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MONOPULSE SUM and DIFFERENCE Antenna Patterns
Thanks for the feedback, the example could use better description and figure. This being said, the pattern itself is not wro...

8年以上前 | 0

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how to specity axis using imagesc
You can just do imagesc(linspace(0,1,40),linspace(0,1,200),A) HTH

8年以上前 | 2

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Anonymous Function Array Output
You are returning two separate outputs, the instruction says "The output should be returned as a 1D array" HTH

8年以上前 | 1

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Generating C code from MATLAB functions
Could you share which release are you using? Looks like your script is generated from filterDesigner (or FDAToll)? If you are us...

8年以上前 | 1

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How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

8年以上前

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fft dim parameter when ndims(x) > 2
If you have a multidimensional array x, say x = ones(3,4,5) then fft(x,[],3) will perform FFT on the dimension ...

8年以上前 | 0

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Repeat vector n times
Have you tried |repmat|, say n = 2; t_vec = [ion ion ioff ioff ioff]; repmat(t_vec,1,n) HTH

8年以上前 | 2

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How to avoid error calculation going to infinity when dividing by near-zero values?
There are several ways to handle this, for example, you can add one more line to set all those points to a predefined value ...

8年以上前 | 0

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Is there a simple code for matched filter?
You may want to take a look at the following thread <https://www.mathworks.com/matlabcentral/answers/4502-matched-filter> ...

8年以上前 | 0

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Rem function yields wrong output.
This is due to the round off error from floating point computation. The following link might be helpful <https://www.mathwork...

8年以上前 | 2

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Is there a way to extract numerical information on the antenna directivity as opposed to just visualizing it using the pattern command?
Yes, if you want the entire pattern, you can just specify an output, like [D,az,el] = pattern(array,fc,az,el,'Type','direct...

8年以上前 | 0

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How can we represent phased.waveform mathematically for sweep direction being up ?
The equation can be considered as x = exp(1i*2*pi*beta/2*t^2) where |beta| is |SweepBandwidth/PulseWidth|. HTH

8年以上前 | 0

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Filter design toolbox dont have quantization pane
Could you share the result of "ver" command? I think you need to have DSP System Toolbox to access that functionality. HTH

8年以上前 | 0

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What is the difference between designfilt and fdesign
Could you share which release you are using? You can find the info by runnig |ver| at the command prompt. HTH

8年以上前 | 0

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Beamforming using Frost beamformer
Below is a popular paper about Frost beamformer. It is also the reference used for Frost beamformer shipped in Phased Array Syst...

8年以上前 | 0

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How to use GUI to have some input values
How are you writing the GUI? In summary you need to write a callback function for the button so it knows what to do when you pre...

8年以上前 | 0

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how to find lomb periodogram in matlab
Have you tried |plomb|? <https://www.mathworks.com/help/signal/ref/plomb.html> HTH

8年以上前 | 0

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how to get fft of a signal?
The first figure is your signal, which has a DC component. You may want to remove that before running the FFT, like c = fft...

8年以上前 | 1

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How can I get the phase of the radiation pattern of a phased array?
Since you want a complex pattern, it will be a field pattern instead of power pattern. I would use ArrayResponse. Here is an exa...

8年以上前 | 0

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Direction of arrival estimation of a chirp (noised and attenuated) using Capon (MVDR) beamformer
If you have access to Phased Array System Toolbox, maybe you want to take a look at the following example. It may help you under...

8年以上前 | 0

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Undefined function 'pattern' for input arguments of type 'phased.ULA'.
In your release, you will have to use |plotResponse| instead. You should be able to find reference page for this function in the...

8年以上前 | 0

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Undefined function or variable 'Tw'
Looks like the issue is more on the |fprintf| line, not the function call. Indeed you are using variable name |Tw| in |fprintf| ...

9年弱前 | 0

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Split column data into two columns
Could you elaborate what you have as a matrix? If you are using character arrays, it should just be a 5-column matrix to star...

9年弱前 | 0

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我装完高阶谱的工具箱后每次启动matlab就弹出一个警告，说是INFO.XML不合法，请问这个怎么解决？
高阶谱工具箱是第三方工具箱，根据下面链接中的信息，最后更新是在2003年，所以它的info.xml可能不符合最新的格式。 <https://www.mathworks.com/matlabcentral/fileexchange/3013-hosa-...

9年弱前 | 1

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Convert Matrix to Vector in Simulink
You should be able to use Selector to do it. In your dialog, set Number of input dimensions to 2 set Index mode to one base...

9年弱前 | 0

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MIMO Multipath for specific array geometry
comm.MIMOChannel does not specify the array geometry directly. Rather it uses correlation matrix to include the array effect. To...

9年弱前 | 0

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Questions in FMCWExample about plotresponse and Nsweep
When you use a sweep time of 2 ms, as mentioned in the published example <https://www.mathworks.com/help/phased/examples/auto...

9年弱前 | 0

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How to plot loudspeaker frequency response from its impulse response?
Frequency response is the Fourier transform of the impulse response so you should be able to use |freqz| to compute it if you ar...

9年弱前 | 1

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target angle set up in a radar simulation without phase shifter
You should use |tgtang|. Note that what you do here is to synthesize the data. Therefore, even though the radar is not steering,...

9年弱前 | 0

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3D Rotation Matrix
I'm not sure if I fully follow your question, but here is my understanding. The first step is to find the coordinates of all po...

9年弱前 | 1

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