The basic topic of this book is solving problems from system and control theory using convex optimization. We show that a wide variety of problems arising in system and control theory can be reduced to a handful of standard convex and quasiconvex optimization problems that involve matrix inequalities. For a few special cases there are “analytic solutions” to these problems, but our main point is that they can be solved numerically in all cases. These standard problems can be solved in polynomial- time (by, e.g., the ellipsoid algorithm of Shor, Nemirovskii, and Yudin), and so are tractable, at least in a theoretical sense. Recently developed interior-point methods for these standard problems have been found to be extremely efficient in practice. Therefore, we consider the original problems from system and control theory as solved.
标签： Linear_Matrix_Inequalities_in_Sys tem
上传时间： 2020-06-10
上传用户：shancjb
Artificial Intelligence (AI) has undoubtedly been one of the most important buz- zwords over the past years. The goal in AI is to design algorithms that transform com- puters into “intelligent” agents. By intelligence here we do not necessarily mean an extraordinary level of smartness shown by superhuman; it rather often involves very basic problems that humans solve very frequently in their day-to-day life. This can be as simple as recognizing faces in an image, driving a car, playing a board game, or reading (and understanding) an article in a newspaper. The intelligent behaviour ex- hibited by humans when “reading” is one of the main goals for a subfield of AI called Natural Language Processing (NLP). Natural language 1 is one of the most complex tools used by humans for a wide range of reasons, for instance to communicate with others, to express thoughts, feelings and ideas, to ask questions, or to give instruc- tions. Therefore, it is crucial for computers to possess the ability to use the same tool in order to effectively interact with humans.
标签： Embeddings Processing Language Natural in
上传时间： 2020-06-10
上传用户：shancjb
General paradigm in solving a computer vision problem is to represent a raw image using a more informative vector called feature vector and train a classifier on top of feature vectors collected from training set. From classification perspective, there are several off-the-shelf methods such as gradient boosting, random forest and support vector machines that are able to accurately model nonlinear decision boundaries. Hence, solving a computer vision problem mainly depends on the feature extraction algorithm
标签： Convolutional Networks Neural Guide to
上传时间： 2020-06-10
上传用户：shancjb
实时时钟计数秒，分钟，小时，月份，月份，星期几和年份，并具有Le年补偿，有效期至2100年；31 x 8电池支持通用RAM；串行I / O，用于最少的引脚数；2.0V至5.5V完全工作；在2.0V时使用小于300nA的电流；单字节或多字节（突发模式）数据传输，用于读取或写入时钟或RAM数据；8引脚DIP或可选8引脚SO用于表面贴装；TTL兼容（VCC = 5V）；可选的工业温度范围：-40°C至+ 85°C[15]。DS1302引脚示意图如图3.7.1所示。
上传时间： 2021-04-20
上传用户：天北油京
[摘要]全球电源管理技术领袖国际整流器公司（International Rectifier，简称IR）今天发布了IR1150 系列产品，专用于AC-DC 功率因数矫正电路，商标为PFC(tm)。由于采用紧凑的SO-8 封装，有助于将PFC 控制板面积缩减一半，在75W-4k W 功率范围内，为计算机、消费电子产品和家电提供了简便、灵活、高密度的解决方案。
标签： ir集成电路
上传时间： 2021-11-23
上传用户：
protel99se原理图库+封装库电路设计protel库合集（包括2000多个封装文件），包括已经分类的原理图和PCB封装库文件，LIB后缀+DDB后缀工程封装库文件，包括电阻电容电感保险丝二极管三极管继电器插口接口器件SOP SOIC QFN TQFP SOJ SOL SO BGA 等各类常用芯片封装，各类开关，变压器，MOS管，晶振等，基本上包括了市面上的常用器件，可以直接用于你的电路设计。
标签： protel99se 封装 电路设计 protel
上传时间： 2021-12-19
上传用户：XuVshu
AC220V转DC5V(3W )-RS485电路-继电器驱动板ALTIUM设计硬件原理图+PCB+AD集成封装库，2层板设计，大小为59x62mm，Altium Designer 设计的工程文件，包括完整的原理图及PCB文件，可以用Altium(AD)软件打开或修改，可作为你产品设计的参考。集成封装器件型号列表：Library Component Count : 20Name Description----------------------------------------------------------------------------------------------------CAP1 GRM21BR61A106KE19L，106,10μF,±10%,10V,X5R,0805,muRata,RoHSCON2 ConnectorCON3 ConnectorCON4 ConnectorDIODE ZENER2 SMBJ6.5CA,DO-214AA,君耀,RoHSDIODE1 1N4148,SOD-323,长电,RoHSFUSE1 MST2.50,T2.5A,250V,长方形,CONQUER,RoHSHEADER 5X2 HOLE - 不上螺丝 MARKER MAX485CSA SP485REN-L,SO-8,EXAR,RoHSNPN-1 9013,SOT-23,长电,RoHSRELAY-SPST HF46F/005-HS1,20.5×7.2×15.3mm,宏发,RoHSRES-PTC NTC,5D-9,DIP,RoHSRES2 10Ω,0603,*,RoHSRES4 471KD10,直插,君耀,RoHSZLGZY GAOYA ZY0IFBxxP-3W ZY0IGB05P-3W V1.00ZY_ESD-MARK
