Hello Barry, Thank you so much for your reply. I will follow up on your suggestions.
On Wed, Apr 8, 2020 at 9:17 PM Barry Duggan <ba...@dcsmail.net> wrote: > Khalil, > > Here are some concepts you need to understand the capabilities of GNU > Radio: > - Complex Numbers, Negative Frequency > - Digital signal processing > - Frequency/Phase/Timing Offsets > - Sampling rates / sampling theorem > > 1) Study the https://wiki.gnuradio.org/index.php/SuggestedReading topics > on modulation and SDR. > > 2) If you have worked through the QPSK tutorial > https://wiki.gnuradio.org/index.php/Guided_Tutorial_PSK_Demodulation, > study each block in the flowgraph to determine what it does. > https://wiki.gnuradio.org/index.php/Category:Block_Docs has > documentation on every GR block. > > 3) If you have a specific / detailed question on an item, help can be > found in a number of places, such as: > - the search box in https://wiki.gnuradio.org/ > - search engines such as Google > - search the https://lists.gnu.org/archive/html/discuss-gnuradio > > Enjoy learning about SDR and GNU Radio! > -- > Barry Duggan KV4FV > > On Sat, 4 Apr 2020 23:07:34 +0200, Khalilur Rahman wrote: > > Hello Everyone, > > I hope everyone is doing well. I have a request to ask you guys. > I need to generate a baseband signal (I-Q) by using digital modulation > techniques like QPSK. I did generate the signal. However, I do not have > that much basic about how does it actually working. From source to sink > points. I follow-up on the tutorial but still do not get the real idea > behind it ( mapping points, amplitude, frequency, pulse shaping and > etc). > > So my request is to you how can I get these ideas behind it in prospect > to GNU Radio. I did read something from books on digital modulation but > I found myself a bit different ideas with GNU Radio. > > Would anyone like to share some documents on that with the related > environment with GNU Radio of course. Thank you in advance. > > Sincerely, > Khalil > > -- Sincerely, Md Atiqur Rahman Hochschule Bremen
