# Paul

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UAV Toolbox - Reference Frame Definition
In reference to the example on the linked page, I assume the waypoints are specified in the waypoint trajectory reference frame....

1 día hace | 0

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Fourier Series,Spectral Analysys
Define the function over one period T0 = 1; % period f0 = 1/T0; syms t s(t) = rectangularPulse(.2,0.8,t); figure fplot(s(t...

2 días hace | 1

Respondida
Add the line coder.extrinsic('readmatrix'); at the top of the Matlab Function after the %#codegen directive. Or, read in the ...

3 días hace | 0

Pregunta

Why Does dcm2angle Work Like This?
Suppose I have a direction cosine matrix, brought to my attention by a colleague C = round(angle2dcm(-pi/2,-pi/2,0,'ZYX')) Ext...

3 días hace | 0 respuestas | 0

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Hi 승표, It's not really an offset. The Integrator block parmameter 'Initial Condition' is set to zero, which corresponds to sett...

3 días hace | 2

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How can I get the energy of a wave?
Hi Li-Wun, This answer may be what's needed. If not, feel free to post back here with follow-up questions, preferably with exam...

4 días hace | 0

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Obtaining a dataset from bandpass function
Hi Patrik, Is the output argument 'y' from bandpass the filtered time signal that is needed?

8 días hace | 0

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Building symbolic expression with vars from vector
Hi ludolfusexe, It looks like the original code was attempting to use j as a index into an array, but symbolic variables are ne...

9 días hace | 1

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when i want to get magnitude of vector in command window told me that index exceeds matrix dimensions. although i write true code
Code works here v=[1 2 3 9 6] pp=v.^2 Rr=sum(pp) mag=sqrt(Rr) disp(mag) Check norm(v) Perhaps you have variable(s) named...

11 días hace | 0

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Cross-correlation in frequency domain and xcorr2 in MATLAB
Hi Shy, Assuming that the output of the xcorr2 is the expected result, it can be obtained with the changes below img1 = imread...

11 días hace | 0

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how to solve this problem?
Hi Federico, According to the nlssest, the variable names in the input and output time tables have to macth the InputName and O...

11 días hace | 1

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Difficulty in Calculating Signal Frequency with an Offset
Hi Raphael, The first point in the FFT is always the sum of the elements of the input. When the signal includes the offset, the...

11 días hace | 0

Respondida
I am getting different values of fft for the same variable as demonstrated by a simple example below...
I think you were expecting ES be equal to the first column of EF. If desired for fftshift to work along a specific dimension of...

11 días hace | 0

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Non-Negative Solution with Integrator in Simulink
Hi Rajmohan, Do the parameters Limit Output along with Upper and Lower Saturation Limit do what's needed? Integrator

15 días hace | 1

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Getting different outputs from indexing and graphically.How do I verify this indexing value?..
L=10; n=1.45; Omega=1.020663297455751e+11; GAMMAb=3.590391604102621e+08; c=2.9979e8; dt=6e-12; %time increment T=1...

16 días hace | 0

Respondida
I can't place the fft curve at the signal frequency exactly. There's been a slight deviation of the fft peak at that frequency
The code has fs = 80*fmax; but the TA vector is space by dt, so fs should be fs = 1/dt;

17 días hace | 0

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Are polyshape vertices preserved reliably without floating point errors?
Hi Matt, The doc pages for intersect, union, subtract, and xor all show a second output (ShapeID) that indicates if a vertex i...

17 días hace | 1

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I can't place the fft curve at the signal frequency exactly. There's been a slight deviation of the fft peak at that frequency
fmax=1e9; %maximun frequency of the signal fs=60*fmax; ts=1/fs; %time increment T=10e-9; ...

18 días hace | 0

Respondida
﻿I get a robust controller result using musyn that is empty; "Krob = [ ]".
Hi Peter, My compliments on the quality of and effort put into this post! Based on only a quick inspection, I have the followi...

18 días hace | 0

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Why does my Transfer function overshoots
Define the plant zeros = roots([0.075, 1, 1]); poles = roots([1, 3, 5, 0]); Gs = zpk(zeros, poles,1); As was pointed out by ...

19 días hace | 1

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different color to plot
There may be fancy way to do it with a single line (or other type of) object, but it's easy to do it with two t = 0:.01:1; y =...

20 días hace | 0

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How to fix conjugated chirp signal frequency shift in spectrogram
Conjugation in the time domain corresponds to reversal and conjugation in the frequency domain. To get a basic idea of what's g...

20 días hace | 0

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How to change frequency range doubling of Complex-valued Chirp Signal Spectrogram to match the Real-Valued Chirp Spectrogram
No, it appears there's no way to change that if you want to have spectrogram make the plot. Can use ylim to alter the plot afte...

20 días hace | 0

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why is NaN not of 'NaN type' in Simulink?
It looks like the block labeled "assertion1" is a Compare To Constant block. Instead use a Relational Operator block, which sup...

20 días hace | 2

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This doc page Dynamic Masked Subsystem is probably what you're looking for. Not sure if the number of inputs or outputs can be c...

22 días hace | 0

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Aerodynamic forces and moments
The doc page Aerodynamic Forces and Moments states that the outputs of the block are: Port_1 — Aerodynamic forces Aerodynamic ...

22 días hace | 0

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What's the correct syntax to set-up discrete convolution ?
The variable B contains one or more NaN values. Use isnan to find which ones and then review the the corresponding inputs to be...

22 días hace | 0

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How to interpret the amplitude of impulse() results
It sounds like the code needs to account for the difference between the convolution sum, as computed by conv, and the convolutio...

22 días hace | 0

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Cannot compute the root locus of models with complex data
Well, you can always loop through values of K and for each value of K solve for s that satisfies den(s) + K*num(s) = 0 and plo...

23 días hace | 0

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How to make double array representation as complex array with null imaginary number ?
In general, use complex A = rand(2); C = complex(A,0) If you have multiple real arrays stored in cells of a cell array, you c...

23 días hace | 1