上传时间： 2021-12-21
上传用户：aben
CPCI_E标准规范 CompactPCI® Express SpecificationThe documents in this section may be useful for reference when reading the specification. The revision listed for each document is the latest revision at the time this specification was published. Newer revisions of these documents may exist, so refer to the newest revision. Many of these documents are referenced throughout this specification. Refer to the newest revision of the document unless a specific revision is referenced. • PCI Express Base Specification 3.0. PCI Special Interest Group (PCI-SIG). • PCI Express Card Electromechanical (CEM) Specification 3.0. PCI Special Interest Group (PCI-SIG). • PCI Express to PCI/PCI-X Bridge Specification, Rev. 1.0. PCI Special Interest Group (PCI-SIG). • PCI Express Jitter White Paper. PCI Special Interest Group (PCI-SIG). • PCIe Rj Dj BER White Paper. PCI Special Interest Group (PCI-SIG). • PHY Electrical Test Specification for PCI Express Architecture. PCI Special Interest Group (PCI SIG). • System Management Bus (SMBus) Specification, Version 2.0. Smart Battery System Implementer’
标签： CPCIE
上传时间： 2022-02-23
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电子书-RTL Design Style Guide for Verilog HDL540页A FF having a fixed input value is generated from the description in the upper portion of Example 2-21. In this case, ’0’ is output when the reset signal is asynchronously input, and ’1’ is output when the START signal rises. Therefore, the FF data input is fixed at the power supply, since the typical value ’1’ is output following the rise of the START signal. When FF input values are fixed, the fixed inputs become untestable and the fault detection rate drops. When implementing a scan design and converting to a scan FF, the scan may not be executed properl not be executed properly, so such descriptions , so such descriptions are not are not recommended. recommended.[1] As in the lower part of Example 2-21, be sure to construct a synchronous type of circuit and ensure that the clock signal is input to the clock pin of the FF. Other than the sample shown in Example 2-21, there are situations where for certain control signals, those that had been switched due to the conditions of an external input will no longer need to be switched, leaving only a FF. If logic exists in a lower level and a fixed value is input from an upper level, the input value of the FF may also end up being fixed as the result of optimization with logic synthesis tools. In a situation like this, while perhaps difficult to completely eliminate, the problem should be avoided as much as possible.
标签： RTL verilog hdl
上传时间： 2022-03-21
上传用户：canderile
本系统采用电动机电枢供电回路串接采样电阻的方式来实现对小型直流有刷电动机的转速测量。该系统主要由二阶低通滤波电路,小信号放大电路、单片机测量显示电路、开关稳压电源电路等组成。同时自制电机测速装置,用高频磁环作为载体,用线圈绕制磁环,利用电磁感应原理检测电机运行时的漏磁,将变化的磁场信号转化为磁环上的感应电流。用信号处理单元电路将微弱电信号转化为脉冲信号,送由单片机检测,从而达到准确测量电机的速度的要求。In this system, the sampling resistance of armature power supply circuit is connected in series to measure the speed of small DC brush motor. The system is mainly composed of second-order low-pass filter circuit, small signal amplifier circuit, single-chip measurement and display circuit, switching regulated power supply circuit and so on. At the same time, the self-made motor speed measuring device uses high frequency magnetic ring as the carrier, coil winding magnetic ring, and electromagnetic induction principle to detect the leakage of magnetic field during the operation of the motor, which converts the changed magnetic field signal into the induced current on the magnetic ring. The weak electric signal is transformed into pulse signal by signal processing unit circuit, which is sent to single chip computer for detection, so as to meet the requirement of accurate measurement of motor speed.
标签： 直流电动机
上传时间： 2022-03-26
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