很好的GPS/INS超紧组合导航的文章，关键词：GPS,INS，超紧组合导航，抗干扰-The performance of an Ultra-Tightly Coupled (UTC) Global Positioning System/Inertial Navigation System (GPS/INS) is evaluated using a system simulation of the GPS receiver and navigation processing.

Viterbi decoder is mainly used in communication systems where error detecting and correcting is so important. This based on trailis diagram decoding methos. Which will use minimum humming distance formula to predect error and get corrected data inste