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Dapat Chawah

E-mail: balaloon@hotmail.com
Company/University: ESEO/ France

Personal Profile:: I'm a stagier in the university of "Ecole superieure de l'electronic de l'Ouest'
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Comments and Ratings by Dapat		View all 1 - 3 of 3
Updated	File	Comments	Rating
20 Apr 2009	Learning the Unscented Kalman Filter An implementation of Unscented Kalman Filter for nonlinear state estimation. Author: Yi Cao	hello Dr.Yi This code is working good for N<=150 but when N exceeds this limit, a nonsense happens Is there any improvement to the code considering this error?
20 Apr 2009	Learning the Extended Kalman Filter An implementation of Extended Kalman Filter for nonlinear state estimation. Author: Yi Cao	Sorry, this comment is meant to be in the unscented kalman filter file discussion
20 Apr 2009	Learning the Extended Kalman Filter An implementation of Extended Kalman Filter for nonlinear state estimation. Author: Yi Cao	This code is working good for N<=150 but when N exceeds this limit, a nonsense happens Is there any improvement to the code considering this error?

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Type	Description
File	Learning the Extended Kalman Filter
File	Learning the Unscented Kalman Filter
File	fit_ellipse
File	fitellipse.m
File	CEF2Waterfall - CEF 2.0 data file to RF spectrogram

Files Matching Dapat's Watch List					View all 1 - 5 of 5
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
12 Dec 2010		Learning the Unscented Kalman Filter An implementation of Unscented Kalman Filter for nonlinear state estimation. Author: Yi Cao	dear prof yi cao, extended kal, kalman filter, unscented kalman filt..., state estimation, filter analysis	240	47	4.13333 4.1 \| 16 ratings
19 Jan 2009		CEF2Waterfall - CEF 2.0 data file to RF spectrogram Function to import a CEF 2.0 file and display a RF spectrogram of the measurement data it contains. Author: Ben Witvliet	cef, spectrogram, waterfall, itur sm1809, utilities, radio monitoring	4	0
23 Jan 2008		Learning the Extended Kalman Filter An implementation of Extended Kalman Filter for nonlinear state estimation. Author: Yi Cao	extended kalman filte..., filter design, state estimate, filter analysis, kalman filter, potw	349	46	4.21429 4.2 \| 30 ratings
29 May 2007		fitellipse.m Fit ellipses to 2D points using linear or nonlinear least squares Author: Richard Brown	approximation, conic, least squares, interpolation, fit, ellipse	107	18	4.66667 4.7 \| 6 ratings
02 Oct 2003		fit_ellipse Find the best fit for an ellipse using a given set of points (a closed contour). Author: Ohad Gal	ellipse, fit, plotting, ls, least squares, specialized	121	36	5.0 5.0 \| 37 ratings

Comments and Ratings Matching Dapat's Watch List			1-5 of 178
Date	File	Comment by	Comments	Rating
24 Apr 2013	fit_ellipse Find the best fit for an ellipse using a given set of points (a closed contour).	Amir		5
24 Apr 2013	Learning the Unscented Kalman Filter An implementation of Unscented Kalman Filter for nonlinear state estimation.	Chinedum	Thank you Prof. Yi Cao. I have a problem at this point: X=sigma(x,P,c) %sigma points around x It keeps saying: "Index exceeds matrix dimensions. Error in sigma (line 97) a=varargin{1}; b=varargin{2}; c=varargin{3}; d=varargin{4};" when i run this instead: X=sigma(x,P,c,[],1), it says: "Error using sigma (line 107) The A matrix must be square" Please does anyone have a solution to this? I can't seem to get past this point. Thank you.	Comment only
28 Mar 2013	Learning the Extended Kalman Filter An implementation of Extended Kalman Filter for nonlinear state estimation.	Aliko	ERROR!!! Input argument "wstate" is undefined. Error in ==> ekf at 51 [x1,A]=jaccsd(wstate,x); %nonlinear update and linearization at current state	1
27 Mar 2013	Learning the Extended Kalman Filter An implementation of Extended Kalman Filter for nonlinear state estimation.	Chinedum	Hi guys, i need some help please. I Use Matlab R2012b to try to run the code/example. I usually copy the whole code,place a new editor,highlight the example,right click,left click 'evaluate selection'(as i don't see any 'run').But on Matlab's command window, it shows the highlighted example and says "Undefined function 'ekf' for input arguments of type 'function_handle'." Please who knows what could be wrong? What could i be doing wrong? Thank you. John	Comment only
25 Mar 2013	Learning the Unscented Kalman Filter An implementation of Unscented Kalman Filter for nonlinear state estimation.	Gerardo Manzo	Dear Yi Cao, I have a problem with the correlation matrix of the measurement. It becomes non-positive definite for some parameters. How can I handle this problem? I have already tried same matrix validations but they do not work. I have to calibrate model's parameters with MLE. Any comment is appreciated Thanks G.	Comment only