servo_control

用MATLAB产生线性跳频信号，中心频率和带宽可调(Using MATLAB to generate linear frequency hopping signal with adjustable center frequency and bandwidth)

说明：  连续小波变换：小波函数与原信号对应点相乘，再相加，得到对应点的小波变换系数，平移小波基函数，再计算小波函数与原信号对应点相乘，再相加，这样就得到一系列的小波系数。对于离散小波变换（由于很多小波函数不是正交函数，因此需要一个尺度函数）所以，原信号函数可以分解成尺度函数和小波函数的线性组合，在这个函数中，尺度函数产生低频部分，小波函数产生高频部分。(Continuous wavelet transform: a series of wavelet coefficients are obtained by multiplying and adding the corresponding points of the original signal, translating the wavelet basis function, and calculating and adding the corresponding points of the original signal. For discrete wavelet transform (many wavelet functions are not orthogonal functions, so a scale function is required), the original signal function can be decomposed into a linear combination of scale function and wavelet function, in which the scale function generates the low frequency part and the wavelet function generates the high frequency part.)

该程序提供V-BLAST MIMO系统检测算法相关程序，可采用不同的调制方式，检测算法包括ZF、MMWE、ML及串行干扰抵消检测算法程序。初学者使用很好的程序。(The program provides V-BLAST MIMO detection algorithm system procedures, can be a different modulation, detection algorithms, including ZF, MMWE, ML, and serial interference cancellation detection algorithm. Use a good program for beginners.)

分析仿真了LTE-Advanced系统部署Pico后的小区间干扰协调技术.本文针对在LTE—Advanced系统中部署Pico后恶劣的干扰条件进行了详细的分析，并重点讨论了三种可以有效兼容R8／R9终端的增强型ICIC技术。(Analysis and simulation of LTE-Advanced systems deploy Pico Inter-cell interference coordination techniques for LTE-Advanced systems deploy Pico bad interference conditions, carried out a detailed analysis, and focused on the three can be effectively compatible with R8/R9enhanced terminal ICIC technology.)

基站定位算法,设置基站的位置，信号达到基站的相对时间，即可算出手机的具体位置(The base station positioning algorithm, set the base station location, the relative time the signal to reach the base station can calculate the specific location of mobile phones)

驗證DTFT的Time Shift property(The verification of DTFT Time Shift property)

风力发电机组的仿真结果曲线，包含风速等，如果有需要可以参考，祝好(Wind turbine simulation result curves, including wind speed, etc., if necessary can refer to, best wishes)

说明：  ls 与 mmse 两种信道估计算法比较(Comparison of LS and MMSE channel estimation algorithms)

QPSK定时同步代码，采用Gardner定时同步算法，Farrow插值算法(QPSK timing synchronization code, using Gardner timing synchronization algorithm, Farrow interpolation algorithm)

实现基于STBC的MIMO_OFDM通信系统在不同信噪比情况下接收端的误比特率的仿真。发射端包括基于基带调制、空时编码、导频插入、IFFT、串并合并以及添加循环前缀；接收端包括去除循环前缀、取出导频估计信道、FFT运算以及并串合并，空时解码等。仿真中采用QPSK、空时编码采用4*3的复正交空时编码矩阵。OFDM子载波数为100，每个子载波传输66个符号，每个符号2比特。IFFT长度为512个符号。发射天线为3个接收天线为2个。(The BER simulation of MIMO_OFDM communication system based on STBC under different SNR is realized. The transmitter includes baseband modulation, space-time coding, pilot insertion, IFFT, serial-parallel combination and adding cyclic prefix; the receiver includes removing cyclic prefix, extracting pilot estimation channel, FFT operation, parallel-serial combination, space-time decoding, etc. The complex orthogonal space-time coding matrix is used in QPSK and space time coding in 4*3. The number of OFDM subcarriers is 100, and each subcarrier transfers 66 symbols with 2 bits per symbol. IFFT is 512 symbols in length. The transmitting antenna is 3 receiving antennas, 2.)