【本日限時刷卡優惠】PRINCIPLES OF COMMUNICATION SYSTEMS SIMULATION WITH WIRELESS APPLICATIONS超怕缺貨的
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【本日限時刷卡優惠】PRINCIPLES OF COMMUNICATION SYSTEMS SIMULATION WITH WIRELESS APPLICATIONS超怕缺貨的推薦好書必買
商品訊息功能:
商品訊息描述: 人氣商品排行榜超值推 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 Num2019熱門產品ber Generators. Mapping Uniform RVs to an Arbitrary pdf. Generating Uncorrelated Gaussian Random Numbers. Generating Correlated Gaussian Random Numbers. Establishing a 網購達人撿便宜購物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 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.
大力推薦熱賣產品>好康年終募集便宜
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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【本日限時刷卡優惠】PRINCIPLES OF COMMUNICATION SYSTEMS SIMULATION WITH WIRELESS APPLICATIONS超怕缺貨的 討論,推薦,開箱,CP值,熱賣,團購,便宜,優惠,介紹,排行,精選,特價,周年慶,體驗,限時
下面附上一則新聞讓大家了解時事
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 )
左耳突然聽不見 竟是耳中風作怪！
(健康醫療網／記者曾正豪報導)
一名43歲男性，從事業務工作，近來因換了新主管，導致壓力變大，且加班時常感到身體疲憊，某次早晨起床後，左耳突然聽不到聲音，緊急就醫檢查，經純音聽力診斷，醫師發現患者左側30分貝的感音性聽力障礙，確診為突發性耳聾，透過耳內注射並口服類固醇藥物後，患者聽力已逐漸恢復正常。
耳中風患者會聽力喪失 又以中年族群居多
突發性耳聾就稱為耳中風，患者會突然聽不到聲音，大多為單耳的聽力喪失，但因和腦中風沒有直接關係，患者不用過於擔憂；童綜合醫院醫師張紘䪸指出，臨床上，突發性耳聾有四分之一的患者，會出現暈眩前兆，症狀多為耳鳴和聽力喪失，又以中年族群為主，在醫學上，屬於三天內，連續三個聲音頻率，大於30分貝感音神經性聽力減退的症狀。
罹耳中風原因不明 恐和免疫系統有關
張紘䪸醫師進一步說明，在台灣，每年約有4到5000個案例，並非很罕見的疾病，但罹病原因較不確切，通常和免疫系統、病毒感染、血管疾病、內耳淋巴囊水腫等因素有關，但也有約百分之一的患者有腦部腫瘤的可能，治療上，會給予口服或注射類固醇，部分文獻則建議可合併使用高壓氧療法或血漿擴張劑，以增加療效。
若有疑似症狀出現 應盡早就醫治療
另外，若病症發生後兩週內，採以類固醇治療，療效更佳，臨床上，約七成患者可完全恢復，少部分患者則需輔助像是針灸或心靈等治療方法；張紘䪸醫師呼籲，若有相關症狀出現時，應盡早就醫治療，才能盡早對症下藥，避免使症狀加劇，影響日常生活。
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