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
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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...
fast 4 Jahre vor | 0
Frage
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...
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortHow 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...
mehr als 4 Jahre vor | 0
| akzeptiert
Frage
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...
mehr als 4 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
mehr als 5 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 5 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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
etwa 6 Jahre vor | 0 Antworten | 0
0
AntwortenHow 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...
mehr als 6 Jahre vor | 0
Frage
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)...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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?
mehr als 6 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
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...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrequency Sweep using Parallel Toolbox
Great, I will try it. Thanks Chen
mehr als 6 Jahre vor | 0
Frage
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). ...
mehr als 6 Jahre vor | 1 Antwort | 0
1
Antwortusing 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 ...
mehr als 6 Jahre vor | 0
Frage
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...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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 ...
mehr als 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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?
mehr als 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
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...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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. ...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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 ...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
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...
mehr als 6 Jahre vor | 1 Antwort | 0
1
Antwortmove 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...
mehr als 6 Jahre vor | 0
how to make phased.CosineAntennaElement element pattern in z-direction
Many thanks, I tried and it works.
mehr als 6 Jahre vor | 0
| akzeptiert
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...
mehr als 6 Jahre vor | 0
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