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直升机卫星通信采用分集合并技术提高性能

摘要第5-6页
abstract第6页
Chapter 1 Introduction第12-22页
    1.1 Research Background and Significance第12-17页
        1.1.1Advancement of Satellite Communication system第14-15页
        1.1.2 Significance of Helicopter in Communication第15-17页
        1.1.3 Problems in Helicopter Satellite Communication System第17页
    1.2 State of the art第17-20页
        1.2.1 International Research Status第17-19页
        1.2.2 Chinese Research Status第19-20页
    1.3 Contents and Innovations of the Thesis第20-21页
    1.4 Outline of the Thesis第21-22页
Chapter 2 Theoretical Basics第22-39页
    2.1 Introduction第22页
    2.2 Helicopter Satellite Communication Channel Characteristics第22-31页
        2.2.1 Free Space Transmission Loss第22-24页
        2.2.2 Additional Link Loss第24-25页
        2.2.3 Multipath Fading第25-27页
        2.2.4 Shadowing decay第27-29页
        2.2.5 Helicopter Rotor Shelter model第29-31页
    2.3 Channel Analysis based on Experimental data and Statistics第31-34页
        2.3.1 Channel Measurement Method Analysis第31-33页
        2.3.2 Qualitative analysis of channel measurement results第33-34页
    2.4 Basic Helicopter Satellite Communication Channel Model第34-36页
        2.4.1 Simplified Channel第35-36页
    2.5 Walsh Hadamard Transform第36-38页
        2.5.1 Construction of Walsh Codes第36-38页
    2.6 Conclusion第38-39页
Chapter 3 Diversity Combining Schemes第39-54页
    3.1 Introduction第39页
    3.2 Concept of Diversity第39页
    3.3 Types of Diversity第39-42页
        3.3.1 Frequency Diversity第40页
        3.3.2 Time Diversity第40-41页
        3.3.3 Space Diversity第41-42页
    3.4 Diversity Combining Schemes第42-50页
        3.4.1 Selection Combining (SC)第44-47页
        3.4.2 Maximal Ratio Combining (MRC)第47-49页
        3.4.3 Equal Gain combining (EGC)第49-50页
    3.5 Performance Analysis of Diversity Combining Schemes第50-53页
        3.5.1 BER performance of MRC and EGC with Nakagami m-Channel第51-53页
    3.6 Conclusion第53-54页
Chapter 4 Modelling and Simulation of Diversity combining schemes in system ..第54-74页
    4.1 Introduction第54页
    4.2 Performance of WHCDM with time diversity:第54-55页
    4.3 Performance of System with WHCDM and Time Diversity第55-65页
        4.3.1 Simple WHCDM Implementation in System:第55-59页
        4.3.2 WHCDM implementation with Time Diversity in system第59-65页
    4.4 Performance of WHCDM with Equal Gain Combining第65-69页
        4.4.1 Transmitter for EGC and MRC schemes implementation第65-67页
        4.4.2 Receiver for WHCDM with equal gain combining第67-69页
    4.5 Performance of WHCDM with Maximal Ratio Combining:第69-73页
        4.5.1 Receiver for WHCDM with Maximal Ratio Combining:第70-71页
        4.5.2 Pseudo BER calculator第71-73页
    4.6 Conclusion第73-74页
Chapter 5 Conclusions第74-76页
    5.1 Concluding Remarks第74页
    5.2 Future Work第74-76页
Acknowledgements第76-77页
References第77-79页

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