duixiao

all type of signal generator

实现扩频里随机信号和伪码序列的产生，以及扩频信号的产生，用本地载波实现bpskt调制，在接收端用差分相干积分完成伪码捕获的相应MATLAB程序(Spread spectrum signal generated in the realization and pseudo random code sequence, and generate a spread spectrum signal modulation to achieve bpskt local carrier, at the receiving end with the completion of the pseudo-differential coherent integration of the corresponding MATLAB code acquisition program)

说明：  引入具有平移不变性和良好的方向分析能力的双树复小波变换对源图像进行多尺度分解;然后对分解得到的各尺度的高频子带采用基于跨尺度的邻域空间频率的融合策略,最高层的低频子带采用基于改进的邻域熵的融合策略进行融合处理;最后对融合后的各个频带进行双树复小波逆变换,重构出融合图像(The dual tree complex wavelet transform with translation invariance and good direction analysis ability is introduced to decompose the source image in multi-scale; then the fusion strategy based on the cross-scale neighborhood space frequency is adopted for the high-frequency subband of each scale obtained by decomposition, and the fusion strategy based on the improved neighborhood entropy is adopted for the low-frequency subband of the highest level; finally, each frequency band after fusion is carried out Double tree complex wavelet inverse transform to reconstruct fusion image)

Cognitive radio code - detection a hole in spectrum

susan算法 matlab程序 图像边缘提取 分割算法(susan algorithm matlab program image edge extraction segmentation algorithm)

归一化的最小均方误差算法，是初学者学习无线信道算法的好资料。(normalized linear mean square algorithm useful for freshmen)

modulation ask amplitude shift keying

说明：  卡尔曼滤波源代码，含有噪声设置，特别适合初学者(Kalman filter source code, with noise, especially for beginners)

In quantum optics, it is often necessary to simulate the equations of motion of a system coupled to a reservoir. Using a Schrö dinger picture approach, this can be done either by integrating the master equation for the density matrix[1] or by using some state-vector based approach such as the quantum Monte Carlo technique

北斗导航定位二代协议解析，包括格式及解析代码。(Compass II protocol analysis, including formatting and parsing code.)