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David Marshall
David Marshall
最後のアクティビティ: 2024 年 1 月 23 日

Hello Community!
We are working on a new translation experience for the MathWorks website and products. The goal is to make it easy for people to see content in the best language for them.
Step 1 is learning from those of you who use another language instead of, or in addition to English. If this sounds like you, we'd love your response to a brief survey.
Feel free to comment here as well. Thanks in advance!
Pavel
Pavel
最後のアクティビティ: 2024 年 1 月 24 日

We've released an open-source implementation of STIPA (Speech Transmission Index for Public Address) on GitHub!
What is STIPA?
Speech Transmission Index is a metric designed to assess the quality of speech transmission through a communication channel. It quantifies the intelligibility of speech signals based on amplitude modulations, providing a standardized measure crucial for evaluating public address systems and communication equipment. STIPA is a version of STI using a simplified measurement method and only one test signal.
Quality Representation:
STI values range from 0 to 1, categorizing speech transmission quality from bad to excellent. The raw STI score can be transformed into the likelihood of intelligibility of syllables, words, and sentences being comprehended.
Verification Tests:
To ensure reliability, we've conducted verification tests according to the IEC 60286-16 standard. Download the test signals and run the stipaVerificationTests.m script from our GitHub repository.
Control Measurements:
We've performed comparative measurements in a university auditorium, showcasing the validity of our implementation.
License:
Our STIPA implementation is distributed under the GNU General Public License 3, reflecting our commitment to open-source collaboration.
sky
sky
最後のアクティビティ: 2024 年 1 月 18 日

I'm having problem in its test 6 ... passing 5/6 what would be the real issue..
am wring Transformation matrix correct.. as question said SSW should be 202.5 degree...
so what is the issue..
AMIT SURYAVANSHI
AMIT SURYAVANSHI
最後のアクティビティ: 2024 年 1 月 13 日

i am just thinking to make a project on software defined ratio SDR using matlab and its toolboxes but I am UG student in ECE don't know how to start can we have discussion here and want the guidance from the best or good persons in the field of wireless communication
Hassan Ali
Hassan Ali
最後のアクティビティ: 2024 年 1 月 11 日

Hello everyone,
Im trying to simulate an 3-phase inverter, and for analysis of semicondcutor switches cuurent and voltage, I witness some unusal behaviour. I have connected a current sensor to the drain to calculate and visialize drain current, but the waveform is lookibg something like in picture if instaneous overshooting when going form high to low or vice versa, and the magnitude of the overshooting pulse can reach upto 500 Amps.
Kindly, guide me what am i doing here wrong? and one more thing is that I have set the Ids current to be 63Amps for N-channel Mosfet, but the output is 42-44 Amp max, what could be the reason behind it?
Thank you in advance!!
DGM
DGM
最後のアクティビティ: 2024 年 1 月 2 日

I noticed a couple new replies show up on the recent poll a day or so ago, but since then, the page can't be loaded anymore in any browser I've tried.
xingxingcui
xingxingcui
最後のアクティビティ: 2024 年 1 月 4 日

Is MathWorks going to spend 5 years starting in 2024 making Python the #1 supported language?
I'm not sure it's authentic information, and am looking forward to a high level of integration with python.
Reference:
Hassan Ali
Hassan Ali
最後のアクティビティ: 2023 年 12 月 27 日

Hello Everyone,
I want to model an electric vehicle in simscape electrical, I have few quiries regarding it.
  1. I have modelled an 3-Phase inverter, and used ee_getPowerLossSumary to get switching losses, and the results are okay as i was expecting, but now is there any other function to calculate conduction losses?
  2. I want to connect a BLDC motor, I have few parameters from manufacturers datasheet, but not all the parameters, so what would the best way according to your understanding, to model motor losses (Copper + Core).
I'm trying to calculate major fundamental losses of an EV. Looking for your inputs on this.
Thank you!
Xiaotong
Xiaotong
最後のアクティビティ: 2024 年 1 月 4 日

