fenzhidingjie

说明：  这是基于周期图改进的welch的功率谱估计，这种方法是在经典周期图的基础上改进而来的，效果很不错(This is based on the improved welch periodogram power spectral estimation, this method is based on the classical periodogram improvement came, the effect is very good)

瑞利信道下空时编码下的MATLAB仿真 对两信道下的瑞利传输进行仿真(Rayleigh channel space-time coding under the MATLAB simulation)

针对一维非线性非平稳信号降噪的一种算法，EMD算法，这是其MATLAB代码。(An algorithm for one-dimensional nonlinear and non-stationary signal noise reduction, EMD algorithm, which is its MATLAB code.)

关于AR模型的burg、yulear功率谱估计算法，与系统自带的pburg相比，精确度更高(ar burg yulear)

多项式拟合函数，用于给定数据点的多项式拟合，区别于matlab内置的函数polyfit,但效果差别不大。(A simple way of polynomial fitting to given points ,which is different from polyfit function but with no much different in result .)

无约束一维极值问题 minGS 最小化代码(One-dimensional unconstrained extremum problem)

MATLAB案例程序集锦，有助于新手入门学习，起辅助作用(Case Highlights MATLAB programto help beginners learn, play a supporting role)

BER性能分析。参数开放，宜用。多给意见。(BER performance analysis. Parameters of open and suitable. Give advice.)

提出了一个采用(2,1,7)卷积码+QPSK的中频调制解调方案,并在Xilinx公司的100万 门FPGA芯片上实现了该系统。该系统在信噪比SNR为6dB左右时可实现速率超过1Mbit/s、误码率 小于10-5的数据传输。 (Proposed a use of (2,1,7) convolutional code+ QPSK modulation and demodulation of the IF program, and in Xilinx' s FPGA chip one million on implementation of the system. The system SNR to 6dB signal to noise ratio at about the rate may achieve more than 1Mbit/s, less than 10-5 bit error rate of data transmission.)

基于matlab的非线性方程组求解的方法(Matlab-based non-linear equation solving methods)