overview of hypervisor for embeded systems
2021-04-21 14:00:35 1.34MB embeded hypervisor
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MISRA C一开始主要是针对汽车产业,不过其他产业也逐渐开始使用MISRA C:包括航天、电信、国防、医疗设备、铁路等领域中都已有厂商使用MISRA C。
2021-04-19 13:23:22 1.30MB c语言 MISARC2012
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医学诊断与深度学习,糖尿病、帕金森、心脏病等通过深度学习网络进行诊断,LSTM、Capsule Network 在面部表情诊断心理疾病、糖尿病视网膜病变的实际应用
2021-04-12 18:03:38 6.74MB 医学 深度学习 决策支持 诊断
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Kai Chang,RF and Microwave Wireless Systems.pdf
2021-04-06 20:19:48 6.19MB RF Microwave Wireless
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室内可见光通信系统LED灯源功率优化及角度参数分析,丁颖睿,李立华,室内可见光通信系统的性能受到LED灯源发送功率,LED灯源半功率角(HPSA)以及接收器视角(FOV)的影响。本文提出了一种新颖的线性规��
2021-04-03 10:20:40 501KB visible light communication
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Contents Preface xiii Acknowledgments xv Chapter 1 Communication Electronic Warfare Systems 1 1.1 Introduction 1 1.2 Information Warfare 1 1.3 Electronic Warfare 3 1.3.1 Electronic Support 3 1.3.2 Electronic Attack 4 1.3.3 Electronic Protect 4 1.4 Electronic Support 5 1.4.1 Low Probability of Detection/Interception/Exploitation 7 1.4.2 Future Communication Environments 8 1.4.3 Wired Communications 9 1.4.4 ES Summary 9 1.5 Electronic Attack 10 1.5.1 EA Summary 11 1.6 Typical EW System Configuration 11 1.6.1 System Control 11 1.6.2 Antennas 12 1.6.3 Signal Distribution 13 1.6.4 Search Receiver 13 1.6.5 Set-On Receiver 13 1.6.6 Signal Processing 14 1.6.7 Direction-Finding Signal Processing 14 1.6.8 Exciter 14 1.6.9 Power Amplifier 15 1.6.10 Filters 15 1.6.11 Communications 15 1.7 Concluding Remarks 16 References 16 Chapter 2 Electromagnetic Signal Propagation 19 2.1 Introduction 19 2.2 Signal Propagation 19 2.3 RF Band Designations 20 vi Introduction to Communication Electronic Warfare Systems 2.4 Polarization 22 2.5 Power Density 22 2.6 Free-Space Propagation 24 2.7 Direct Wave 27 2.8 Wave Diffraction 33 2.9 Reflected Waves 35 2.10 Surface Wave 40 2.11 Ducting 41 2.12 Meteor Burst 41 2.13 Scattering 42 2.14 Characteristics of the Mobile VHF Channel 43 2.15 Propagation Via the Ionosphere 46 2.15.1 Ionospheric Layers 46 2.15.2 Refraction 48 2.15.3 Near-Vertical Incidence Sky Wave 50 2.15.4 HF Fading 50 2.15.5 Maximum Usable Frequency and Lowest Usable Frequency 51 2.15.6 Automatic Link Establishment 52 2.16 Concluding Remarks 52 References 53 Chapter 3 Noise and Interference 55 3.1 Introduction 55 3.2 Thermal Noise 56 3.3 Internal Noise Sources 56 3.4 External Noise Sources 57 3.5 Cochannel and Multipath Interference 59 3.6 Concluding Remarks 60 References 60 Chapter 4 Radio Communication Technologies 61 4.1 Introduction 61 4.2 Modulation 63 4.2.1 Amplitude Modulation 65 4.2.2 Angle Modulation 67 4.2.3 Orthogonal Signaling 71 4.2.4 Access Methods 73 4.2.5 Duplexing 77 4
2021-03-30 23:44:15 6.89MB Communication Electronic Warfare
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Principles of Distributed Database Systems
2021-03-30 18:01:43 435KB 分布式理论
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事务锁
2021-03-30 18:01:41 172KB 事务锁
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Simulation Of Communication Systems Since the first edition of the book was published, the field of modeling and simulation of communication systems has grown and matured in many ways, and the use of simulation as a day-to-day tool is now even more common practice. Many new modeling and simulation approaches have been developed in the recent years, many more commercial simulation packages are available, and the evolution of powerful general mathematical applications packages has provided still more options for computer-aided design and analysis. With the current interest in digital mobile communications, a primary area of application of modeling and simulation is now to wireless systems of a different flavor than the traditional ones. Since the objective of modeling and simulation is to study and evaluate the behavior and performance of systems of current interest, the practice of simulation has naturally evolved along with the types of systems that have emerged or are being designed for the future. Nevertheless, to the extent that simulation is an embodiment of fundamental principles of several disciplines, communication theory in particular, the practice of modeling and simulation is still very much grounded in those basics. It is these principles, along with the many tricks of the trade that accompany their application, that still form the main focus of this second edition.
2021-03-06 19:46:02 14.75MB Simulation Of Communication Systems
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(1)ASN.1 Complete.pdf (2)ASN.1 Communication between Heterogeneous Systems.pdf
2021-03-04 13:55:44 5.72MB ASN.1
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