Hi! I'm new to pk modeling and Matlab. Can someone guide me through how to conduct population pk modeling based on pk parameters from non-human primate studies? Much thanks!!!!
Junjie Guo
Junjie Guo
最後のアクティビティ: 2023 年 12 月 20 日

I have encountered a problem. I want to study the direction of PHEVP2 configuration energy control strategy, but the whole vehicle model has stumped me. I don't know how to proceed, and every time I run, an error message will be reported. I don't understand where the problem lies?
er
er
最後のアクティビティ: 2023 年 12 月 7 日

How to Simulate a Synchronous Compensator in Simulink?

Elija
Elija
最後のアクティビティ: 2024 年 2 月 14 日

Hello, all!
This is my first post after just joining this discussion, so please forgive me and provide kind assistance if I have posted to the wrong subsection!
I have a good interest in learning sql server course and right now I am taking help from various platforms like https://www.coursera.org/ https://www.udemy.com/
Also I have a doubt that is it a good option to learn from platforms like this or I should go for some sql server online training . I have searched for the solution of my queries in various above platforms which helped me up to some extent only as it was not directly given by any expert or trainer.
Hoping in getting a quick response
Thankyou in advance.
Adrian Segura
Adrian Segura
最後のアクティビティ: 2023 年 11 月 28 日

Hello, I am a student and I am working on a neural network for a line follower car and I would like you to recommend a tutorial to implement it in simulink.
Daniel Bending
Daniel Bending
最後のアクティビティ: 2023 年 11 月 15 日

The title is resonably non-descript, but I can explain it easily:
Say I have an initial Emax model:
v = emax1*[G]^n1/(ec501^n1+[G]^n1)
And I want to place v inside of a second Emax model:
y = emax2*v^n2/(ex502^n2+v^n2)
Currently, I have the full function of v inside y, twice, it's very long and whilst I only need to get it correct once, for readability in the future I'd rather have it in form #2. I've played around with non-constant parameters but I need the steady state to be v, not the rate rule, and I haven't worked out how to make a parameter shift to a form like v, as an observation might.
Are there any recommended solutions or do I simply need to keep with having v fully expressed in y?
Thank you,
Dan
LAWAN HARUNA
LAWAN HARUNA
最後のアクティビティ: 2023 年 11 月 6 日

good afternoon everyone my name is Dundu lawan haruna ,i'm a final year student at the department of computer engineering ABU Zaria, Nigerian , and i wanted to do my final year project based on computer vision : project topic , designing an eye glasses to help those people with visual imparement to be able to navigate enviroment efficiently , that's why i need a support from you guys ,all advised are highly well come , thank you for your support.
Daniel Bending
Daniel Bending
最後のアクティビティ: 2023 年 10 月 31 日

Hi All,
I'm currently attempting to implement a Hodgkin-Huxley-type model of membrane potential, ideally I would like a species that represents the membrane potential as its own distinct entity, so as the reference elsewhere. I've currently established a molarity-based work around but it would be great if I could set the units for the species as millivolt, but that throws an error.
Is there an established way to do this? I imagine I'm not the first person to be trying to model a voltage-gated ion channel!
Thank you for your help.
Image Analyst
Image Analyst
最後のアクティビティ: 2023 年 10 月 31 日

Just in time for Halloween.
Chen Lin
Chen Lin
最後のアクティビティ: 2024 年 3 月 12 日

Share your fun photos in the comments!
Daniel Bending
Daniel Bending
最後のアクティビティ: 2023 年 10 月 31 日

Hello,
I've looked around and I haven't found anything obvious about this, but is it possible to link to species/reactions, graphically, in a non-mass transfer sense? I have areas in my model where it would conceptually make sense to be able to see that species or reactions are linked, but if I link them in the standard way it demands that it be involved in the stoichiometry.
Perhaps some kind of dotted line, or similar?
Thank you, best regards,
Dan