qpsk-error

说明：  创建一个复数类，定义属性：实部、虚部。定义方法：复数加法、复数减法、复数乘法、求实部，求虚部，将复数输出，判断两个复数相等。通过一个类举例验证这些方法(Create a complex number class, custom attributes: the real part, imaginary part. Definition method: complex addition, complex subtraction, multiplication, complex, realistic Department, seeking the imaginary part, the complex output, determine the two complex numbers are equal. Verified through a class example of these methods)

matlab implementation of CORDIC sin part

字典树的基本功能是用来查询某个单词（前缀）在所有单词中出现次数的一种数据结构，它的插入和查询复杂度都为O(len),Len为单词（前缀）长度，但是它的空间复杂度却非常高，如果字符集是26个字母，那每个节点的度就有26个，典型的以空间换时间结构。(The basic function of the dictionary tree data structure is used to query a number of times a word (prefix) appears in all the words, which insertion and query complexity are O (len), Len is a word (prefix) length, but its space complexity is very high, if the character set is 26 letters, and that the degree of each node will have 26, the typical structure of space for time.)

说明：  16PSK系统仿真，m文件程序分析了系统的误码率，作出了仿真误码率曲线，与理论误码率曲线进行比较感觉不错。(16PSK system simulation, m file program analysis of the BER, bit error rate curve to the simulation, and compare theoretical BER curves feel good.)

说明：  孤岛检测在光伏发电并网系统中的应用，一个比较好的参考论文资料(Island in the application of photovoltaic power grid system, a better reference material )

在自适应控制中，用Matlab算法实现广义最小方差自校正控制（直接算法）(In adaptive control, using Matlab algorithm generalized minimum variance self-tuning control (direct algorithm))

全数字调制解调器MATLAB仿真源代码，超级实用，下载即可使用。(MATLAB simulation of an all-digital modem source code, super-utility, download to use.)

LDPC simulation for a 2*2 MIMO system

在matlab环境下对grid文件进行可视化修改，方便灵活。(In the matlab environment to visualize modified grid files, convenient and flexible.)

利用tol和bol进行多基地的定位，最后给出GDOP图(TOL and BOL are used to locate for multi base, and finally the GDOP diagram is given)