111.rar

2d radom walk from one destination to an another. zipzap bubbelz rules random words to fill the gap

傅里叶变化性质在MATLAB中的实现，时域和频域对比，以及程序仿真(Fourier nature of the changes implemented in MATLAB, time domain and frequency domain correlation, and program simulation)

这个压缩文件包含有智能算法的matlab程序，该程序可以测试(This compressed file contains a matlab program with intelligent algorithms, which can be tested.)

该程序主要用于实现施密特正交化过程，能够较好的完成程序运行(The program is mainly used to achieve Schmidt process, better able to complete the run)

这是我一自己编写的 通信系统的 QPSK的基本调制 有需要的朋友看看吧(This is what I have written a communication system for QPSK modulation of the basic right to see a friend in need)

缺失数据的填补函数，用来估计缺失的数据。 single and mutiple imputation(Solves approximation to one of several pdes to interpolate and extrapolate holes in an array )

级联积分－梳状(Cascaded Integrator–Comb，CIC)滤波器，是种高 效滤波器。它是一种线形相位FIR滤波器，由工作在高抽样率的级联理 想积分器和低抽样率的级联微分器组成,根据抗混叠和抗镜像的指标 确定所需的级联数目。 (Cascaded integrator- comb (Cascaded Integrator-Comb, CIC) filter, is the kind of high efficiency filter. It is a linear phase FIR filter, high sampling rate by the work in the cascade of an ideal integrator and a low sampling rate of the cascade differentiator formed, according to anti-aliasing and anti-mirror of the indicators to determine the number of required cascade.)

parameter stimation plus matlab has been desrcibed in this paper

matlab 产生高斯随机粗糙面的函数 输入变量为点数 长度 相关长度 均方根高度(matlab generate Gaussian random rough surface function of input variables for the points the length of root mean square height correlation length)

数字基带系统将数字信号从时域上看时数字滚降，需要画出滚降前后的波形展示出来。频域上带宽变化了。输入滤波器之前的波形与采样判决之后的波形。采样判决前的频谱。 采样判决后的码型。 2、眼图（采样判决之前的眼图）（信噪比大眼图清晰） 3、误码曲线，（横坐标时信噪比，纵坐标时误码率） 4、Arfa变化对误码特性的影响，变好还是变差(变好)，眼图清晰度变化（清晰），传递函数的带宽的变化。（带宽越大）(1.Digital baseband system point of view the digital signal from the time domain when the number of roll-off, you need to draw the waveform displayed before and after the roll-out. The frequency domain, the bandwidth change. Input filter and sample ruling before the wave after wave. Sample pre-judgment spectrum. Sampling pattern after the verdict. 2, the eye diagram (eye before sampling decision) (SNR big eye clear) 3, the error curve (abscissa when the signal to noise ratio, bit error rate when the vertical axis) 4, Arfa impact of change on BER performance, get better or worse (getting better), change of eye-definition (clarity), the transfer function of the bandwidth changes. (The greater the bandwidth))