iteraciya3wtuki

信道编码采用卷积码，解码使用Viterbi解码。调制给出QPSK、16QAM 两种调制方式，并在AWGN和瑞利信道两种信道模型下传输。(Channel coding using convolutional codes, decoding using the Viterbi decoder. Given modulation QPSK, 16QAM modulation in two ways, and in the AWGN and Rayleigh channel model of two-channel transmission.)

实现图像的同态滤波，但是在使用之前需要将图片替换成自己的图片，并且要将图片转换成灰度图片(Achieve homomorphic filtering of the image, but need to be replaced before using the pictures into your own picture, and you want to convert the picture into a grayscale picture)

donwload from Matlab source code

Code for denoising images. This code differs from standard wavelet denoising techniques in that it uses non-orthogonal wavelets, and unlike existing techniques, ensures that phase information is preserved in the image. Phase information is of crucial importance to human visual perception. Also, this code does have an effective way of determining threshold levels automatically. (Code for denoising images. This code differs from standard wavelet denoising techniques in that it uses non-orthogonal wavelets, and unlike existing techniques, ensures that phase information is preserved in the image. Phase information is of crucial importance to human visual perception. Also, this code does have an effective way of determining threshold levels automatically.)

标准矩形阵列的波束方向图切面的极坐标图，均匀加权：（a）phai=0度或90度；（b）phai=45度。(Polar plot of uniformly weighted rectangular array)

说明：  推导雷达方程，建模计算美国的预警机雷达对大型战斗机的最大发现距离。雷达建模包括天线方向图、扫描调制（天线方向图的扫描调制）等，同时考虑不同脉冲积累数(Derive the radar equations, model and calculate the maximum discovery distance of the US early warning aircraft radar for large fighters. Radar modeling includes antenna pattern, scanning modulation (scanning modulation of antenna pattern), etc., while considering different pulse accumulation numbers)

说明：  粒子群优化算法(PSO：Particle swarm optimization) 是一种进化计算技术（evolutionary computation）。源于对鸟群捕食的行为研究。粒子群优化算法的基本思想：是通过群体中个体之间的协作和信息共享来寻找最优解．(PSO (Particle Swarm Optimization) is an evolutionary computation. It comes from studying the behavior of flocks of birds. The basic idea of particle swarm optimization algorithm is to find the optimal solution through the cooperation and information sharing among the individuals in the group.)

说明：  基于matlab的扩频tongxin系统仿真及性能分析，非常详细 (Spread Spectrum tongxin system based on matlab simulation and performance analysis, very detailed)

雷达截面积————————平截体后向散射RCS(Truncated body backscatter RCS )

说明：  internal on line partial discharge