电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2012年
16期
122-125
,共4页
导航%CBOC%多相关器算法%接收机
導航%CBOC%多相關器算法%接收機
도항%CBOC%다상관기산법%접수궤
GNSS%CBOC%S-Curve shaping method%receiver
对BOC及其衍生信号CBOC(6,1,1/11)的时域频域特性进行分析和在Matlab环境下进行了仿真。根据仿真的信号特性,对已有的跟踪算法进行的分析和比较。基于工程实现和算法性能,选择了多相关器结构的算法(S-curveshaping方法),并根据此算法设计在原有接收机结构上进行改进,设计出了基于CBOC(6,1,1/11)接收机结构。最终对设计的接收机结构进行了硬件上的实现,完成了原理样机的制作。
對BOC及其衍生信號CBOC(6,1,1/11)的時域頻域特性進行分析和在Matlab環境下進行瞭倣真。根據倣真的信號特性,對已有的跟蹤算法進行的分析和比較。基于工程實現和算法性能,選擇瞭多相關器結構的算法(S-curveshaping方法),併根據此算法設計在原有接收機結構上進行改進,設計齣瞭基于CBOC(6,1,1/11)接收機結構。最終對設計的接收機結構進行瞭硬件上的實現,完成瞭原理樣機的製作。
대BOC급기연생신호CBOC(6,1,1/11)적시역빈역특성진행분석화재Matlab배경하진행료방진。근거방진적신호특성,대이유적근종산법진행적분석화비교。기우공정실현화산법성능,선택료다상관기결구적산법(S-curveshaping방법),병근거차산법설계재원유접수궤결구상진행개진,설계출료기우CBOC(6,1,1/11)접수궤결구。최종대설계적접수궤결구진행료경건상적실현,완성료원리양궤적제작。
The time-domain characteristics and the spectral-domain characteristics of BOC signal and its derivative signal CBOC (6, 1, 1/11 ) was analyzed and simulated under Matlab software. Then according to the characteristics of the simulated signal, the available tracking algorithms were compared and discussed. The S-curve shaping method was adopted, based on the consideration of hardware design and the performance of the algorithm. According to S-curve shaping method, new receiver structure of CBOC (6, 1, 1/11 ) was designed, based on the previous receiver structure. At last, the hardware platform of the receiver was realized, with the achievement of the prototype.