Stack Overflow
Stack Overflow

Questions tagged [state-space]

State-space models are models that use state variables to describe a system by a set of first-order differential or difference equations, rather than by one or more nth-order differential or difference equations. State variables x(t) can be reconstructed from the measured input-output data, but are not themselves measured during an experiment.

186 questions
0
votes
1 answer

Can state space matrix initial conditions be set by signals in simulink

I want to feed the initial conditions in state space matrix block in simulink by using signals "from-go to signal blocks". I m trying it with signal blocks but some errors pop up at the end and it says that the signal variables used as initial…
endthere
  • 11
  • 4
0
votes
1 answer

How can I extract from ssest matlab function the residues of a state space (e(t))?

A state-space model of a system with input vector u, output vector y, and disturbance e takes the following form in continuous time: d (x(t)) / dt = Ax(t)+Ke(t) y(t) = Cx(t)+e(t) In the MATLAB function ssest I am able to extract the A,C and the K…
tTimoteof
  • 1
  • 2
0
votes
1 answer

Is it possible to set initial state to a simulink model to do simulations?

Consider that I have built an electrical circuit or any other system at Simulink and to do simulations, Simulink should work in the sense that it builds a state space model of the system, right? If that is the case, is it possible to set an initial…
gustavoreche
  • 205
  • 4
  • 12
0
votes
1 answer

Error when solving symbolic system of ODEs using dsolve

I have been trying to use the command dsolve in Matlab to solve a set of ODEs, but I am getting these errors: Error in dsolve>mupadDsolve (line 332) T = feval(symengine,'symobj::dsolve',sys,x,options); Error in dsolve (line 193) sol =…
Taiwaninja
  • 3
  • 4
0
votes
3 answers

Address boundry error while using STL in C++

I was writing the program for finding a path through an defined matrix. #include #include using namespace std; class maze{ int inst[10][10]; int m,n,initr,initc,finalr,finalc; public: maze(int c){ if(c==1)…
Shashank Shetye Saudagar
  • 9
  • 3
0
votes
1 answer

Term for a Heuristic for 2 Arbitrary Nodes

Is there a term or expression for a heuristic function (as in pathfinding, state space, or combinatorial search) which can estimate the distance between any two nodes (goal or non-goal nodes)? Furthermore, is there a term for such a function which…
A Frayed Knot
  • 476
  • 5
  • 20
0
votes
1 answer

Matlab place function error

Interesting problem here. On our school's Windows server, Matlab can execute the place function in the following code perfectly well and return a 1x4 matrix assigned to variable K. However, the Linux servers, and Matlab on my personal computer…
michael_e
  • 3
  • 2
0
votes
1 answer

Pacman positions 120 how? AI course

I'm pursuing an Artificial Intelligence course online and I don't understand how the state space is calculated. In the following PDF on page 3 slide 2 it says that the possible pacman positions are: 12x10 = 120 Why is it so? And how did we get to…
anonn023432
  • 2,940
  • 6
  • 31
  • 63
0
votes
1 answer

JAGS Bayesian state-space modeling

I'm trying to use a state-space model to estimate population demographics (fecundity, survivorship, population growth, population size). We have 4 different age states. # J0 = number of individuals 0-1 # surv1 = survivorship from 0-1 # J1 =…
PendaFisi
  • 77
  • 5
0
votes
1 answer

Error using Unobserved State Space- ucm() in R

I am using ucm() function of package rucm in R. I am trying to predict sales where units is dependent variable and month,day,temperature are independent variables. While running code I am getting following…
Arushi
  • 251
  • 7
  • 15
0
votes
1 answer

Efficient way of running a multivariate linear state-space model across a large panel (Fama French)

I am attempting to estimate multivariate linear state space model across a panel of stocks. I have daily returns over 15 years and have aggerated them to monthly time series. As excepted, the issue that the entire process of MLE estimates takes a…
aatami11
  • 1
  • 2
0
votes
1 answer

Solving State Space Response with Variable A matrix

I am trying to verify my RK4 code and have a state space model to solve the same system. I have a 14 state system with initial conditions, but the conditions change with time (each iteration). I am trying to formulate A,B,C,D matrices and use sys…
user3814258
  • 1
  • 1
0
votes
1 answer

Transformation 2 input 2 output transfer function into state space model using MATLAB

I have 4 transfer function that are G11, G12, G21, and G22. And how do I convert this 4 transfer function into a state space model? The following are my codes, however, the results of state space model are different from the linearization using…
Ran
  • 25
  • 2
  • 5
0
votes
3 answers

R Matrix Multiplication

I have a List, R= [[1]] [,1] [,2] [1,] 100 0 [2,] 0 100 [[2]] [,1] [,2] [1,] 0.0006364031 0.2521204 [2,] 0.2521204236 99.9993643` I'm suppose to do F %*% R F [1,] 1 -6.264917e-04 [2,] 1 1.575666e-04 As…
ShinjiOno
  • 47
  • 5
0
votes
1 answer

State-space in simulink with one scalar input

I am using state-space block along with a mux in simulink. I am having two inputs so after passing through mux block I get a row vector. As state-space block accepts one scalar input so when a row vector is given as an input it doesn't work. Any…
Shayan Ali
  • 65
  • 2
  • 16
1 2 3
…
12
13