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A message is the smallest basic cell of 1553B bus protocol. This paper discusses 10 types of messages to be transmitted over the bus, which are classified as normal command/response communications, mode commands, Broadcast commands. After this, the mechanism of message frame processing is expatiated detailedly.
Frequency estimation in passive location based on non-cooperative information sources plays an important role. And existing methods such as wavelet transform (WT) can't satisfy the precision of frequency estimation what is needed in location. In order to solve the puzzle, the Hilbert-Huang transform(HHT) is adopted in this article. HHT is based on the local characteristics of signals, which is an...
Zadeh Absurdity will appear in applying D-S evidence theory to fuse highly conflicting evidence. To solve the problem, a novel information fusion model is presented. Firstly, through calculating evidence information capacity, the model pretreats evidence of containing overlapping focal element; Secondly, the model utilizes evidence distance function to gain every evidence creditable degree which is...
An adaptive Extended Kalman Filter is derived for integrating inertial measurements from gyros, accelerometers with GPS pseudorange and pseudorange rate measurements. The adaptive filter uses an estimator based on state residual to provide a positive definite estimate of the process noise covariance matrix. The Genetic Algorithm is utilized to optimally determine the estimator’s parameter which is...
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