LDPCcodenintroduction

利用c++编程，该程序实现了不使用标准块输入访问simulink信号(Using c++ programming, the program achieved without the use of standard access simulink block input signal )

频偏估计算法利用已经完成定时同步的同一个训练序列来完成小数频偏估计和整数频偏估计。(Offset estimation algorithm uses the same timing synchronization has completed a training sequence to complete the fractional frequency offset estimation and integer frequency offset estimation.)

matlab频谱分析 很有用(matlab spectrum analysis is useful)

设计一个IIR数字低通滤波器， 逼近一组模拟滤波器的指标参数（通带截止频率Wp=2*pi*2000rad/s,阻带边界频率Ws=2*pi*3000rad/s,通带波纹 Rp=3db, 阻带衰减Rs=15db, 采样频率f=10000Hz）； 分别用脉冲响应不变法和双线性变换法实现设计，列出传递函数并描绘模拟和数字滤波器的幅频和相频响应曲线。用上述设计滤波器完成几组给定信号的滤波，证明滤波器的有效性和滤波范围限制.(Design a IIR digital low-pass filter, approaching a group of analog filters indicator parameters (pass-band cut-off frequency Wp = 2* pi* 2000rad/s, stop-band edge frequency Ws = 2* pi* 3000rad/s, pass-band ripple Rp = 3db, stop-band attenuation Rs = 15db, the sampling frequency f = 10000Hz) were used to change the impulse response method and bilinear transformation method for design, list and describe the transfer function of analog and digital filter amplitude-frequency and phase-frequency response curve. A filter was designed with the completion of the above-mentioned groups of a given signal filtering, to prove the effectiveness of filters and filter limit)

this word is a code for histogram equalisation to enhance quality of picture

说明：  平移变换平移法(cycle_spinning)消除gibbs效应，相当有用的程序(The translation of the translation transform method eliminate gibbs effect )

different distance metrics in matlab

this ios the code for ofdma

化学计量学PLS－Toolbox matlab 说明手册，非常优秀的参考资料。(Chemometrics PLS-Toolbox matlab instruction manual, excellent references.)

SPIHT-set partitioning in hierarchical tree algorithm. it is also used for compression. here list of insignificant pixels, list of significant pixels, list of significant sets