[Ground-station] Link budget

Thu Jan 21 10:54:04 PST 2021

Many are now using R + Python for fitting, plotting, and stats:

https://medium.com/@iliakplv/r-python-integration-487c16c61787

https://rstudio.com/solutions/r-and-python/

John

On Thu, Jan 21, 2021 at 1:48 PM Juno Woods via Ground-Station
<ground-station at lists.openresearch.institute> wrote:

> Ruby syntax is so nice. The challenge with using it for
> science/engineering has always been the lack of a killer plotting app. I'd
> love to see Crystal change that, but I worked on this for years with Ruby
> (see: SciRuby) without much success. It would really require a large
> organization to throw its weight behind developing such a tool, IMHO.
>
> This same thing is an issue for other languages people have suggested as
> well. It's difficult to duplicate the plotting functionalities of Python
> and Matlab/Octave.
>
> I'm +1 for Python over Octave. Choice of language helps determine the
> engineering culture we draw from as well, and Python ties us a bit more to
> the larger software engineering community.
>
> Juno
>
> On Wed, Jan 20, 2021 at 12:53 PM Bruce Perens via Ground-Station
> <ground-station at lists.openresearch.institute> wrote:
>
>> While you are looking at advanced languages, here is a piece I wrote on
>> Crystal a while back. It's the logical successor to Ruby, which IMO was
>> advanced beyond Python. But there is a cost to being on the bleeding edge.
>>
>> https://perens.com/2020/06/28/building-a-startup-with-crystal-and-lucky/
>>
>> On Wed, Jan 20, 2021 at 12:39 PM Thomas Savarino via Ground-Station
>> <ground-station at lists.openresearch.institute> wrote:
>>
>>> I’d like to hear more about your Golang work and why you use that.
>>> S
>>>
>>> Sent from my iPhone
>>>
>>> On Jan 20, 2021, at 12:32 PM, Robert McGwier via Ground-Station
>>> <ground-station at lists.openresearch.institute> wrote:
>>>
>>> 
>>> I want to strongly support python for the work. I do simulations in
>>> Matlab and some architecture design work and then I use python and I'm
>>> moving into Golang for compiled code.
>>>
>>> Bob
>>>
>>>
>>> Dr. Robert W McGwier, Ph.D.
>>> Adjunct Faculty, Virginia Tech
>>> ARDC Member of Board
>>> ARS: N4HY
>>> ARRL, AMSAT, AAVSO, TAPR, SkyHub
>>>
>>> On Tue, Jan 19, 2021, 4:07 PM Michelle Thompson via Ground-Station
>>> <ground-station at lists.openresearch.institute> wrote:
>>>
>>>> Thank you Thomas and Alan for the valuable input.
>>>>
>>>> I have a soft spot in my heart for Octave and MATLAB, and am used to
>>>> having them be a significant part of technical work like this. If Python
>>>> can do the job, and it's the preferred expression for the work, then by all
>>>> means let's proceed.
>>>>
>>>> -Michelle W5NYV
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Jan 19, 2021 at 2:03 PM Alan Rich <arich127 at gmail.com> wrote:
>>>>
>>>>> Hi All ,
>>>>> My apologies for being really late / absent to respond to lots of the
>>>>> emails on this subject.
>>>>>
>>>>> I think I was the one that unfortunately dragged Octave into the
>>>>> discussion. The main reason was that I am not an experienced python person
>>>>> (yet) but I have contributed in the past  to some Matlab utilities for RF
>>>>> work that were converted to executables in the end. Matlab isn't open
>>>>> source, but Octave is, and it was one of the original open engineering
>>>>> tools. It's been around for 20 plus years and has good community support. I
>>>>> was thinking that a link budget and propagation "Toolbox" for Octave might
>>>>> be a nice thing to have for the community.
>>>>>
>>>>> Given that python, numpy, scipy.. have really become the open source
>>>>> baseline, I'm sure that this is absolutely the right way to go for a
>>>>> mission application/planning tool.  I apologize for the distraction.
>>>>> I'll experiment  a bit over in Matlab/Octave in the background to see
>>>>> if a set of .m files or functions can be built up to support future work.
>>>>>
>>>>> Link budgets , Bus power budgets (and antenna pointing requirements)
>>>>> are so important. Everything else ( throughput and BER/SER/PER) falls out
>>>>> of them.
>>>>>
>>>>> Cheers!
>>>>> Alan
>>>>>
>>>>>
>>>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.
>>>>> www.avg.com
>>>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>>>> <#m_1192230731075605571_m_5021025678534474979_m_-7217812766232080695_m_6488736157870010448_m_9189044632356751745_m_3502320734441759451_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>>>
>>>>> On Tue, Jan 19, 2021 at 3:56 PM Thomas Savarino <
>>>>> thomas.savarino at mac.com> wrote:
>>>>>
>>>>>> I understand that you don’t want any help with this, but I can’t
>>>>>> resist mentioning that you’d probably be better off doing everything in
>>>>>> python and avoiding the dependence on Octave, so you should really consider
>>>>>> what you need by way of calculation. Numpy probably has most if not all of
>>>>>> the functions you’ll need.
>>>>>> Best of luck
>>>>>> S
>>>>>>
>>>>>> Sent from my iPad
>>>>>>
>>>>>> On Jan 19, 2021, at 11:13 AM, Michelle Thompson via Ground-Station
>>>>>> <ground-station at lists.openresearch.institute> wrote:
>>>>>>
>>>>>> 
>>>>>> Thank you very much Salvatore,
>>>>>>
>>>>>> There is no Octave code base that I know of, but this is a very good
>>>>>> direction.
>>>>>>
>>>>>> -Michelle W5NYV
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sun, Jan 17, 2021 at 8:31 AM Salvatore Lionetti via Ground-Station
>>>>>> <ground-station at lists.openresearch.institute> wrote:
>>>>>>
>>>>>>> Hi guys,
>>>>>>>
>>>>>>> I'm sorry but I've started yesterday to work on this topic.
>>>>>>>
>>>>>>> I've made the spreadsheet available on my personal Nextcloud web
>>>>>>> instance:
>>>>>>>
>>>>>>> https://cumlaborare.strangled.net/s/Ng5H3RmmZP8HzNE
>>>>>>>
>>>>>>> By this way:
>>>>>>> * multiple people can collaborate on the same document, at the same
>>>>>>> moment.
>>>>>>> * comments are allowed,
>>>>>>> * versioning is in force.
>>>>>>>
>>>>>>> I've setup no password for now, but content can be recovered from a
>>>>>>> previous version very easily. (similar to Wikipedia)
>>>>>>>
>>>>>>> In the meanwhile I've verified that Jupyter can also use Octave
>>>>>>> interpreter, giving us the possibility to have a single code base.
>>>>>>>
>>>>>>> Is there a (also partial) Octave code base to reuse?
>>>>>>>
>>>>>>> Have a good day
>>>>>>>
>>>>>>
>>>>>
>>>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.
>>>>> www.avg.com
>>>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>>>> <#m_1192230731075605571_m_5021025678534474979_m_-7217812766232080695_m_6488736157870010448_m_9189044632356751745_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>>>
>>>>
>>
>> --
>> Bruce Perens - CEO at stealth startup. I'll tell you what it is
>> eventually :-)
>>
>
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