gbvs

一个报童从报刊发行中心订报后零售，每卖一份报纸可赚钱a元；若报纸卖不出去，则退回发行处，每退一份要赔钱b元。每天报童卖出的份数是随机的，但报童可以根据以往卖报情况统计得到每天卖k份报纸的概率密度p(k)。 （1） 求报童每天期望收益达到最大（或损失达到最小）的定报量z。 （2） 改变参数a/b的值，观察订报量的最优值变化，画出变化曲线。 试画出仿真流程图，进行程序实现，并对仿真结果进行分析。 (A newsboy subscribe from the press after the retail distribution centers, each sale of a newspaper can make money a million if newspapers can not be sold, then returned to Issue Department, each retire to a loss of a b element. Newsboy sold shares in a day is random, but the newsboy can sell based on past statistics reported to be selling daily newspaper k the probability density p (k). (1) seeking newsboy expected profit per day to maximize (or minimize loss) reported that the volume of fixed-z. (2) change the parameters a/b values, subscribe to observe changes in the volume of the optimal value, draw curve. Simulation test to draw a flow chart for program realization, and simulation results for analysis.)

说明：  此为LDPC码的完整的编译码的MATLAB源代码。可用于通信系统的编码仿真，非常方便。(This is a complete encoding and decoding LDPC codes of MATLAB source code. Coding can be used for simulation of communication systems, very convenient.)

matlab中基于模拟退火法的粒子群BP神经网络计算程序(matlab simulated annealing method based on BP neural network computing PSO program)

这是一个利用维纳滤波方法进行消噪的MATLAB 程序，器效果比谱减法好在没有尖锐的噪声(it is a delete noise program.it is based on matlab)

很有用的代码，可用于图像拼接，由matlab实现，实现效果不错(Useful code that can be used for image mosaic, from the matlab implementation, to achieve good results)

image processing using matlab code......

信号处理工具箱函数汇总，其中包括滤波器分析与实现函数、FIR 数字滤波器设计函数等。(Signal Processing Toolbox function summary, including analysis and implementation function filters, FIR digital filter design functions and so on.)

运动误差补偿仿真 包含视线运动误差和航线运动误差，可选择单点仿真或者九点仿真 包含带有运动误差的回波产生程序和成像程序(Simulation of motion error compensation Contains the line of sight motion error and routes motion error, you can a single point simulation or emulation nine It contains the generator and echo imaging procedures with motion error)

伽利略BOC(1，1)信号和GPS C/A码信号的功率谱密度的比较(Comparison of power spectral density of the Galileo BOC (1,1) signal and the GPS C/A code signal)

说明：  数值分析中的一元二次线性方程的求解，主要是用DELPHI语言进行编程(Numerical analysis of a linear quadratic equation, is mainly used for programming language DELPHI)