【推薦精美禮品】PRINCIPLES OF COMMUNICATION SYSTEMS SIMULATION WITH WIRELESS APPLICATIONS開箱
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【推薦精美禮品】PRINCIPLES OF COMMUNICATION SYSTEMS SIMULATION WITH WIRELESS APPLICATIONS開箱推薦好書必買
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商品訊息描述: 暢銷商品必買清單熱銷排行榜 This book presents a comprehensive overview of computer-based simulation models and methodologies for communication systems. Because such models are a useful and necessary tool in the design, analysis, and performance of communication systems as well as a means of evaluating design changes in these systems, Computer Aided Design and Analysis of Communication Systems with Wireless Applications uses MATLAB as a basis for developing effective computer-based simulations. Such simulations are intended to capture the essential features of the system to assure accurate results while minimizing the complexity of the model, ensuring execution of the simulation code in a reasonable amount of time. Among the fundamental topics covered are probability, random, process, and estimation theory and their roles in the design of computer-based simulations.Preface.I. INTRODUCTION. 1. The Role of Simulation. Examples of Complexity. Multidisciplinary Aspects of Simulation. Models. Deterministic and Stochastic Simulations. The Role of Simulation. Software Packages for Simulation. A Word of Warning. The Use of MATLAB. Outline of the Book. Further Reading. 2. Simulation Methodology. Introduction. Aspects of Methodology. Performance Estimation. Summary. Further Reading. Problems. II. FUNDAMENTAL CONCEPTS AND TECHNIQUES. 3. Sampling and Quantizing. Sampling. Quantizing. Reconstruction and Interpolation. The Simulation Sampling Frequency. Summary. Further Reading. References. Problems. 4. Lowpass Simulation Models for Bandpass Signals and Systems. The Lowpass Complex Envelope for Bandpass Signals. Linear Bandpass Systems. Multicarrier Signals. Nonlinear and Time-Varying Systems. Summary. Further Reading. References. Problems. Appendix A: MATLAB Program QAMDEMO. Appendix B: Proof of Input-Output Relationship. 5. Filter Models and Simulation Techniques. Introduction. IIR and FIR Filters. IIR and FIR Filter Implementations. IIR Filters: Synthesis Techniques and Filter Characteristics. FIR Filters: Synthesis Techniques and Filter Characteristics. Summary. Further Reading. References. Problems. Appendix A: Raised Cosine Pulse Example. Appendix B: Square Root Raised Cosine Pulse Example. Appendix C: MATLAB Code and Data for Example 5.11. 6. Case Study: Phase-Locked Loops and Differential Equation Methods. Basic Phase-Locked Loop Concepts. First-Order and Second-Order Loops. Case Study: Simulating the PLL. Solving Differential Equations Using Simulation. Summary. Further Reading. References. Problems. Appendix A: PLL Simulation Program. Appendix B: Preprocessor for PLL Example Simulation. Appendix C: PLL Postprocessor. Appendix D: MATLAB Code for Example 6.3. 