**Run Simulink model in Matlab for UWB channel model problem**Hi,
I have been trying to use UWB Channel Model by Robert Morelos-Zaragoza
in my MATALB code for UWB system. However, when I try to use 'sim' in Matlab command it gives me following error.
>> [T,X,Y]= sim('IEEE802153a_channel_model_test.mdl',[0 1e-7],[]);
Warning: The discrete states in model 'IEEE802153a_channel_model_test' cannot be logged as a matrix because the model has non-double or complex discrete states. Use 'structure' format to log states (see Save Format in Configuration Parameters dialog or simset command).
I have tried chan...

**calling simulink model from inside simulink model**I need to execute a simulink model from inside another simulink
model.
It is like executing m-file from inside of another m-file.
for example
for i:100
ADDING <---- this is m-file
end
I want to do something like this with simulink model.
Jangho Yoon wrote:
> I need to execute a simulink model from inside another simulink
> model.
>
> It is like executing m-file from inside of another m-file.
>
> for example
>
> for i:100
> ADDING <---- this is m-file
> end
>
> I want to do something like this with simulink model.
Search for "mo...

**Systems view on channel models**Hi Everyone,
I would like to get your opinion on which wireless channel model parameters
are really helpful or crucial to systems design for real system
implementation.
In general, delay spread is one, so a tapped-delay channel model would
suffice. If the wireless system uses MIMO, then angular spread may also be
added.
One could argue, however, that the needed parameters would depends on the
application. I would like to keep the discussion open. So citing system
applications, and then their crucial channel parameters as used in
simulation for the purposes of implementatio...

**simulink models of Earth systems**Does anyone knows of simulink models emulating catchment
geomorphological dynamics such as sediment detachment and transfer,
landsliding, soil erosion, basin sedimentation, stratigraphy or
anything else?
thank you in advance
Filippo
...

**modelling baseband channels in simulink**Hi,
I'm pretty new to simulink, and I want to use it to simulate different data
coding schemes for transmission over say coax cable. I figure one of the
first things I need to do is get the frequency response of the
communications channel. Since simulink deals with samples and frames (still
not sure about the differences here), i.e. discrete time, I guess I should
sample the channel frequency response, and implement the channel as a FIR
filter? One of the things I'm unsure of is how to simulate reflections due
to impedance mismatches. Is this easy to do in simulink? And finally, ...

**Channel Estimation in CDMA systems**Hallo everybody,
I was wondering which methods could be used to estimate the channel impulse
response in a CDMA system, where the receiver catches the superposition of
many users' signals spread with different pseudo-random codes. I would just
need the channel estimate for two of these many users and I wouldn't need
any detection of the data, I'm *only* interested in the channel estimate. A
fixed training sequence is provided.
Is there any chance of doing it at symbol rate?
Thanks
VD
On 09/22/2010 08:17 AM, vitus81 wrote:
> Hallo everybody,
>
> I was wo...

**Getting an simulink model to run from a GUI when the simulink model is a variable**Hey guys, can you help me with this. I am looking to get a a simulink model to run in my m-file. I know that if my simulink model is called BusAssignment then to simulate it you would use sim('BusAssignment') but the problem is that the program might not know the name of the simulink model so it needs to retrieve it. I plan on doing this using a GUI with the edit txt box tag called "simulinkname". So how do you get the name typed in the GUI (which is the name of the users simulink model) to simulate?
Any ideas?
Thanks!
Regards,
Conor
...

**Channel model for simulink/matlab**In high speed link design environment, the channel models are always
given in s-parameter format.
(ref: <http://grouper.ieee.org/groups/802/3/ap/)>
Does anyone know a good methodology to use these measured s-parameter
data as the channel model in simulink?
If I have a impulse response of the channel, can I use that in the
simulink?
Thanks,
Jack
Jack wrote on 31-05-05 09:34 :
> In high speed link design environment, the channel models are always
> given in s-parameter format.
> (ref: <http://grouper.ieee.org/groups/802/3/ap/)>
actually, it's this:
http://grouper.i...

**PV Systems Modeling On Simulink**Good morning fellow MATLabers...
I am doing research on PV (Photovoltaic) System Degradation on panels... I was wondering if any of you know of any Simulink library that can be downloaded or that is available to Simulate the PV Systems.
Next I was wondering if anybody can guide me on how to create my own library or modify existing libraries to do exactly what I need.
Thanks
"Albert " <aleytevidal@gmail.com> wrote in message <h350hp$d0s$1@fred.mathworks.com>...
> Good morning fellow MATLabers...
>
> I am doing research on PV (Photovoltaic) System Degradatio...

**distribution system modelling in simulink**I modeled a IEEE 13 bus system in simulink. but i found a problem in entering the transmission line parameter given by the IEEE . whether the distribution system can be modeled using simulink? if it is possible, giude me how to enter parameters for transmission line, transformer and circuit breaker.
"Avr " <arunchunaikarthi@gmail.com> wrote in message <jafdfs$7s8$1@newscl01ah.mathworks.com>...
> I modeled a IEEE 13 bus system in simulink. but i found a problem in entering the transmission line parameter given by the IEEE . whether the distribution system can be mo...

**Problem with channel estimation in OFDM systems**Hi,
I am presently working on a real time implementation of OFDM system.
using CP-OFDM with adaptive bit loading and intend to carry out th
channel estimation using RLS algorithm.
However, the implementation of RLS which I have tried from Fischer, yiel
very random and unpredictable result. One of the major problems is that i
the input data is constant, then the algorithm never converges. Eve
otherwise, the convergence is based on the pattern of the input data.
have observed that on changing the channel parameters, the new estimate
generally have an overshot value of the first tap and reduc...

