Description:
The MathWorks calculation and visualization package.
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asynchronous machine modeling
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Dear all, im trying to model a asynchronous machine (wound rotor induction machine) as a generator. this is similar to a double fed generator but its not connected to the grid, im using a dc voltage source as supply to a inverter which is fed to the rotor side and resistance-inductor load connected to the stator side. the the frequency responce is fine, while the voltage output is not. as i increased or decrease the speed(mechanical input to the machine) there is no changes in the output voltage. i dont know where the problem lies, i need some help to identify what i shall do.... more »
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LEGENDS
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Hi my problem is, i want to hide an specific legend, i am ploting two equations and i just need to put one name in the legend..... the problem is that the legend box show me legends for both equations i want to hide one of them.... how can i do this?? thanks a lot!
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How to estimate ARMA-GARCH by QMLE
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I want to estimate parameters in a ARMA-GARCH model by quasi-likelihood. But functions of the GARCH toolbox, such as garchfit, are all based on maximum likelihood. How can I do the same thing under quasi-MLE? Do I have to programe it by myself? I just think someone else should have already solve it before. Many thx for your help!... more »
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Convert decimal to 24-bit binary
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How can i convert a decimal number to binary number LIMITED to 24-bits? I especially need to know how to do this in Simulink, but knowing how to do it in ML would help as well, seeing that i can just use an m-file block.
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Wholesale Cheap Jordans,Nikes,Air Max,Air Force 1
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Gray Encoding in Simulink
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How would I take a simulink signal and convert it to 24-bit gray? I have a method using the communications toolbox, but unfortunately i do not have that tool at my disposal. Any ideas?
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Speech and SNR
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Hi! I'm trying to solve this problem: I have a speech signal for witch I'd like to compute SNR. I found something about it when you know what the noise is (standard deviation, etc.). But I don't have this information, so I can't use equations with these values. Is there any way to obtain them from that speech signal? Or is there a way to compute SNR by another method?... more »
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Simulink RTW, real time problems
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Hello, I'm probably a relative rookie when it comes to simulink and real time workshop. I've been trying to get a simple program to run on real time and I think I must be missing something. Here's what I'm trying to do, I'm trying to simply send a signal through a usb port at real time. I've set up RTW with a discrete time step of .01, a total time of 20 units and generated the model. But both the simulation and the resulting program seem to run at a speed of higher than 20 sec. Its actually running at about 23 seconds. Am I missing something. I should probably venture into the optimization of the simulation but I was curious if you guys would have any insights or helpful remarks.... more »
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Gaussian fit in 3d? Need a direcction ...
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I?ve posted something similar to this before, but things have changed a bit so i am trying again. I need to multiply several 3d probability distributions. The end result is a probability blob in 3d. I want to aproximate that blob to a 3d Gaussian (x,y,z coordinates and value in the 4th dimension).... more »
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