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How can we plot the response of Phased.Radiator excited by given input ?
Not sure if I understand your question correctly but let's say you have an antenna array defined as ant = phased.ULA(4,0.5)...

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How antenna array factor is related to FFT of antenna weights
FFT is simply a computation tool, you can interpret the result based on your application. Using your ULA as an example, the phas...

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step method of phased.URA: where is my phaseshift?!
The return you see is the response of each element at the specified degree. There is no phase shift between them. If you want to...

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psd vs pwelch in matlab
You should use |pwelch|. In R2009b, psd is deprecated because the resulting power spectral density is not properly normalized. T...

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Is the radiating angle of phased.Radiator specifies the beam boresight angle ? What if the weights in phased.Radiator speifies weights to point beam to some other direction ? Can we see the output pattern of the phased.Radiator ?
You are right that the weights determines the steered beam direction, but the signal arrives at the target may not always come f...

alrededor de 11 años hace | 0

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microphone plot response documentation results different from execution results
The documentation is not up to date. Thanks for catching that. The plot is now counter clockwise so the positive angles are abov...

alrededor de 11 años hace | 0

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Does anyone knows how to use wiener filter as bandpass filter? I have a signal whose frequency is from 0 to 9 hz and i want to filter signal 0 - 0.25 Hz,0.25 - 0.5 Hz, 0.5 - 0.75 Hz and so on. If possible please post MATLAB code for the same.
To my understanding, Wiener filter and bandpass filter are two different things. The purpose of Wiener filter is to make the out...

alrededor de 11 años hace | 0

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Performance study of MIMO - OFDM
The following example may be helpful http://www.mathworks.com/help/phased/examples/beamforming-for-mimo-ofdm-systems.html

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XCORR: How to find the location of the highest correlation on the actual data using XCORR
If you just need the highest peak location, you can simply use |max| [~,idx] = max(y1) HTH

alrededor de 11 años hace | 0

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problem about filter order in design tool
The reason for this discrepancy is because Hann window has a trailing zero at the end. And I believe in the info window, it didn...

alrededor de 11 años hace | 1

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Undefined function 'times' for input arguments of type 'struct'
If you are using doppler.jakes, it can only be used with channel object, as explained in the following documentation http://w...

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Problem in plotting Frequency Response
On the fvtool menu bar, you can click Analysis -> Sampling Frequency to specify the sampling rate. fvtool will then scale the f...

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[PhasedArraySystemToolbox] How to apply spectrum window
According to your code, you are comparing the signal you manually applied windowing with the result of matched filter when no wi...

alrededor de 11 años hace | 0

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Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

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Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

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Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

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FFT and IFFT: Change the values of complex number
Most likely you didn't maintain the symmetry when you setting this to zero. It would be helpful if you show the snippet where yo...

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[PhasedArrayToolbox] Why the graph doesn't reach the amplitude value?
Are you expecting it to be just like the first sample. If so, the waveform samples one period of pulse and it starts at time 0. ...

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How to find integral under the noise power spectrum
That's one way to do it, just make sure you also multiply the sum with the width of each bin. Alternatively, you can also use...

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Trajectory generation for robot
The following example may be helpful http://cn.mathworks.com/help/robotics/examples/path-planning-in-environments-of-differen...

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[PhasedArrayToolbox] IsotropicAntenna directivity issue
Hi Vitaly, You are right that the theoretical vale is 0 dBi. The directivity computation in this case is done using numerica...

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Where the parameters inside a simulink example are defined?
You may be able to find relevant information in the PreLoadFcn or InitFcn callbacks. you can access callbacks following the dire...

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Patch antenna modelling using phased.CustomAntennaElement object in phased array toolbox
Hi Frederick, The phased.CustomAntennaElement is not a physical modeling tool for Antenna. Its purpose is to model the measur...

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Merge multiple functions+scripts in single file
You can only declare subfunctions within a function so unless you are willing to rewrite your scripts into functions, you may no...

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Radio buttons in GUI
You may want to use button groups http://www.mathworks.com/help/techdoc/ref/uibuttongroup.html

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understanding how resp in phased.CustomAntennaElement works
Hi Philip, When you pass in |ang = [0 180]|, it is considered as two angles, az = 0 and az = 180. if you pass in |ang = [0;18...

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How to a use a User-Defined window function in the fdatool?
You just need to write a function to output that window. Then in fdatool, you can choose FIR, then set it to Window, and in t...

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How to use spectrum analyzer object to show a signal waveform ?
Its purpose is to show signal's spectrum fs = 1000; x = sin(2*pi*200*(0:1999)'/fs); hsb = dsp.SpectrumAnalyzer(...

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using plotResponse with ELANG
Hi Philip, You need to set H.ElevationAngleSource = 'Input port' and then run plotResponse(H,X,30) HTH

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