ofdmphn_Evm

说明：  一套非常漂亮的图片站程序，以前本人用过的，而且利于排名！(A very beautiful picture at stations, previously I used, but also helps to rank!)

denoise In BayesShrink[5] we determine the threshold for each subband assuming a Generalized Gaussian Distribution(GGD) . The GGD is given by GG¾ X ¯ (x) = C(¾ X ¯ )exp¡ [® (¾ X ¯ )jxj]¯ (6) ¡ 1 < x < 1 ¯ > 0, where ® (¾ X ¯ ) = ¾ ¡ 1 X [ ¡ (3=¯ ) ¡ (1=¯ ) ]1=2 and C(¾ X ¯ ) = ¯ ¢ ® (¾ X ¯ ) 2¡ ( 1 ¯ ) and ¡ (t) = R1 0 e¡ uut¡ 1du. The parameter ¾ X is the standard deviation and ¯ is the shape parameter It has been observed[5] that with a shape parameter ¯ ranging from 0.5 to 1, we can describe the the distribution of coefficients in a subband for a large set of natural images.Assuming such a distribution for the wavelet coefficients, we empirically estimate ¯ and ¾ X for each subband and try to find the threshold T which minimizes the Bayesian Risk, i.e, the expected value of the mean square error.

Tools to matlab optimization

DWT implemetation using matlab

使用自适应滤波器实现未知系统识别，里面包括 RLS法和LMS法(Unknown system using an adaptive filter to achieve recognition, which includes RLS method and the LMS method)

it shows a method on how to place an image in matlab and use it

一些关于svpwm的论文，有仿真的，也有设计逆变器的，大部分是网上收费的(SVPWM on paper, have the simulation, but also has the design of inverter, the majority of Internet charges)

编程产生一组随机的0、1二进制比特序列，分别用2ASK, 2FSK, 2PSK和2DPSK四种调制方式把它们调制到一个较高的载频上，调制参数自定，请给出前8个比特所对应的时域波形。 画出上述四种信号通过高斯白噪声信道后的相干解调器和非相干解调器的原理框图，并给出判决前的观测值的数学表达式。注: 如果某些调制方式无法进行非相干解调，请给出原因。 根据题2中的观测值的数学表达式，分别编程实现判决过程，将判决结果与原数据作比较，统计出各自在不同比特信噪比 值下的误比特率 ，然后画出 与 (dB)的曲线。建议 的范围为 0dB 到10dB, 以1dB为间隔。 将上述仿真得到的误比特率曲线与各自的理论值画在同一张图上进行比较并讨论。同时， 比较和讨论不同调制与解调方式的差错性能区别。(emulate 2ASK, 2FSK, 2PSK and 2DPSK using matlab)

说明：  《MATLAB 7.0编程基础》第6章 （源码实例）主要讲解MATLAB图形基础("MATLAB 7.0 programming foundation" Chapter 6 (source code examples) mainly based on MATLAB graphics)

方向角度对目标雷达截面积影响的GUI界面(perspective of the direction of a target radar cross-sectional area of GUI interface)