7. Generating and Processing Random Signals. Stationary and Ergodic Processes. Uniform Random Number Generators. Mapping Uniform RVs to an Arbitrary pdf. Generating Uncorrelated Gaussian Random Numbers. Generating Correlated Gaussian Random Numbers. Establishing a pdf and a PSD. PN Sequence Generators. Signal Processing. Summary. Further Reading. References. Problems. Appendix A: MATLAB Code for Example 7.11. Main Program: c7 Jakes.m. 8. Postprocessing. Basic Graphical Techniques. Estimation. Coding. Summary. Further Reading. References. Problems. Appendix A: MATLAB Code for Example 8.1. 9. Introduction to Monte Carlo Methods. Fundamental Concepts. Application to Communications Systems—The AWGN Channel. Monte Carlo Integration. Summary. Further Reading. References. Problems. 10. Monte Carlo Simulation of Communication Systems. Two Monte Carlo Examples. Semianalytic Techniques. Summary. References. Problems. Appendix A: Simulation Code for Example 10.1. Appendix B: Simulation Code for Example 10.2. Appendix C: Simulation Code for Example 10.3. Appendix D: Simulation Code for Example 10.4. 11. Methodology for Simulating a Wireless System. System-Level Simplifications and Sampling Rate Considerations. Overall Methodology. Summary. Further Reading. References. Problems. III. ADVANCED MODELS AND SIMULATION TECHNIQUES. 12. Modeling and Simulation of Nonlinearities. Introduction. Modeling and Simulation of Memoryless Nonlinearities. Modeling and Simulation of Nonlinearities with Memory. Techniques for Solving Nonlinear Differential Equations. PLL Example. Summary. Further Reading. References. Problems. Appendix A: Saleh's Model. Appendix B: MATLAB Code for Example 12.2. 13. Modeling and Simulation of Time-Varying Systems. Introduction. Models for LTV Systems. Random Process Models. Simulation Models for LTV Systems. MATLAB Examples. Summary. Further Reading. References. Problems. Appendix A: Code for MATLAB Example 1. Appendix B: Code for MATLAB Example 2. 14. Modeling and Simulation of Waveform Channels. Introduction. Wired and Guided Wave Channels. Radio Channels. Multipath Fading Channels. Modeling Multipath Fading Channels. Random Process Models. Simulation Methodology. Summary. Further Reading. References. Problems. Appendix A: MATLAB Code for Example 14.1. Appendix B: MATLAB Code for Example 14.2. 15. Discrete Channel Models. Introduction. Discrete Memoryless Channel Models. Markov Models for Discrete Channels with Memory. Example HMMs—Gilbert and Fritchman Models. Estimation of Markov Model Parameters. Two Examples. Summary. Further Reading. References. Problems. Appendix A: Error Vector Generation. Appendix B: The Baum-Welch Algorithm. Appendix C: The Semi-Hidden Markov Model. Appendix D: Run-Length Code Generation. Appendix E: Determination of Error-Free Distribution. 