smooth_diff

一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN信道。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。(A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN channel for the wireless channel. At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results.)

说明：  在低仰角的情况下，海面的杂波振幅特性满足对数正态分布。本程序就产生这样的杂波(At low elevation, the sea clutter amplitude characteristics to meet the lognormal distribution. This procedure resulted in such a clutter)

在这里输入需要翻实现parzen 库中找出与当前情况距离最近的样本的方法.把距离定义为相匹配的输入事例的特征加权和译的文字(Enter here the realization of the need to turn parzen library with the current situation to find the nearest sample. Defined as the distance to match the characteristics of the input-weighted case and translated text)

matlab经典算法，包括各种方程的例子(matlab classic algorithms, including various examples of equations)

这是一个kernel lpp流行学习算法（Kernel Locality Preserving Projections），(Kernel Locality Preserving Projections for manifold usingmatlab)

说明：  用Matlab画出玫瑰，原来程序可以这么浪漫(plot a rose with matlab,romantic program)

The function returns constellation points and bit mappings specified in the DVB-S2 Standard. (qpsk, 32apsk, 16apsk)

SEP协议的源代码，真实有效可靠，可以直接用于MATLAB软件仿真模拟。(The SEP protocol source code, real effective and reliable, and can be used directly in MATLAB software simulation.)

Tschebyscheff滤波器设计，包括零极点分布，幅值相位的关系。(Tschebyscheff filter design, including the zero-pole distribution, the amplitude-phase relationship.)

连续信号经理想采样前后的频谱变化关系的程序分析(Spectrum analysis program managers want to change the relationship between the continuous signal is sampled before and after)