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wenlong


beijing ensky technology

Last seen: 2 months ago |  Active since 2016

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what's the mean of the plot of sigma function
Hi I used the sigma function to plot frequency response of 4 inputs, 9 states and 4 output linear mimo systems, and the figure ...

4 years ago | 0 answers | 0

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answers

Question


How to get dynamic response using unitary eigenvectors as initial conditions to excite modes
Dear all, I found in the book, Adances in uUnmanned Aerial Vehicles State of the Art and the Road to Autonomy In page 130, cha...

4 years ago | 0 answers | 0

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answers

Answered
Matlab Terminate. Disabled - No sandbox or build area path.
I got this problem in MAC OS, how to resolve it? Thanks

5 years ago | 0

Question


How to register GNU tools for arm embedded processors?
When I tried Embedded Coder for STM32, it said The selected toolchain ('GNU Tools for ARM Embedded Processors') is not registere...

7 years ago | 0 answers | 1

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answers

Question


Did anybody know how to close scientific notatin in simulink model
I built a simulink model, there was an very small gain 5.42e-6, could you help me to express it as 0.0000542? Thanks

7 years ago | 1 answer | 0

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answer

Question


why always serial port unsucessful read
I set baudrate = 115200, and did not set others, then I open the serial, hope to read data from serial but it always said the un...

7 years ago | 0 answers | 0

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answers

Question


how can I find a short int array from a long int array
Now I have a long int array including some short array such beginning with 55 and ending 00, whose length was 10, but the conten...

7 years ago | 1 answer | 0

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answer

Question


when I open a serial port, why the matlab is always busy?
I'm using Matlab R2015b, I set the serial as following: s = serial('COM3', 'BaudRate', 115200) then I using fopen(s) to open t...

7 years ago | 0 answers | 0

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answers

Question


erros when building asbhl20
I'm using Matlab R2014b, when I built the asbhl20 model, there was an error as following: 'asbhl20/Variant/Previously saved dat...

7 years ago | 0 answers | 0

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answers

Question


About simulation HL-20 using FlightGear
Hello, I try to use MATLAB R2014b to simulate the HL-20 with FlighGear 2017.1.2. I just follow user's guide, but did not find t...

7 years ago | 0 answers | 0

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answers

Question


Is there any function like movstd in R2015
Does anyone know how to calculate moving average or variance using R2015? Thanks!

8 years ago | 1 answer | 0

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answer

Question


How to translate 32-bit number to float number
The acquired data is expressed as '6D61803F', this may be a little-endian. I translated it to '3F80616D', then I got the float n...

8 years ago | 1 answer | 0

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answer

Question


About the Number property of figure function
How to set the Number property of figure function of 2015B? Each time I set like this: figure('Position', [9 39 900 300], 'Num...

8 years ago | 1 answer | 0

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answer