switch_time

entropy and image encryption

相位噪声的建模分析，单通道建模和仿真，主要参考文献为《effects of LO phase and amplitude imbalances and phase noise on M-QAM transceiver performance》(Phase noise modeling analysis, single channel, the main references is 《effects of LO phase and amplitude imbalances and phase noise on M-QAM transceiver performance》)

自适应（LMS）算法在噪声抑制中的应用。在仿真中，原始信号选为sin((0.2*pi)*t), 噪声信号采用标准白噪声，延迟D=1，收敛因子分别是u=0.001和u=0.3(Adaptive (LMS) algorithm in noise suppression application. In the simulation, the original signal is selected sin ((0.2* pi)* t), noise signal using the standard white noise, the delay D = 1, respectively, convergence factor u = 0.001 and u = 0.3)

本程序的功能是：实现信号从时域到频域的快速傅里叶变换。(Realize the signal conversion from time domain to frequency domain.)

matlab程序，经过多次调试可以运行，包含多个文件，可以准确得到结果。(matlab program, after several debugging can run, contain multiple files, you can get accurate results.)

seperating object ,and it charecter

pharse verb get .........................................

说明：  微分方程数值解，相图，轨线图，等高线图，等(Differential equations, phase diagram, rail lines, contour maps, etc.)

说明：  非正弦信号的波束形成程序，和利用相位的常规波束形成不同，非正弦信号的波束形成首先匹配滤波，提取包络，然后延时相加，(Non-sinusoidal signal beamforming process, and the use of conventional beam-forming phase is different from non-sinusoidal signals in the first match beamforming filtering, envelope extraction, and then add delay,)

说明：  进行基于最大最小方法和K均值结合的分类方法 并画出具体的分类情况，对二维数组具有鲁棒性。(Based on max-min method and combination of K-means classification method and draw a specific classification of two-dimensional array with robustness.)