I am Engineering Manager Base Station Development. Work daily basis on baseband algorithm, RF integration and signal processing concepts.

Re: AD9601 with 200MSPS connected to DSP

Reply posted 2 years ago (05/17/2019)
Yes, Some FPGA or IGLOO (CPLD) you have to put.Max interface speed you may get with ST Microcontroller is with DCMI interface (80 MHz, 8bit) so thats what you connect.But...
Hi Rick,This exactly what @dgshaw6 suggested in a formal article. And yes it helped. Thanks a lot.By the way my name is Mukul and not Mukel
Hi @dgshaw6,Thanks for the detailed suggestion. It worked but I am still searching for something more simpler where I don't need to use even atan2 for finding out...
Hi @artmez,Thanks for the quick answer, I have edited my question but I am clarifying again here.It's a single frequency tone of lets say 50 or 100 Hz.By complex...
I have a complex sinusoidal signal (discrete samples as in-phase/real and quadrature phase/imag componenet) in DSP, whose frequency (single frequency) is in few...

Re: Automatic Frequency Correction AFC in DSP

Reply posted 3 years ago (10/13/2018)
Baseband signal is M-fsk or M-psk signal.I am not sure by coherent or non-coherent as I already discussed that I know carrier frequency but nothing else.

Automatic Frequency Correction AFC in DSP

New thread started 3 years ago
Hi,AFC is much discussed topic in this forum and I tried to search my question but couldn't find exact one so here it goes.I need to know ways and means find out...

Re: ARM CMSIS FFT - does it produce correct results?

Reply posted 3 years ago (09/10/2018)
Hi Mark,Does arm_rfft_f32 function work for you?Is it possible to get only +ve frequencies in output buffer with this function as FFT of a real signal will be mirror...

Re: RF switching matrix for DOA.

Reply posted 3 years ago (09/06/2018)
Can you please explain or provide link about how are you going to use this matrix for DoA? I might help you if I know the scheme.

Re: Off Topic: Binary Numbers

Reply posted 3 years ago (08/29/2018)
Indian MathematicianPingala (3rd Cent. BCE) is father of binary numbers (later by Leibniz in 1695), combinatorics, recursive algorithms
OK, I suggested that I knew filtering would solve it but then I mentioned that it would half the energy (SNR) and will require an extra step (filtering) after digital...
Hi Rick,Thanks for the great article.Hi Slartibartfast,I tried to mix my signal as per suggestion but here is what I got!I am getting what I want but only half...
My sampling rate are 8x complex symbol rate (1ksps) and can do more than that if required.My receiver is non-coherent (Tx and Rx LO are not synchronized and may...
OK, I assume you mean complex mixing in digital domain only because in current architecture it is not possible in analog domain.Do you have any white paper link...
1. Is there any other way to do this instead of complex digital mixer with LO at -1kHz, cause my processor may not handle this operation at for the sample rate...
hen people suggest to do hilbert transform for converting real samples to complex inside DSP, do they forget something to tell?I am experiencing some fundamental...

Re: Help on Demodulating an 8-PSK Signal

Reply posted 4 years ago (12/16/2017)
Hey Slartibartfast,I think M_313 (by seeing his attached figure) is modulating phase of a continuous carrier may be from DDS at defined symbol period.That's why...
Most of the signal I could see in 0to 1kHz only.If you remove that then only noise will remain. Do you really want to do that?

Re: OFDM sampling

Reply posted 4 years ago (05/13/2017)
Hey,Hang on. Let me explain something to you which you might not find directly in any of the text book until you do some hands on.Sampling rate in 'C' or Matlab...

Re: Source coding in WiFi or LTE

Reply posted 5 years ago (01/01/2017)
Hello rrlagic,These are channel coding scheme and not source coding.In source coding you compress data for bandwidth saving, whereas in channel coding you add redundant...

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