IC笔试题大全 有数字和模拟两种类型 部分题目配有详细答案

关于GPU在数字仿真领域有限元计算软件中的加速应用。相关资料的整理和部分见解。

基于Matlab的三维数字地形模拟及空间分析.pdf

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VC编写的数字时钟和指针时钟,有VC源码

PKI实验，实现数字证书的颁发和基于数字证书的双机认证，和数字信封的实现

超全电路元件，包含逻辑门、集成电路元件、波形图、逻辑门、版图等元件 各个level电路图的常用元件均有

为了实现数字定位数据在模拟音频信道中传输，提出一种可行的设计方案，并实现软硬件设计。硬件部分包含定位数据接收器、信号处理模块和无线通信模块，其中信号处理模块由单片机STM8L151G4、运放芯片OPA2277和稳压芯片SN74LS132N组成。软件部分包含定位数据转发设计和信号变换设计。数字信号在传输过程中会参入噪声，导致传输出现误码。本设计从软硬件两方面入手解决此问题，以保证信号传输的准确性。经过实验证明，该设计可显著地降低误码率，提高数字信号在模拟信道中传输的通信质量。

An ideal first text on communication systems in electrical engineering, Modern Digital and Analog Communication Systems is now in its fourth edition. Retaining the superb pedagogical style of the first three editions, the authors first introduce the fundamentals of signals and systems and core communication topics; they then present the tools essential to the design and analysis of digital communications. Featuring a seamless blend of mathematics and heuristics, carefully crafted examples to clarify mathematical abstractions, and new and updated MATLAB exercises, this text provides a thorough coverage of modern communication system theory and application that is easily accessible to students. Modern Digital and Analog Communication Systems is suitable for students with or without prior knowledge of probability theory. Only after laying a solid foundation in how communication systems work do the authors delve into analyses of communication systems that require probability theory and random processes. Revised, expanded, and updated throughout, the fourth edition reflects the many technological advances in the field, such as OFDM and CDMA, pervasive communication applications such as cellular systems, wireless LAN systems, and DSL modem technology services. New to this Edition * New discussion of technological advances and applications * New chapters (12 and 13) on spread spectrum communications and frequency selective channels and OFDM systems * New and updated MATLAB examples * New material on such topics as code division multiple-access (CDMA), orthogonal frequency division multiplexing (OFDM), equalization, soft decoding, turbo codes, and low-density parity check (LDPC) codes Features * Flexible organization (outlined in the preface) that accommodates a variety of course structures, including one-semester, two-semester, one-quarter, and two-quarter * Accessible to students with no background in probability theory * Abundant real-world examples that are applica

用c#实现研华DAQ的绝大部分功能，包括数字量输入输出，模拟量输入输出