**Equivalent Simulink Model for Hydraulic System**Hi,
I would like to have an equivalent Simulink model for a Hydraulic circuit. I tried using the equations from SimHydraulics Toolbox reference guide but, the results are not the same. A simple application i am using is to control the hydraulic cylinder's motion. The inference from comparing my Simhyraulics model and Simulink model show that for extend the position tends to about 30% (of stroke) plus the cylinder stroke length and then smoothens the curve to reach about 10% (of stroke) plus the cylinder stroke length with some peaks and stays for a while if there is still a input pressure...

**System identification modelling in simulink problems**Hi Guys,
I'm trying to do run a simple model in simulink based on the results of a model created with System Identification toolbox.
This image shows what I have done:
http://ploader.net/files/5cdd0f0be17a14f59278507cca2aba6c.png
[URL=http://ploader.net/#5cdd0f0be17a14f59278507cca2aba6c.png][IMG]http://ploader.net/files/5cdd0f0be17a14f59278507cca2aba6c.png[/IMG][/URL]
As you can see the model fit in the toolbox looks ok but when export the "mydata" and "arx440" to the matlab workspace and put them in my simulink model the output from the model doesnt match w...

**simulink models for physiological control systems**Hi
can anybody help me about converting differential equations in to
SIMULINK models?
From where can I get SIMULINK models for physiological systems like
body temperature control. This is for educational purpose.
"chandresh" <crchaudhari@yahoo.com> wrote in message
news:eee4946.-1@webx.raydaftYaTP...
> Hi
>
> can anybody help me about converting differential equations in to
> SIMULINK models?
>
> From where can I get SIMULINK models for physiological systems like
> body temperature control. This is for educational purpose.
Take a look at some of the te...

**simulink model of any flight control system**hi ,evry one, Is any one having a simulink model of any flight
control system like f-18 e.t.c or any papers and links related to
that.
eagerly waiting for your reply
hi matsi
In Matlab Command window type:
f14
And it will opens a model of f14.
Bye
Mario
matsi wrote:
>
>
> hi ,evry one, Is any one having a simulink model of any flight
> control system like f-18 e.t.c or any papers and links related to
> that.
>
> eagerly waiting for your reply
hi mario, i really appreciate u r help. can u plz tell me where i can
get the models for f-18 .
Mario Cardoso wrote:
>...

**Parameter estimation using Simulink model**I have conducted a THz experiment to measure the conductivity of CNTs. Now I have a set of experimental data using which I plotted conductivity vs. frequency graph. I need to compare it with various conductivity models. But in every model, for example- Drude Smith model, there are many non- linear parameters and I need to find out those values for the set of parameters for which the theoretical curve fits the one I got from the experimental data. Is there any method that I can use? Can anyone help me here?
...

**channel estimation for mc cdma systems**i am currently working on channel estimation for mc cdma system. i
should simulate about that subject in matlab. i ask if some one can
share me his simulation or can give me some help.
cheers...
...

**How do/should I model a mult-stage dynamic system in Simulink?**Can anyone direct me to an example Simulink model or link that
describes a method to model a multi-stage dynamic system such as a
staged rocket in which force, moment, and control system models
change with stages? I would like to treat mass properties as
discontinous states at the stage points. Thanks
...

**Parallelization of Simulink model of MIMO-OFDM channel**Hi guys,
I wish to parallelize the MIMO-OFDM channel using the Simulink Model
Can you advise me how to proceed????documentation???
Thanks
...

**Where to start? Modeling a UAV Control System in Simulink**Hi,
I have a small project coming up, based around modeling (and perhaps building) a small Micro UAV system. Its a small device with contra-rotating blades (for stability), and I want to perhaps model the control system using simulink but I really don't know where to start! The aim is for the system to be able to hover and stabilise itself. I've used Matlab a lot in the last 4 years, and simulink a couple of times, but I need a bit of pointing out what to start with and how to go about doing this.
Can anyone point me in the right direction? I've spent the past 3 weeks trying to f...

**Pblm with Channel Estimation in STBC in Wlan Simulink**Hi everyone I am not getting Correct BER in Wlan. Even on very HIgh SNR as displayed below I get BER of .2 as given below and at desired SNR i get completely wrong results
I have Tested Simulation several times and find out that pblm resides in STBC combining block where channel estimation is done
A Wlan system has middle 12 Subcarriers zero also in training symbol I remove them and replace them via linear interpolation May be I am wrong here. Ihave also Highlighted some unappropriate constellation positions in "Discrete Time Scatter Plot".
need help Thanks.
http://img87....

**Hydraulic Systems Modeling in Simulink**hi,
I am starting my adventure with Simulink, and I have to model power steering
system. I am looking someone who knows something about that.
Is there in Simulink Hydraulics element library?? I have version 6.5 and I
wasn't able to find it, but there is an exampe with
such elements.
Thnx for any help.
Maciek (Poland)
...

**Simulink parameter estimation toolbox for Nonlinear models**I am using fourth order polynomial equation as a nonlinear static
element and linear algebric equation as dynamic element in
Hammerstein model. My model has 10 unknown parameters. I am having
input-output data with time. Can I use gain block to represent the
unknown parameters in the model? Is there any other alternative way?
Expecting reply in this regard.
...

**simulink model of any flight control system #2**hi,Is any having any simulink model of a flight control system like
f-18 ,or any papers or link that are related to that.
Eagerly waiting for u r reply
hi again, matsi
In Matlab Command window type:
f14
And it will opens a model of f14.
Bye
Mario
matsi wrote:
>
>
> hi,Is any having any simulink model of a flight control system like
> f-18 ,or any papers or link that are related to that.
>
> Eagerly waiting for u r reply
...