asjoshi@phoenix.Princeton.EDU (Amit S. Joshi) (02/03/88)
I am posting a message for a friend. Please send replies to the address given below or to me ( I shall forward them). ----------------------------------------------------------------- Hello!!!!!!!!! I am trying to implement a U-D implementation of the Kalman Filter Equations (discrete) and am having some problems. The reason I wanted to use the algorithm, was that I was getting negative values on the main diagonal of the covariance matrix, P. My version of the U-D algorithm gives me the same problem (and more to boot!). Any advice as to what mistakes I should be looking for or can I get a tried and ready algorithm in either PASCAL or FORTRAN for both the propagation and update equations? Thanks, Brenda Belkin | 6200265@PUCC.BITNET ------------------------------------------------- -- Amit Joshi BITNET | Q3696@PUCC.BITNET USENET | {seismo, rutgers}\!princeton\!phoenix\!asjoshi "There's a pleasure in being mad... which none but madmen know!" - St.Dryden