| 1. | Anti - interference performance analysis for modified complementary codes in cdma system
系统的抗干扰性能分析 |
| 2. | Complementary codes ( cc ) and complete complementary codes ( ccc ) have excellent orthogonality and correlation properties
互补码具有良好的相关特性和正交特性；即使在异步模式下，这些特性仍能保持。 |
| 3. | This thesis mainly investigates a novel cdma system based on orthogonal complete complementary codes ( ccc ) , i . e . ccc - cdma system
本文主要研究一种新型的基于完全互补码的cdma系统，即ccc - cdma系统。 |
| 4. | This thesis focuses on the performance of complete complementary keying modulation and multi - carrier cdma architecture based on complete complementary codes ( ccc - cdma )
本文主要研究了基于互补码扩频的cck调制性能和基于完全互补码扩频的多载波cdma系统性能，主要工作可以分为以下几个部分。 |
| 5. | The definitions and primary properties of complementary codes and complete complementary codes are given , which is the theoretical foundation of cc / ccc application in wireless communications system
介绍了互补码和完全互补码的定义，给出了它们的重要性质，这是其在无线通信系统中应用的理论基础。 |
| 6. | In chapter four , we tried to simulate the performance of the complementary code keying ( cck ) modulation in awgn and rayleigh fading channels and compared the theoretical performance with the simulated one
第四章对cck调制在awgn信道和瑞利衰落信道中的性能进行了仿真，并与理论性能进行了比较。 |
| 7. | First , the thesis introduces the correlation properties of complete complementary codes and compares with other traditional sequences . then the code generation principle is described , together with the software implementation
论文首先介绍了完全互补码的相关特性及与其它扩频序列的比较，阐述了完全互补码的产生原理，并完成了码字生成软件。 |
| 8. | Acquisition and tracking synchronizations of complete complementary codes are simulated , and carrier and frame synchronizations of system are also implemented . lastly , various aspects of the proposed system and possible future works are discussed
最后，总结了基于完全互补码cdma系统的优点及存在问题，讨论了本设计中所完成的工作，并对未来的工作进行了展望。 |
| 9. | The core of the proposed new cdma system is the use of orthogonal complete complementary codes , whose autocorrelation function is zero for all even and odd shifts except the zero shift and , whose crosscorrelation function is zero for all possible shifts
在本系统中，利用完全互补码处处为零的互相关特性和自相关的旁瓣为零的特性，可有效消除系统的多址干扰，提高系统的容量。 |
| 10. | Chapter three is our main block and work , it summarized the high speed physical layer extension ( ieee 802 . lib ) standards , explained in details the complementary code keying ( cck ) modulation and demodulation techniques , and then explained and developed the fast walsh transform ( fwt ) that has been used to increase the data rates of these protocols
第三章是论文的主要组成部分，也是本研究工作的重点。这一章总结了高速物理层标准增强版( 1eee802 11b ) ，并详细介绍了互补码键控( cck )调制解调技术，描述并改进了用于提高数据速率的快速walsh变换( fwt ) 。 |
