In sess , the special way producing the spreading codes determines that the spreading codes are more important in sess communication system 在自编码扩频通信中,特殊的扩频序列产生方式决定了自编码扩频序列对于整个系统性能的影响更是巨大的。
Consequently pn synchronization is the key technique in spread spectrum system , and is an important element to influence the performance of the whole system 因此，扩频序列的同步是扩频系统中的关键技术，也是影响整个扩频系统性能的重要因素。
Presently a lot of pn acquisition schemes have been proposed , but there always is a contradiction between the system performance and the hardware complexity 目前，人们提出的各种扩频序列捕获方案中，始终存在系统性能与硬件复杂度之间的一对矛盾。
Chaotic spread spectrum sequences , including direct sequences ( ds ) and frequency hopping ( fh ) sequences are designed utilizing chebvshev map chaotic system 采用离散混沌系统chebyshev映射设计了混沌扩频序列，包括直扩序列和跳频序哈尔滨工程大学博士学位论文列。
Make used of nonlinear dynamic equation and hyperchaotic circuit and through spread spectrum sequence or hyper chaos design the secure secrecy unit of hyperchaotic device 利用非线性动力学方程和超混沌电路，通过扩频序列或者超混沌设计出能够实现超混沌加密的单元器件。
The analysis shows that chaotic sequences can be used as spreading sequences due to their good properties . the results of simulations prove the reliability of the theoretical analysis 理论分析表明所产生的混沌扩频序列具有优良特性，可作为扩频码应用于扩频通信系统中。
This paper investigates the key technology of the ds - cdma system - psendonoise ( pn ) code acquisition technology . various pn code acquisition scheme has been introduced here 本文对ds - cdma系统中的关键技术?扩频序列的捕获?进行了深入的研究，介绍了扩频序列的多种捕获方案。
When we carry through the theoretic analysis , according to the request of cdma communication system for spreading code , we analyze the characteristics of chaotic spreading sequence 在进行理论分析时，根据码分多址通信系统对扩频码的要求，分析了混沌数字扩频序列的特性。
Multi - user detection executes the jointly detection fully using the spreading sequence , time delay x phase information and amplitude , the performance has enhanced as a whole Mud则充分利用各个用户的扩频序列、时延、幅度和相位信息对各用户进行联合检测，从总体上提高各个用户的性能。
In chapter 6 , the characteristics qualities relative to the spreading codes generated by ar filter are studied in this paper . such as correlative character , codes balance , linear complexity 因此在第六章中,本文就扩频序列所必须具备的几个特性对所产生的扩频序列进行了理论分析和实验仿真。
