Chen
Defence R&D Canada Ottawa
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Provide your first answer ever to someone else's question
Awarded to Chen on 10 Jun 2020
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Awarded to Chen on 09 Oct 2019
Accept 5 answers given by other contributors
Awarded to Chen on 12 Dec 2017
Feeds
scatter3 in log-log-log
hello Can someone tell me the 'log' in set(gca,'Xscale','log','Zscale','log','Yscale','log') is in 'natural log'n or in log1...
presque 4 ans il y a | 0
Question
How awgn add white noise on complex envolope signal
Hello An I/Q baseband signal goes through Tx, the wave received by Rx at carrier (fc) with condisering receiver noise should be...
plus de 4 ans il y a | 1 réponse | 0
1
réponseHow to get received signal at the carrier when use Phased Array ToolBox
Hello HTH Many thanks for you answer! In order to do A(t)exp(1i*2*pi*fc*t). A(t) has to sampled at fs>=2fc. Please let me know...
plus de 4 ans il y a | 0
| A accepté
Question
How to get received signal at the carrier when use Phased Array ToolBox
Hello Following code is copied from help of phased.Collector, My questions are what is 'receivedsig' signal frequency? How t...
plus de 4 ans il y a | 2 réponses | 0
2
réponsesQuestion
how to let elements in each column of a matrix divided by the first element in each column
is there a simple way to let all the elements in a column of a matrix divided by the first element of each column, without using...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Add noise to multi-signals
I want to simulate a received signal which has three sins-wave signals at different frequencies with difference amplitudes and p...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
using Matlab RF toolbox to model multi-channel RF to IF downconvertor
Does someone have example to model, say 4-channel, RF to IF downconvertor with common LO? Thanks Chen
environ 6 ans il y a | 1 réponse | 0
0
réponseHow to generate complex envelop signal using chirp function
Hello Honglei Many thanks for your answer. What I want to do is that a URA gets 400 samples from the signal of a LFM(5MHz) mod...
environ 6 ans il y a | 0
Question
collect 400 samples from a LFM (5MHz bandwidth) signal modulated on 18GHz
f_sweep = 5e6; fs = f_sweep * 4.121; sLFM = phasedLinearFMWaveform('SampleRate',fs,'SweepBandWidth',f_sweep,'PulseWidth',1e-3)...
environ 6 ans il y a | 1 réponse | 0
1
réponseQuestion
How to generate complex envelop signal using chirp function
Matlab chirp function will generate cosine-based chirp signal, say from f1 to f2 with 10MHz linear chirp. How to modulate the si...
plus de 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
Generate signal with given RMSE and error distribution
Is there a way to generate a signal with a given root-mean-square-error (RMSE) and certain error distributions?
plus de 6 ans il y a | 1 réponse | 0
0
réponseQuestion
rotate elements in phase.ConformalArray
Hello In the following code, I designed a spiral antenna (sa), and used the sa in a cavity backed spiral antenna (CBSA). T...
plus de 6 ans il y a | 1 réponse | 0
1
réponseFrequency Sweep using Parallel Toolbox
Great, I will try it. Thanks Chen
plus de 6 ans il y a | 0
Question
How to include element response in collectPlaneWave
Hello in the following code, I designed a spiral antenna (sa), and used the sa in a cavity backed spiral antenna (CBSA). ...
plus de 6 ans il y a | 1 réponse | 0
1
réponseusing antenna element designed from Antenna Toolbox in Phased Array Toolbox
Thanks Honglei I know the way you suggested. For simple or easy antenna element this works will, as the element can be quickly ...
plus de 6 ans il y a | 0
Question
Get more antenna property calculations in one frequency sweep
I am running a Frequency Sweep to get a spiral antenna axialRatio. Can you get other antenna results, say current, pattern, impe...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Frequency Sweep using Parallel Toolbox
when I do frequency sweep to calculate an antenna property, say axialRatio, current, pattern ..., is there way to use parallel ...
plus de 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
using antenna element designed from Antenna Toolbox in Phased Array Toolbox
Once I designed an antenna element using Antenna Toolbox, how to input the designed element in a phased array?
plus de 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
Antenna Designee with Parallel Toolbox
When using Antenna Designer to design an antenna, say spiral antenna, is there way to use Parallel Toolbox to speed up calculati...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
change unit in Antenna Toolbox
Hello How to change unit in the Antenna Designer. I would like to use mil = 1/1000 inch as the unit for may antenna design. ...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
View helix elements the viewArray
When we view array using viewArray function, can we put real antenna element to replace 'balls' in the view. For example using ...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Where to find the phased.URA steering vector equation
after defined URA using phased.URA, using phased.SteeringVector, I can get the URA steering vector. 1. where I can find the mat...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
How to access 'TextBox' in viewArray figure
After viewArray plot the array structure, I would like to move the position of the 'TestBox' in the figure, but I do not know ho...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Move phased.conformalArray phase reference center
Once I use phased.conformalArray to create an array 1. where is the array phase reference center? 2. how to move the array pha...
plus de 6 ans il y a | 1 réponse | 0
1
réponseQuestion
Generate portion of circular array elements
Is there way to generate a equal spacing array which is a part of a circular array? Or Can you use a portion elements in a cir...
plus de 6 ans il y a | 1 réponse | 0
1
réponsemove xyz coordinate to (0,0,0) of the array in viewArray
Thanks Honglei Can you show me a example on how to move xyz to the 11th element in attached. Regards! Chen <</matlabcentra...
plus de 6 ans il y a | 0
how to make phased.CosineAntennaElement element pattern in z-direction
Many thanks, I tried and it works.
plus de 6 ans il y a | 0
| A accepté
how to make phased.CosineAntennaElement element pattern in z-direction
Hello David In my application, I use phased.ConformalArray. 1. there is no 'ArrayNormal' in it. 2. If my conformalArray is on...
plus de 6 ans il y a | 0
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