flappybird

a hebb algorithm for neural network

main executing reference usage: usage_timeDifference.m Sample output: The time interval between earierTime [09-Sep-1900 09:09:18] and laterTime [31-Oct-2010 23:33:08] is 110 years, 79 days, 14 hours, 23 mins, 50.17 secs. The objective is to compute the time interval taking into account the leap days that are subsumed within the time interval. Note: The logic subsumes the time interval by yearEnd, monthEnd, dayEnd - timeEarlier (within that year) + time interval (excluding that 2 years) + timeLater - yearEnd, monthEnd, dayEnd (within that year) It differentiates the earlier time and later time, ie. timeDifference (earlierTime, laterTime) gives the same result as timeDifference (laterTime, earlierTime). leapDayHasPassed.m illustrates a possible approach to determine if a certain day of concern is already over at a given time. Caveat: does not include leap secs

本人编写的BPAmatlab程序，用于神经网络学习。(I prepared BPAmatlab procedures for neural network learning.)

通过MATLAB平台对通信仿真，研究讨论Turbo码的编译码结构，四种Turbo码译码算法，讨论Turbo码中几种常见的交织器，利用MATLAB软件平台进行并行级联Turbo卷积码的性能仿真，仿真评估了不同设计参数对Turbo码性能的影响。(Through MATLAB simulation platform for communications, research and discussion Turbo code decoding structure, four kinds of Turbo code decoding algorithm, discuss several common Turbo code interleaver, using MATLAB software platform for parallel concatenated convolutional codes Turbo Performance Simulation , simulation and evaluation of different design parameters on Turbo code performance.)

一种自适应的非局部均值滤波器，降噪活细胞图像和完善 粒子探测(An adaptive non-local means filter for denoising live-cell images and improving particle detection)

说明：  无约束一维极值问题中的抛物线和三次插值法，例程可调(Unconstrained extremal problem in one-dimensional parabolic and cubic interpolation method, routine adjustable)

plot the pskrates .Useful for the beginners.

钢琴演奏评价系统研究 关键词：音乐识别特征提取 STFT 调式自动判别匹 配比较(Piano Performance Evaluation System Keywords: music recognition feature extraction STFT mode automatically identify matching comparison)

ASK 调制与解调源程序，采样分析误码率，采样点多，图像清晰。(ASK modulation and demodulation source, sampling and analysis error rate, sampling point more clear image.)

仿真程序模拟产生理想点目标的回波，并采用频域相关方法（以便利用FFT）实现脉冲压缩。(Simulation program simulated the ideal point target echo, and the use of frequency-domain correlation method (to take advantage of FFT) to achieve pulse compression.)