Inverse Problem

Acoustic tomography involves sending a sonic signal across a measurement area and timing how long it takes to travel the distance. A number of transducers are situated around the measurement area to achieve this. Since the absolute sonic speed is affected by temperature and wind speed, so is the...

Analysis and simulation of orbits in the circular-restricted three-body problem (CRTBP), where primary and secondary bodies move in circular orbits about the common center of mass, and effect of gravitational attraction of the smallest body are ignored. The applications described here are for...

SCIRun is a Problem Solving Environment (PSE), for modeling, simulation and visualization of scientific problems. SCIRun now includes the biomedical components formally released as BioPSE, as well as BioMesh3D. SCIRun is available for free and is open source. Acknowledgement: SCIRun is an Open...


Platforms: Windows

This Simulation model simulates Exercise problem 1.18 of Non Linear Systems by Hassan H.Khalil.Details About the parameters can be seen from the Model.


Platforms: Matlab

[FMAX,X] = KP01(W,P,C) solves the combinatorial optimization problem maximize F = SUM(P.*X), subject to SUM(W.*X)


Platforms: Matlab

Finds a (near) optimal solution to a variation of the M-TSP (that has a variable number of salesmen) by setting up a GA to search for the shortest route (least distance needed or the salesmen to travel to each city exactly once and return to their starting locations). The salesmen originate from...


Platforms: Matlab

The following problem is considered: given a matrix A in R(mxn), a vector b in R(m) and e>0, compute a vector x satisfying norm(Ax-b)


Platforms: Matlab

this function is contains "Transformation" and "Inverse"...which means Transfom 2D matrix or image, and then the user can use the same function for inverse to return 2D matrix


Platforms: Matlab

A collection of geodetic functions that solve a variety of problems in geodesy. Supports a wide range of common and user-defined reference ellipsoids. Most functions are vectorized. Functions include:Angle Conversions deg2rad - Degrees to radians dms2deg - Degrees,minutes,seconds to degrees...


Platforms: Matlab

Anthropomorphic arm with 6 DOF and spherical wrist It calculates the Inverse Kinematic of an Anthropomorphic arm with 6 DOF. 'q' is the solutions in radiant and K is the direct Kinematic matrix. K = [ n s a p; 0 0 0 1] where n, s, a are three vectors fo 3 elements that represents the...


Platforms: Matlab

A Lambert-orbital boundary value problem can be stated as"Find the orbit/trajectory of a spacecraft that flies from position [r1] to [r2], taking a time [tf] and making [m] complete orbits before arriving at [r2]. "The solution to each Lambert-problem is NOT unique; one can travel to [r2] via the...


Platforms: Matlab

The bridge-crossing problem is a mathematical puzzle wherea group of N persons have to cross a bridge at night. It is dark and they can only cross the bridge if they carry a lamp. Only one lamp is available and at most two persons can cross at the same time. It is not possible to cross from a...


Platforms: Matlab

[psi gopt] = dfdesign_w(phi, w, d);DFDESIGN_W computes the H-infinity optimal inverse filter of a given filter phi(z).The resulting filter psi(z) minimizes the H-infinity norm of the error systemE_w(z) = [z^(-d) - psi(z)phi(z)]w(z).If an error occurs, use "dfdesign_w_lmi.m".[INPUT]phi: target...


Platforms: Matlab

At the moment, the normal inverse Gaussian distribution is not included in the statistics toolbox. This collection of m-files supplements this toolbox with the most important functionalities for the NIG distribution: random numbers, moments, cdf, pdf and parameters by moment fit.


Platforms: Matlab

SAFKAS Perfect File Compilation solves the knapsack problem. You know the problem: You would fill a CD, DVD or a harddisk but there are to many files. How to fill the drive perfectly. What is the best space-filling compilation? How do you get the best solution? This ist very simple: Buy SAFKAS...


Platforms: Windows

This collection of files is an extension of the wavelet software package originally written by Torrence and Compo (http://paos.colorado.edu/research/wavelets/software.html)The main functions are:1. contwt.m: (continuous wavelet transform). This is essentially Torrence and Compo's wavelet.m with a...


Platforms: Matlab

There are many techniques used to deal with the problem of high PAPR in OFDM systems. An effective one is the Partial Transmit Sequence. It is simulated for QPSK modulated 64-subband OFDM system.Moreover, a .mat file of 100000 such OFDM symbols is available.


Platforms: Matlab

Y = DCTN(X) returns the discrete cosine transform (DCT) of X.X = IDCTN(Y) returns the inverse discrete cosine transform (IDCT) of Y.Y = DSTN(X) returns the discrete sine transform (DST) of X.X = IDSTN(Y) returns the inverse discrete sine transform (IDST) of Y.X and Y can be N-dimensional.D =...


Platforms: Matlab

Two simple models are provided showing the characteristics of basic iterative algorithms for the inversion of kinematics, namely the Jacobian transpose, its pseudo-inverse and the damped least-squares (DLS). The pro's and con's can be compared interactively for a serial two-links and a...


Platforms: Matlab

This kind of problem arises in statistics, linear algebra, and regularization.The method uses quadratic eigen-value problem (QEP).


Platforms: Matlab