Signals convey information. Systems transform signals. This book introduces the mathe- matical models used to design and understand both. It is intended for students interested in developing a deep understanding of how to digitally create and manipulate signals to measure and control the physical world and to enhance human experience and communi- cation.
标签： Interpretation Structure and Signals Systems of
上传时间： 2020-06-10
上传用户：shancjb
Computer science as an academic discipline began in the 1960’s. Emphasis was on programming languages, compilers, operating systems, and the mathematical theory that supported these areas. Courses in theoretical computer science covered finite automata, regular expressions, context-free languages, and computability. In the 1970’s, the study of algorithms was added as an important component of theory. The emphasis was on making computers useful. Today, a fundamental change is taking place and the focus is more on a wealth of applications. There are many reasons for this change. The merging of computing and communications has played an important role. The enhanced ability to observe, collect, and store data in the natural sciences, in commerce, and in other fields calls for a change in our understanding of data and how to handle it in the modern setting. The emergence of the web and social networks as central aspects of daily life presents both opportunities and challenges for theory.
标签： Foundations Science Data of
上传时间： 2020-06-10
上传用户：shancjb
This book addresses programmer attitudes, but it’s not some kind of psychology textbook. We’ll investigate many topics, including: Source code presentation Defensive coding techniques How to debug programs effectively Good teamworking skills Managing your source code Take a quick glance through the table of contents to see exactly what’s covered. What is the rationale behind my selection of topics? I’ve been mentor- ing trainee programmers for many years, and these are the topics that have come up time and time again. I’ve also worked in the software factory for long enough to have seen the recurring problems—I address these too. If you can conquer all of these programming demons, you’ll progress from an apprentice coder to a real code craftsman.
标签： excellent practice writing Craft Code code the of
上传时间： 2021-11-09
上传用户：danix800
This reference manual targets application developers. It provides complete information onhow to use the STM32F051x6 and STM32F051x8 microcontroller memory and peripherals.The STM32F051x6 and STM32F051x8 will be referred to as STM32F051xx throughout thedocument, unless otherwise specified.
标签： stm32
上传时间： 2021-12-02
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软件开发人员必备工具书，，目录如下Welcome to Software Construction [1]1.1 What Is Software Construction?1.2 Why Is Software Construction Important?1.3 How to Read This Book......7.1 Valid Reasons to Create a Routine7.2 Design at the Routine Level7.3 Good Routine Names7.4 How Long Can a Routine Be?7.5 How to Use Routine Parameters7.6 Special Considerations in the Use of Functions7.7 Macro Routines and Inline RoutinesDefensive Programming [5.6 + new material]8.1 Protecting Your Program From Invalid Inputs8.2 Assertions8.3 Error Handling Techniques8.4 Exceptions8.5 Barricade Your Program to Contain the Damage Caused by Errors8.6 Debugging Aids8.7 Determining How Much Defensive Programming to Leave in Production Code8.8 Being Defensive About Defensive ProgrammingThe Pseudocode Programming Process [4+new material]9.1 Summary of Steps in Building Classes and Routines9.2 Pseudocode for Pros9.3 Constructing Routines Using the PPP9.4 Alternatives to the PPP......
