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From: zafaryaar on 15 Feb 2010 17:06
Hi,

I'm new to DSP and i have been given a task to do simulation of Digital
Beam forming using Uniform Concentric circular arrays.

I have to generate (by simulation) multiple adaptive spots beams on earth
by using Uniform Concentric circular array antenna on satellite.

Some main things to do are;

1: generate multiple spot beams on earth for mobile communication.
2: Uniform Concentric circular array antenna has variable number of antenna
elements in each ring
3: Generated beams could be steered in specific directions
4: sidelobe levels should be minimized

I was reading below mentioned paper ( i need to implement this kind of
approach for satellite)

"A novel wormy cellular structure for high altitude platforms mobile
communications" by Yasser Albagory

I have to show some results to my professor till end of February but I
don't know how to proceed. If any one could help me out and tell me what
steps to follow and how to do it. I will be really thankful.




From: Rune Allnor on 15 Feb 2010 18:23
On 15 Feb, 23:06, "zafaryaar" <zafargro...(a)gmail.com> wrote:

> I have to show some results to my professor till end of February but I
> don't know how to proceed. If any one could help me out and tell me what
> steps to follow and how to do it.

1) Open the textbook
2) Read it
3) Contemplate what you just read
4) Go to library
5) Find more textbooks
6) Read them
7) Contemplate what you just read
8) Search literature databases
9) Order relevant articles / books
10) Read them
11) Contemplate what you just read
12) Write summary of progress so far
13) Show professor

Rune
From: dbd on 15 Feb 2010 18:31
On Feb 15, 2:06 pm, "zafaryaar" <zafargro...(a)gmail.com> wrote:
> Hi,
>
> I'm new to DSP and i have been given a task to do simulation of Digital
> Beam forming using Uniform Concentric circular arrays.
>
> I have to generate (by simulation) multiple adaptive spots beams on earth
> by using Uniform Concentric circular array antenna on satellite.
>
> Some main things to do are;
>
> 1: generate multiple spot beams on earth for mobile communication.
> 2: Uniform Concentric circular array antenna has variable number of antenna
>    elements in each ring
> 3: Generated beams could be steered in specific directions
> 4: sidelobe levels should be minimized
>
> I was reading below mentioned paper ( i need to implement this kind of
> approach for satellite)
>
> "A novel wormy cellular structure for high altitude platforms mobile
> communications" by Yasser Albagory
>
> I have to show some results to my professor till end of February but I
> don't know how to proceed. If any one could help me out and tell me what
> steps to follow and how to do it. I will be really thankful.

How about implementing one of the beamformers in Refs 6 to 9 of your
article?

You haven't told us anything about the tools and skills available to
apply to the task. That doesn't give us any options.

Dale B. Dalrymple
From: Randy Yates on 16 Feb 2010 12:26
dbd <dbd(a)ieee.org> writes:
> [...]
> That doesn't give us any options.

As Spock once said in Star Trek TOS, "There are always options."
--
Randy Yates % "I met someone who looks alot like you,
Digital Signal Labs % she does the things you do,
mailto://yates(a)ieee.org % but she is an IBM."
http://www.digitalsignallabs.com % 'Yours Truly, 2095', *Time*, ELO
From: dbd on 16 Feb 2010 13:10
On Feb 16, 9:26 am, Randy Yates <ya...(a)ieee.org> wrote:
> dbd <d...(a)ieee.org> writes:
> > [...]
> > That doesn't give us any options.
>
> As Spock once said in Star Trek TOS, "There are always options."

That's because Spock knew what skills and tools he had available to
apply.

Dale B. Dalrymple
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