- Видео 221
- Просмотров 262 861
Marcelo Perotoni
Добавлен 1 окт 2011
RTL SDR with Python - watefall frequency plot
How to visualize a waterfall plot in Python, using RTL SDR.
Просмотров: 1 149
Видео
RTL SDR with Python -- time domain visualization
Просмотров 1 тыс.Год назад
How to visualize time-domain samples acquired from the RTL SDR, using Python.
RTL SDR with Python
Просмотров 3,8 тыс.Год назад
How-to get the data from RTL using Python. Library: pypi.org/project/pyrtlsdr/
CPW port in CST Microwave Studio
Просмотров 7 тыс.2 года назад
How to add CPW structure in CST, using multipin ports.
Gnu Radio Curso Aula 04 - Parte Pratica
Просмотров 3033 года назад
Gnu Radio Curso Aula 04 - Parte Pratica
Gnu Radio Curso Aula 03 - Parte Pratica
Просмотров 4033 года назад
Gnu Radio Curso Aula 03 - Parte Pratica
Gnu Radio Curso Aula 02 Parte Pratica
Просмотров 4093 года назад
Gnu Radio Curso Aula 02 Parte Pratica
Gnu Radio Curso - Aula 01 Parte Pratica
Просмотров 8273 года назад
Gnu Radio Curso - Aula 01 Parte Pratica
Simulation of Rectenna/RFID inside CST Microwave Studio
Просмотров 2,4 тыс.3 года назад
Simulation of Rectenna/RFID inside CST Microwave Studio
Amplificador BJT Simulacao Multisim
Просмотров 1,1 тыс.4 года назад
Amplificador BJT Simulacao Multisim
There was 10 years that I had this idea but never try to implement it. It can be really useful specially with high band sdr hardware. Thanks
Also from where you are ?
@@franciscoferreira-eh1yu Thanks for your comment, Im from Brazil.
@@marceloperotoni2504 Bem que desconfiei... Diga-me uma coisa: Um sinal, tipo uma senoide ou onda quadrada "pura" fica mais "apresentavel" quando da um zoom na visualização ? abraços!
@@franciscoferreira-eh1yu sim, quem restringe a representacao das ondas em banda base sera o sample rate do SDR. O RTL tem 2 MHz, entao dá 0.5 us de periodo. Passando disso temos distorcoes tipo aliasing.
@@marceloperotoni2504 Fui procurar teu nome no google. Tu é pica. Esse teu material aqui no YT eram usados nas aulas ? Me tornei inscrito. Abraços.
Thank you so much
😀
so much thanks. it was getting heard trying to figure out the width and length of a coupler MSline.
Caramba, muito bom!!!
Obrigado @canaltiago.
hi i want to ask can i detect wifi signal in form of numbers (e.g., 2.427 GHz, 2.457 GHz) using python script with bladerf sdr? if yes than please provide resources on this
I never used Blade RF. Maybe you can look at <github.com/Nuand/bladeRF>. Blade RF is way fancier than RTL, so there are not so many resources around. Another way to do it is by using GNU Radio Companion (which is easy), and exporting the program as a Python code (it runs on Linux, and Win creates a lot of trouble). Good luck
@marceloperotoni2504 thanks for reply, yeah there are less resources for bladerf. And for transmit purpose(tx) i used gnu radio companion but for receiving purpose (rx) i need exact value of frequency so is there any method to do that using gnu radio companion?
@@joshiharsh5846 If I understood correctly, create a variable freq=2.427 for instance, and associate it to the rx and tx blocks inside GNU Radio. Better yet, give it a small offset (let's say 100 KHz) on the RX so that it does not fall within the zero-IF leakage.
Is it possible to do realtime processing and sending to an audio sink? A lot of people i see using pyrtlsdr wrapper lose samples.
@WeirdscienceTV Indeed. Modern usb ports throughput is not an issue w/ RTL (can be with USRP's though), so it's likely Python is taking too long in the processing loop. Samples must be acquired and immediately stored (I like these numpy files - csv takes longer).
Very helpful explanation - thanks! Could you also provide the Python code?
Excelente aula, muito obrigado Prof. Marcelo
Excelente aula, muito obrigado Prof. Marcelo
Ótimo vídeo!
Muito Bacana !
Excelente aula, muito obrigado Prof. Marcelo.
Thank you for posting this, this video got me started on FEKO and went on to publish few conference papers as a result. Very grateful!
Thanks Ali, wish you the best!
Excelente tutorial, obrigado!!!
Can you please make a tutorial using CST
Sir can you please share the design equation for each and every dimensions for pifa antenna
hi, can you share feko files ?
Can I have the feko file please
Boa tarde, professor. Será que o senhor consegue me dar umas dicas de um projeto que tenho que fazer no GNU? Assisti suas aulas mas ainda estou um pouco perdido.
ola Fernando, meu email eh mperoconsult@gmail.com, se quiser explicar brevemente do que se trata posso tentar ajudar. abcs
Hi, I have a problem in using QUCS, If I change impedance, S11(dB) is not change if I compilate the program. I don't know why? I need help please.
send me an email I might take a look into it Naima.
