evaluation

Kamath于2002年提出的多频带谱减法 联合开发网 - pudn.com