LSB_random

simulation of BLDC motor using sliding mode controller

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)

DC LOAD FLOW TECHNIQUE

turbo码的MAP解码 SISO_MAP_decoding(Single input single output MAP decoding)

循环冗余码的生成和验证:数字通信中的编码分为信源编码和信道编码两大类。为了提高数字通信的可靠性采取的编码称为信道编码，又称抗干扰编码。数字通信中为了尽可能地提高通信的可靠性，需要采用信道编码技术，对可能或已经出现的差错进行控制，CRC码就是其中的一种编码技术。本实验就是编写RCR编码，可以模拟发送信息，噪声加入，检测验证，信息重发的过程!(Cyclic redundancy code generation and validation: digital communication in the coding is divided into source coding and channel coding two broad categories. In order to improve the reliability of digital communications to the code known as channel coding, also known as anti-interference codes. Digital communication as much as possible in order to improve the reliability of communication need to use channel coding techniques, which may or may control the errors that have emerged, CRC code is one of a kind of coding techniques. RCR in this experiment is to write code that can simulate send a message, noise adding, testing verification, information, process re-issued!)

designing an quadrotor with pid controller

捷联惯导系统的matlab程序源代码，包含输出代码，非常好用(The SINS matlab program source code, including the output code, it is very easy to use)

ofdm发送端和接收端，根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。(ofdm sending end and receiving end, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives.)

《MATLAB 7.0编程基础基础》源程序 第7章(Chapter 7 of the " MATLAB 7.0 programming foundation foundation source)

基于MATLAB的，求解线性方程组的雅可比迭代法和高斯-赛德尔迭代法的比较 (Than the iteration method and Gauss- Seidel iterative method based on MATLAB, solving linear equations of Jacques)