16. Efficient Simulation Techniques. Tail Extrapolation. pdf Estimators. Importance Sampling. Summary. Further Reading. References. Problems. Appendix A: MATLAB Code for Example 16.3. 17. Case Study: Simulation of a Cellular Radio System. Introduction. Cellular Radio System. Simulation Methodology. Summary. Further Reading. References. Problems. Appendix A: Program for Generating the Erlang B Chart. Appendix B: Initialization Code for Simulation. Appendix C: Modeling Co-Channel Interference. Appendix D: MATLAB撿便宜購物 Code for Wilkinson's Method. 18. Two Example Simulations. A Code-Division Multiple Access System. FDM System with a Nonlinear Satellite Transponder. References. Appendix A: MATLAB Code for CDMA Example. Appendix B: Preprocessors for CDMA Application. Appendix C: MATLAB Function c18 errvector.m. Appendix D: MATLAB Code for Satellite FDM Example. Index. About The Authors.
CP值超高不能不逛2019熱門產品a最新出版2019熱門商品>人氣產品
商品訊息簡述:
作者： TRANTER, SHANMUGAN, RAPPAPORT, KOSBAR
新功能介紹- 出版社：全華圖書
新功能介紹 - 出版日期：2004/01/15
- 語言：英文
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6成自殺憾事 輕生前7天曾就醫 | 生活新聞 | 生活 | 聯合新聞網
據研究顯示，自殺死亡者在自殺身亡前7天內不限精神科別就醫的比例皆在60省錢方法網路熱銷商品%左右。圖／聯合報系資料照片 分享 facebook 研究發現，自殺身亡者高達6成以上，在決定自殺前7天曾赴醫院就診，就診科別不限精神科；其中65歲以上老人，決定自殺前1個月內，赴醫院診所就診的比率將近9成。專家呼籲，若能在醫療第一線能設下防線，也許能阻擋更多憾事發生。國內自殺死亡率逐年攀升，根據衛福部公布106年的國人死因，自殺身亡名列第11位，自殺死亡人數與105年相比增加16.4％，男性多於女性。. } }); } 研究發現，自殺身亡者多達6成以上，於輕生前7天曾赴醫院就診。台灣自殺防治學會理事吳佳儀說，面對久病厭世、長流行購買期照顧他人禮物網路購物的照顧者，長期心理不適，而導致生理出現類似生病的反應，比率相當高。吳佳儀說，曾66歲男子，因妻子罹癌，他因照顧壓力而失眠，求助醫師，定期服用藥物改善症狀。但幾年後，妻子過世，他受不了壓力，加上並未規律服藥，讓他再度失眠。心理影響生理不適，讓他動了輕生念頭；某天兒媳返家，撞見李姓男子意圖輕生，即時挽救才沒有發生憾事。吳佳儀說，許多意圖輕生高風險族群，若第一線醫療人員能主動建立關係並評估狀況，及時轉介精神衛生門診，有助於降低憾事發生。衛福部心口司司長諶立中指出，我國20年前開始提倡家醫科醫師及開業醫師納入自殺防治範疇，民國9最近流行商品產品0年左右自殺率高峰，醫界普遍警覺性高。但隨著國內自殺率下降，相關觀念開始被忽視。吳佳儀呼籲，自殺防治不僅是精神科醫師的責任，所有第一線醫療人員都是守門人，掌握「1問2應3轉介」主動關懷傾聽、適當回應支持及轉介精神衛生專業。 自殺，不能解決難題；求助，才是最好的路。求救請打1995 ( 要救救我 )
英雄聯盟世界賽》閃電狼被PVB拉下馬 晉級八強添變數
[新頭殼newtalk] 《英雄聯盟》S8世界大賽小組賽今日來到第六日賽程，前一場才驚險擊敗G2的閃電狼此役對上無緣晉級八強的越南PVB，原本閃電狼可以憑著這場勝利自力晉級八強，但在PVB從前期到後期的凌厲攻勢下，最終在這場40分鐘大戰落敗，PVB也以兩勝四敗結束世界賽旅程，而三勝三敗的閃電狼得等到最後一場AFs與G2之間的敗隊，進行第二種子決定戰加賽，落敗將打包回家，贏家則能挺進到八強。
FW（藍方）：賽恩、歐拉夫、阿卡莉、希維爾、慎／禁用：傑西、夜曲、銳空、瑟雷西、雷歐娜
先發名單：Hanabi、Moojin、Maple、Betty、SwordArT
PVB（紅方）：厄薩斯、卡蜜兒、加里歐、凱莎、古拉格斯／禁用：亞歷斯塔、貪啃奇、烏爾加特法洛士、剎雅
先發名單：Zeros、XuHao、Naul、BigKoro、Palette
開局閃電狼再度中上兩路換線，但Maple阿卡莉卻在線上被PVE上野夾殺，由XuHao卡蜜兒取得首殺，隨後Maple也塔殺Zeros厄薩斯扳回一城，但Zeros也策劃多波成功GANK，幫助隊友在線上取得優勢，但閃電狼又在7分鐘策畫一波四殺一成功塔殺，前期可說互有來往。
PVB前期打得十分激進，不斷單抓閃電狼人頭，更拿下上路首塔經濟與預示者，成功搗毀閃電狼中路外塔，但閃電狼回應迅速，火速在15分鐘先後打出四殺，雙方經濟相差不遠，但PVB 依舊在推塔數維持領先。
23分鐘閃電狼在上路先是守下對方的強開並回打一波1換3，不過Betty希維爾在上路推塔被對手包夾，儘管攻勢止步但經濟也正式超車，26分鐘Maple單殺邊路分推的Zeros，為團隊爭取到在對方紅區建立視野的機會，29分鐘再單抓Palette古拉格斯後推倒中二塔。
30分鐘PVB搶開巴龍引來閃電狼迎戰，成功打出一波1換3攻勢後吃下巴龍，帶領強化小兵推掉閃電狼中下二塔，但閃電狼在35分鐘收下卡蜜兒後反倒是突破越南中路兵營，但自家上路兵營也被厄薩斯突破，更在37分鐘的團戰被打出4換2，戰況依舊緊繃。
39分鐘PVB再拿下第二條巴龍並擊殺賽恩後，成功摧毀閃電狼兩路兵營，再回頭拿下遠古巨龍，此時閃電狼決定開戰卻被打出兩殺，閃電狼面臨主堡防禦戰，最終還是落敗下來，接下來得等待G2與AFs之間的敗隊，進行第二名決定戰。
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