matlab_SoundWave_filter

数字信号处理及MATLAB实现 具体的例子与码源 很能帮助初学者学习(Digital signal processing and MATLAB implementation specific examples with source code is to help beginners to learn)

本程序有本人实测的喷油脉宽波形，有基于小波的分析和希尔伯特黄分解的分析！很好用(Including injector-pulse-width waveform，there are some useful analysis based on wavelete and hilbert huang transform.)

对图像的相关性进行算法研究，制定图像压缩算法(The correlation between the image algorithm, image compression algorithm developed)

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)

产生两不迥频率的信号，并对两信号作复数FFT变换，找出频率为50Hz的信号对其进行能量计算(Two distant signal is not generated frequency, and two signals for complex FFT transform to identify the frequency of 50Hz signal to calculate its energy)

matlab模拟退火智能优化算法，求取最短路径，已通过验证(matlab simulated annealing optimization algorithm intelligent, calculating the shortest path has been verified)

这是MATLAB进行信道建模的例子，有兴趣的同志可以下来看看，总有帮助的(This is the MATLAB modeling channel to the example of the comrades who are interested can look at it, there is always help)

惯导解算程序,武汉大学课程作业，自己编的，仅供参考(Inertial navigation solution)

不考虑不平衡磁拉力（UMP），转子系统在自身的质量、阻尼、弹簧等作用下，轴心轨迹求解方法(unbalanced magnetic pull is not considerated and rotor center orbit is gotten)

这是一个遗忘因子递推最小二乘法的辨识程序，可辨识系统参数。(This is a forgotten factor recursive least square mathod to identify the system parameters.)