@@marceloperotoni2504 of cousce thank you. Give me your email to send you the work
@@naimadihaji2255 mperoconsult@gmail.com
Ótima explicação! Gostei!
Muito bom! Obrigado por compartilhar.
Porra que classe. Sou seu fan!
🥰
👏👏👏👏👏👏
Professor, uma pergunta. Gostaria muito de fazer uma pós em rectenna, acho que esse é o futuro da geração de energia elétrica. Você tem pesquisa nessa área? Caso não conhece algum grupo no Brasil com esse foco. Muito obrigado. Vídeos muito bons, gratidão por postar esses conteúdos.
Olá Flavio, obrigado pelo contato. Há vários locais no Brasil com pesquisas nessa área. Se quiser trocar uma ideia fique a vontade no meu email mperoconsult@gmai.com.
I need 5element pifa element design
Excelente série de vídeos!!
Obrigado Hamilton.
Thanks for the helpful video I want to ask you how to import antenna from CST to feko and by using waveguide port on antenna like CST
Dear Post Box importing from CST to FEKO I advise using SAT (ACIS) file. Port information is not transferred during import/export, you got to do it manually.
@@marceloperotoni2504 but I have problem with the port bcz when I imported antenna in feko , the ground and the patch are rectangular 3D (Cuboid) instead 2D rectangle , can you please help me how to create port in this case in feko and can I use waveguide port in feko with antenna?
Dear @@sciencelearning2326 FEKO ports are different than those from CST, take a look at some of my videos showing how to create them. In case these objects are 3D it won't matter that much for MoM's FEKO, only the external part will be meshed. By touching the port structure into the 3D parts contacts are ensured, besides the fact FEKO requires the user to manually ADD all objects who are in contact with one another. It will work don't worry.
@@marceloperotoni2504 to create the port will I use 2D rectangle or Cuboid 3D to contact with patch and ground
@@sciencelearning2326 2D rectangle, there's a procedure where you split the 2D rectangle and assign it to an Edge Port. Here (ruclips.net/video/GCldwPz2qRk/видео.html )there's the how to...
Boa noite professor Gostaria, se possível, suas referências bibliográficas sobre o conteúdo (DSP)
Kleibe, sao variasreferencias sites livros artigos, bastante coisa.
How to add the equation in QUCS
How to do contour shift of cuboid it is not working
how did u find the length of the microstrip board? ( I meant the l = alpha/4)
Sir, Can I have a link for the feko software?
www.altair.com/feko/
thank you!
excelent Thank you please load more ...
Agradeço sempre pelo conhecimento compartilhado. Grande professor!
Why in monostatic RCS at an angle of 0 degrees >3000 m ^ 2
sir this is urgent i need clarity here how can we change the values of size if we want to do the same using rectangular patch antenna with same insert feed? please reply fast
Naveen the length sizes do not change that much due to the feeding. You can keep the same patch size for both feeding methods.
Muito bom! Obrigado!!
Можно ли побольше уроков по RCS объектов :)
Caro professor, não sei se conhece mas existe um pequeno equipamento chamado NanoVna (Medidas em S11 e S21) com uma interessante relação custo/benefício(U$30 - 50) para o aprendizado. Cobre de 50KHz a 900MHz com outra versão indo um pouco além de 3GHz.
Ola Kleibe, ele esta na minha lista...
@@marceloperotoni2504 ;-)
Dear Marcelo , Can you post a video on how to design pifa (planar inverted F antenna )
backward wave coupler make a simulation sir
Boa tarde Sr. Perotoni, teria algum material para estudo do software CST?
Depende. entre em contato comigo via email q vejo se posso ajudar. abcs
sir if u dont mine can u please upload the simulation of wideband monopole square microstrip patch antenna using cadfeko
Please do in English,,,, so u can help whole world....however ur English is... Please
Micro-ondas é muito legal...
This assumes a square patch as well as the size depending on epsilon relative not epsilon effective which is what L_effective or "size" depends on. Still a great video that shows how to place corners.
Parabéns por suprir uma lacuna acentuada sobre o assunto em português. Excelente abordagem inicial, para mim, do QUCS.
Obrigado Kleibe!
@@marceloperotoni2504 Professor, grato pela resposta. Vou abusar da boa vontade e perguntar se poderia exemplificar seus vídeos com mais tutorias usando o QUCS bem como, talvez, disponibilizar os arquivos gerados. Estou acompanhando seus vídeos com muito interesse e mais uma vez, grato por publicar valioso material. Saudações.
@@kleibe Ok vou pensar a respeito. Abraco!
Please I need the English version of this video. I don’t understand your language
@@emmanuelapuamadi9591 You can activate the subtitles and translator. Maybe the author of the video can do a subtitle for it.
Conhecidencia né meu sobrenome kkkksksksk