摘要
前期实际北斗模块定位误差统计分析中得出了北斗模块的定位误差分布服从正态分布,根据北斗模块定位误差分布的规律,利用在同一块电路板上的双天线模块接收北斗定位信号,将定位信息传给TMS320F28335DSP芯片,DSP对北斗模块给出的定位信息做实时算法处理,并将处理后的定位信息传给嵌入式ARM芯片,ARM芯片在TFT液晶屏上更新定位信息,同时根据用户要求来设置北斗模块的工作模式。在接收不到北斗定位信息时DSP利用UKF滤波算法,将预测定位信息发送给ARM芯片,并标记为预测信息,且显示在TFT液晶屏上。
It is concluded from extensive practical BD module statistical analysis that the orientation error of BD positioning error distribution of the module is normal distribution. According to the rule of BD positioning error distri- bution of the module, the double antenna on the same piece of circuit board module is used to receive the BD positioning signal. The location information provided by the BD module is sent to TMS320F28335 DSP chip for real-time algorithm processing, and the processed information is sent to the embedded ARM chips, which update location information on the TFT LCD screen, and set the BD module working mode according to the user settings. In failure in obtaining the BD positioning information, the DSP sends predicted location information by particle filter algorithm to the ARM chips, and marks as ＂predicted information＂ to be displayed on the TFT LCD screen
出处
《电子科技》
2014年第8期101-104,共4页
Electronic Science and Technology