上传时间： 2021-12-08
上传用户：20125101110
高清电子书-C++ Primer Plus, 第6版英文版 1438页Learning C++ is an adventure of discovery, particularly because the language accommodates several programming paradigms, including object-oriented programming, generic programming, and the traditional procedural programming.The fifth edition of this book described the language as set forth in the ISO C++ standards, informally known as C++99 and C++03, or, sometimes as C++99/03. (The 2003 version was largely a technical correction to the 1999 standard and didn’t add any new features.) Since then, C++ continues to evolve.As this book is written, the international C++ Standards Committee has just approved a new version of the standard.This standard had the informal name of C++0x while in development, and now it will be known as C++11. Most contemporary compilers support C++99/03 quite well, and most of the examples in this book comply with that standard. But many features of the new standard already have appeared in some implementations, and this edition of C++ Primer Plus explores these new features. C++ Primer Plus discusses the basic C language and presents C++ features, making this book self-contained. It presents C++ fundamentals and illustrates them with short, to-the-point programs that are easy to copy and experiment with.You learn about input/output (I/O), how to make programs perform repetitive tasks and make choices, the many ways to handle data, and how to use functions.You learn about the many features C++ has added to C, including the followi
标签： C++
上传时间： 2022-02-19
上传用户：trh505
This Getting Started Guide is written for Maxwell beginners and experienced users who would like to quickly re familiarize themselves with the capabilities of MaxwelL.This guide leads you step-by-step through solving and analyzing the results of a rotational actuator magnetostatic problem with motion By following the steps in this guide, you will learn how to perform the following tasks Modify a models design parameters y Assign variables to a model's design parameters.Specify solution settings for a design Validate a designs setupRun a maxwell simulation v Plot the magnetic flux density vecto v Include motion in the simulation本《入门指南》是为希望快速重新熟悉MaxwelL功能的Maxwell初学者和有经验的用户编写的。本指南将引导您逐步解决和分析旋转致动器静运动问题的结果。按照本指南中的步骤，您将学习如何执行以下任务。修改模型设计参数y将变量分配给模型的设计参数。指定设计的解决方案设置验证设计设置运行maxwell模拟v绘制磁通密度vecto v在模拟中包含运动
上传时间： 2022-03-10
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电学中的测量技术涉及范围非常广,电流测量在电学计量中占有非常重要的位置。如何精确地进行电流测量是精密测量的一大难题。传统的电流检测电路多采用运算放大芯片与片外电流检测电路相结合的方式,电路集成度很低,需要较多的接口和资源才能完成对电路的检测。本文把所有电路部分都集成在一块芯片上,包括检测电阻,运算放大器电路及模拟转数字转换电路,从而在电路内部可以进行电流检测,使电路更好的集成化。前置电路使用二级共源共栅结构的运算放大器,减小沟道长度调制效应造成的电流误差。10位SAR ADC中采用电容驱动能力强的传输门保证了模数转化器的有效精度。比较器模块采用再生锁存器与迟滞比较器作为基础单元组合解决精密测量的问题。本设计可以作为嵌入芯片内的一小部分而检测芯片中的微小电流1mA~100mA,工作电压在1.8v左右,电流检测精度预期达到10uA的需求。The measurement technology in electricity involves a wide range,and current measurement plays a very important position in electrical measurement.How to accurately measure current is a big problem in precision measurement. The traditional current detecting circuit adopts the combination of the operational amplifier chip and theoff-chip current detecting circuit, The circuit integration is very low, and more interfaces and resources are needed tocomplete the circuit detection.This topic integrates all the circuit parts into one chip, including detection resistance, operational amplifier circuit andanalog to digital conversion circuit. Highly integrated circuit makes the external resources on the chip more intensive,so that current detection can be carried out inside the circuit, so that the circuit can be better integrated. Thefront-end circuit of this project uses two-stage cascade operational amplifier and cascade tube to reduce the currenterror caused by channel length modulation effect. In 10-bit SAR ADC, the transmission gate with strong capacitivedriving ability ensures the effective accuracy of the analog-to-digital converter. Comparator module uses regenerativelatch and hysteresis comparator as basic unit to solve the difficult problem of precision measurement. This topic can beused as a small part of the embedded chip to detect the micro-current in the chip 1 mA~100 mA, the working voltageis about 1.8v, and the current detection accuracy is expected to reach the requirement of 10 uA.
上传时间： 2022-04-03
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随着科技的发展，人们在日常生活中使用的电器越来越多，电子设备的电磁兼容性（EMC）也越来越重要。所以，人们对电子设备的电磁兼容性的要求也越来越严格，越来越规范。而在市场竞争中，如何降低成本、减少设备体积，是各电子设备制造厂家重点研究的课题。通过对开关电源的EMI滤波电路的类别和相应的技术特点进行分析，设计出一种既能提高性能，又能降低成本的滤波电路。With the development of technology, appliances people use in their daily lives, more and more electronic devices electromagnetic compatibility （ EMC ） has become increasingly important. So, people electromagnetic compatibility requirements of electronic devices have become increasingly stringent, more and more standardized. The competition in the market, how to reduce costs, reduce equipment size, is the subject of the electronic equipment manufacturer focused on research. Through the technical characteristics of the respective category and the EMI filter circuit switching power supply is analyzed both designed to improve a performance of the filter circuit can reduce the cost.
上传时间： 2022-04-23
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BLE heart rate profile document.this is can help you how to write a profile.
标签： ble
上传时间： 2022-04-30
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