| Black box, constituted by flight data recorder (FDR) and cockpit voice recorder (CVR), play a very important role in air-accident investigation. Many cockpit voices are recoeded by cockpit voice recorder, such as flight crews’ voices, specific meanings background sounds and all kinds of noises. The in it is very complex.This issue is sponsored by Natural Science Foundation of China (NSFC) named Safety Prediction Diagnosis Research of Aircraft Based on Cockpit Voices Features Fusion (61071203). The cockpit voices from the real airplane taken as the objects, some basic researches are studied and some methods are presented based on information fusion, as follow:(1) Some fundamental researches about cockpit voice recording system and its voices. According to the previous work, some methods based on information have been brought forward just like number of lines.(2) Analyzing the characteristics of the voices, work out a typical voices analyze system based on MATLAB GUI.(3) Select 11 typical voices from different types samples, which recorded from real airplane, and then recognize them in the way of information fusion like production rule, kalman, and D-S evidence theory.(4) At last compare with the last two methods, and prove one’s superiority. These methods may play an important theory role and a good application effect in reinforcing the safety of air transport. |
