Study on multi-navigation sensor system performance real-time and on-line appraisal method

From the actual project application,a real-time and on-line appraisal algorithm of navigation system is brought out under existing conditions of multi-navigation system.The weighting least-square technique is used for same measuring navigation system data.On the foundation of the open-loop Kalman filtering used for information fusion of different navigation systems,the final navigation result which is the performance appraisal benchmark of navigation system is obtained by two group of navigation results weighting processing.An online malfunction detection method of measuring navigation system is advanced.The experimental result indicats that this algorithm applied to carry on the appraisal to multi-navigation system,in the situation of non-increasing the system burden,has the higher performance evaluation precision,and is one feasible method.