danxiangPR

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基于蒙特卡洛方法的主动声纳信号检测性能分析.主动声纳信号检测性能的分析上,目前在计算机仿真中一般假定混响包络的统计特性符合瑞利分布模型。基于此模型,已经有了较完善的理论。然而,在现代高分辨声纳系统中,混响包络的统计特性并不符合瑞利分布模型。此时在接收机工作特性分析时存在大量繁琐的公式推导。因此该文采用蒙特卡洛(M onte Carlo)统计试验方法,实现对瑞利分布混响背景下的主动声纳信号检测性能分析。结合对接收机工作特性曲线的仿真,得出了检测概率的理论值和仿真结果的误差曲线。误差曲线表明,蒙特卡洛方法在主动声纳信号检测的性能评估中是可行的。 更多还原 (Active sonar signal detection performance analysis, computer simulation is generally assumed that the statistical properties of the reverberation envelope distribution model of Rayleigh active sonar signal detection performance analysis based on the Monte Carlo method. Based on this model, has been a better theory. However, in the modern high-resolution sonar system, the statistical characteristics of the reverberation envelope does not comply with the Rayleigh distribution model. At this point in the receiver operating characteristic analysis, there is a lot of tedious formula derivation. In this paper, using the Monte Carlo (M onte Carlo) statistical test methods, active sonar signal detection performance analysis reverberation background Rayleigh distribution. The receiver operating characteristic curve simulation obtained the error curve of the theoretical value and the simulation results of the detection probability. The error curve shows that the Monte Carlo method in the assessm)

内涵PCA降维;SMOTE插值;t-SNE降维等算法的随机森林算法，以及鸢尾花数据集，有利于新手或者工程性实验借鉴~(Connotative PCA dimensionality reduction; SMOTE interpolation; t-SNE dimensionality reduction algorithms such as random forest algorithm, as well as iris data sets, is conducive to novice or engineering experiment reference ~)

alternator matlab file very good

蚁群算法MATLAB代码实现，请注意修改变量，仅供参考。(Ant colony algorithm MATLAB code, please note that the modified variable, for reference only)

图像一维熵的计算方法。读入彩色图像，利用图像信息熵的计算公式，设计算法，实现熵的计算。(one-dimensional image entropy method of calculation. Reading into color images using image information entropy formula, design algorithm, and entropy calculations.)

水面无人船舶建模所需要的海风干扰模型，带详细说明，源创科研代码(The sea breeze by the water unmanned ship modeling interference model, with a detailed description of the source of a research code )

说明：  假近邻法(False Nearest NeighborFNN)计算嵌入维的Matlab程序

BP神经网络 BP神经网络 BP神经网络 BP神经网络 BP神经网络( BP neural network BP neural network BP neural network)

homework 3-2 is difficult