Search - Information Gain

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[Software Engineering] OptimumPowerAllocationandControlforOFDMinMultipleA DL : 0: Power Allocationin a Transmit Diversity System with Mean Channel Gain Information
Date : 2008-10-13 Size : 406.08kb User : zy
[Software Engineering] OptimumPowerAllocationandControlforOFDMinMultipleA DL : 0: Power Allocationin a Transmit Diversity System with Mean Channel Gain Information
Date : 2025-12-31 Size : 406kb User : zy
[Software Engineering] target-detection-algorithm- DL : 0: 为克服传统目标识别方法在处理空间特征分布极为复杂的数据时的缺点，提出1 种基于决策树的多特征检测算法，并将其应用到基于视频的海上搜救目标检测中. 该算法首先提取图像中的颜色、亮度等信息，通过计算各特征的信息增益建立决策树，将搜救目标检测问题分解成3 层决策树分类问题. 实验表明，该算法能够提高多特征目标检测的效率，在救生艇、筏等海上搜救目标检测的应用中取得较好的结果.-Characteristics to overcome the traditional target recognition methods in dealing with space distribution of the shortcomings of the highly complex data, proposed a decision tree-based multi-feature detection algorithm, and apply it to video-based maritime search and rescue target detection. The algorithm first extracts the image in the color, brightness, and other information, decision trees, established by the information gain to calculate the characteristics of the rescue target detection problem is decomposed into three layers of the decision tree classification. experiments show that the algorithm can improve the efficiency of the multi-feature object detection in the lifeboat, to obtain better results in the raft and maritime search and rescue of target detection applications.
Date : 2025-12-31 Size : 165kb User : majun
[Software Engineering] rev2 DL : 0: 为达到干涉合成孔径声纳系统对信号源的特殊要求,提出了一种基于SOPC技术的FPGA实现方法,该信号源一方面提供给发射机模拟信号,还给回波信号采集系统提供时钟和同步信号以保证信号系统时间一致性,同时还给接收机的时变增益信号实现对回波信号衰减的补偿另一方面还实时采集并传输声纳系统在水下的运动姿态、深度、压力等信息经过湖试和海试,该信号源系统完成了模拟信号和数字信号各项指标的测试,满足设计要求。-To reach the special requirements interferometric synthetic aperture sonar system signal source based on the the SOPC technology of FPGA implementations, the signal source is provided to the transmitter and analog signal back to the echo signal acquisition system clock and synchronization signal in order to ensure the consistency of the signal system time, but still give the time-varying gain signal receiver of the echo signal attenuation compensation the other hand, real-time acquisition and transmission of the sonar system in underwater sports attitude, depth, pressure, etc. Information After the lake trial and sea trial, the source system to complete the testing of analog and digital signals indicators meet the design requirements.
Date : 2025-12-31 Size : 478kb User : cooldog
[Software Engineering] AGC-design- DL : 0: 自动增益放大器设计文档，电子竞赛必备资料-Automatic gain amplifier design documents, electronic competition essential information. . . . .
Date : 2025-12-31 Size : 142kb User : 曹天
[Software Engineering] IG DL : 0: 文本分类中特征提取的代码。采用信息增益法，对文本的空间向量模型能达到有效降维。文件的输入形式必须是词号-词频形式。- Text Categorization feature extraction code. Using information gain method, the vector space model of the text to achieve effective dimensionality reduction. Enter the file must be in the form of word number- word frequency form.
Date : 2025-12-31 Size : 1kb User : 盖博涛