# Junu Lee

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**Content Feed**

Question

I wonder what is difference between SISO and MIMO.

Hi, now i am studying about control theory. I wonder SISO and MIMO. The robot arm, for example, which is 6DOF, is controlled b...

3 mesi ago | 1 answer | 0

### 1

answerQuestion

"Derivative of state '1' in block 'PD_Control/Integrator2' at time 0.34 in not finite. There are may be a singularity in the solution..."

Hi, now i configures SIMULINK about robot arm. But in every time, the error is showed as above. I wonder the reason why erro...

4 mesi ago | 1 answer | 0

### 1

answerQuestion

My low pass filter is too much delayed than I wish.

//0.1Hz #define A_COEFFICIENT 0.99373647154161460000 #define B_COEFFICIENT 0.0032629372975755935...

11 mesi ago | 1 answer | 0

### 1

answerQuestion

I wonder why some have inputs and some don't in Kalman filter.

Whenever I study Kalman filter. I saw two kind of algorithms of Kalman filter. One has input matrix, the other don't have input...

oltre un anno ago | 0 answers | 0

### 0

answersQuestion

What is the relationship Q, R and P in Kalman Filter?

Now I'm studying Kalman Filter. Actually, I know what is Q, R, P, but I don't know how to regulate those. I set the noise of s...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

How can I can correct an integrator error under MATLAB /Simulink ?

Hi. I'm studying the control theory. As you know, PD control is the simplest control theory ever. So I advanced my step to...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

Matlab Simulink Error : An error occurred while running the simulation and the simulation was terminated

I have a problem when I run a simulink. I uploaded the file. Thank you..

oltre un anno ago | 0 answers | 0

### 0

answersQuestion

How do I use a filter...?

I obtain angular velocity data from AHRS sensor. Then I obtain angular acceleration by applying discrete differentiation each t...

oltre un anno ago | 0 answers | 0

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answersQuestion

How I can get a cutoff frequency. Also, I wonder how LPF can be applied.

Hi. I got experimental data from real robot arms. The attached file is the angular acceleration of each joint. I would like ...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

How can I obtain the frequency response and the cutoff frequency from sensor data text file?

I use the laser sensor for measuring the distance to obtain data. So I obtain a text file what I attach. The first columb is t...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

how can i install mex?

Hello I'm a matlab newbie. I confuse how to install the 'mex'. I found 'mingw.mlpkginstall' file but it doesn't work in comput...

oltre 2 anni ago | 0 answers | 0

### 0

answersQuestion

About rectangular pulse wave function code.

function y = rect_pulse(t_vec,tau) % This function generates a rectangular pulse of pulse width tau. % Generated pulse is ...

oltre 2 anni ago | 0 answers | 0

### 0

answersQuestion

What the difference between using bracket and not.

Hi I'm newbie of matlab. function varargout = redplot(varargin) [varargout{1:nargout}] = plot(varargin{:},'Color',[1,0,0])...

oltre 2 anni ago | 2 answers | 0