CAJ | 학술논문

针对实际扩频通信系统对序列进行截短使用的需要,采用直接序列截短法对所获得的平衡Gold序列进行截短,通过MATLAB平台仿真,分析序列截短前后各方面特性的变化及影响程度.研究表明,序列截短后的平衡性及相关性等性能有所降低,但相比截短前的序列性能仍非常接近.为了保证序列截短后的性能满足实际系统的需求,应选择合适的截短方法和截短长度.
침대실제확빈통신계통대서렬진행절단사용적수요,채용직접서렬절단법대소획득적평형Gold서렬진행절단,통과MATLAB평태방진,분석서렬절단전후각방면특성적변화급영향정도.연구표명,서렬절단후적평형성급상관성등성능유소강저,단상비절단전적서렬성능잉비상접근.위료보증서렬절단후적성능만족실제계통적수구,응선택합괄적절단방법화절단장도.
For the needs of actual Spreading spectrum communication system to using the truncated sequence, this paper using the method of direct sequence truncated to the obtained balance a truncated Gold sequences. Ana- lyzing the characteristics change and influence degree of the sequence before and after truncating based on the MATLAB as the simulation platform to obtain the data and conclusions. The study shows that the balance and corre- lation of after the sequence truncated decreases, but performance is still very close with the sequence before trunca- ting. In order to ensure that after the truncated sequence performance meets the needs of actual system, should choose the appropriate methods and shortened length.