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How can I find the indices where an array is closest to a certain value.
This may be helpful to your problem http://blogs.mathworks.com/pick/2007/06/20/zero-crossings-on-arbitrary-signals/

13년 초과 전 | 0

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remove the space between the bars in a bar chart?
Are you looking for something like below? bar(1:10,1:10,1) The last argument, 1, stands for bar width.

13년 초과 전 | 1

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Array indexing question for vectorization
You can try the following trick c = unique(IND) d = accumarray(IND',B',[],@prod) A(c) = A(c).*d(c)'

13년 초과 전 | 0

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OOP: How to avoid recalculation on dependent properties (I hope a MathWork Developer could give me an answer too)
Hi Ricardo, By definition, the value of dependent property depends on the values of object's other properties and probably th...

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Designing a Filter in MATLAB
You need to figure out a rule yourself because other people cannot know why the specific row is an error but others are not. Usi...

13년 초과 전 | 0

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How can design a circular array for sound beamforming application?
Hi Syamesh, Here is an example for producing a circular array. It is actually from the command line help of phased.ConformalA...

13년 초과 전 | 0

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Fibonacci Sequence Recursion, Help!
Several issues: (1) the result of fib(n) never returned. (2) Your fib() only returns one value, not a series You can chan...

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Magnitude of output signal after fourier transform filter?
If you want magnitude, it should be abs(f2)

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matched filter design of a given channel filter
conj(fliplr(hpof1))

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Question on plots i,e different line properties
You can use LineStyleOrder and ColorOrder to achieve the combination between color and line style. However, I'm not aware an int...

13년 초과 전 | 0

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square of a vector
My guess is you need an inner product, i.e. A = ||B-C||^2, you can do it many different ways, one way is B = ones(3,1); ...

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Compute average of each value in a matrix without using for
you can use |conv2| or |imfilter|, for example x = magic(3) y = conv2(ones(3)/9,x)

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Find Duplicates in cellarrays / use of subsindex for cellarrays
Is this what you are looking for? X = A(IA,:) Y = A(setdiff(1:3,A),:)

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How to send a set of bytes in fwrite or fprintf command?
Here is an example using |sprintf|, but |fprintf| is similar >> sprintf('0x%02x',24) ans = 0x18

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sgolayfilt function question ask
Do you have Signal Processing Toolbox installed? You can check if you have it by running ver Also, what does which...

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Windowing in a 2D-FFT non image matrix
I think the two approaches are equivalent, see the example below x = magic(8) w = hamming(8) fft2(x.*(w*w')) y1 = ...

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Question regarding FFT MATLAB demo
Hi Martin, In theory, Fourier transform can be performed using any number of data points. In old days, people prefer to ha...

13년 초과 전 | 1

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factor directional antenna array
Hi Pomisov, There are two ways you can see the directivity information. The first one is to plot the radiation pattern. Fo...

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can i design a dual band bandpass filter using fda tool in matlab
There is also an option for designing "multiband" filter in FDATool

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Does anyone know how to get technical assistance with the Phased Array toolbox?
Hi Michael, I sent you a follow up email regarding your last question on Monday. If you need any further information, please ...

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How do we pass our signal through the filter designed by us using FDA tool?
Say you generated the MATLAB file named |myfilter.m|. Then you can do the following to filter your signal |x| Hd = myfilter...

13년 초과 전 | 3

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Calculating the percentage in a matrix
Here is one way to do it in MATLAB A = [1 2 1;2 2 3;1 1 2]; [ua,~,uaidx] = unique(A(:)); uapercent = accumarray(uaidx...

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Need help understanding what this filter does
It is just an auto regressive filter, in your case, your filter coefficients are b = 0.2 a = [1 -0.8] So if you writ...

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Won't convert NaNs in cell array to zeros
You should use |isnan| to test whether a number is NaN or not.

13년 초과 전 | 1

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How to save a filename that is part user input and part text?
save(sprintf('%sadd',a),'x','-ascii')

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Distribute the values from fft() logarithmically - not plotting
If your frequency bins falls on frequency bins of an FFT, you can try Goertzel algorithm http://www.mathworks.com/help/signal...

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Normalized Frequency in Analog Filter Design.
Normalized frequency is for digital filters. If you want to design analog filters, they don't apply. Like you mentioned, you sh...

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Why does LinearFMWaveform require integer Sampling Rate / PRF ratios?
Hi Michael, The pulse supposed to repeat itself at the PRF. If the ratio is not an integer, then the waveform cannot be start...

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some Matlab functions are not implemented in their m files
Those are built-in functions and the MATLAB file is only for the documentation purpose. When you call such functions, MATLAB kno...

13년 초과 전 | 1

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How to use Floor command
This has nothing to do with |floor|, it's part of the floating point computation. See the link below http://matlab.wikia.com/...

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