Help in identifying modulation technique

[Shruti01]

I am a post graduate students and I have been given an project related to software defined radio (SDR) which is as follows:

1. Choose a modulation scheme - analog modulation schemes such as AM, FM, PM, digital modulation schemes such as FSK, ASK, PSK, M-ary FSK, M-ary ASK and M-ary PSK
2. Generate 1000 samples of any one of these schemes
3. Add noise to these samples
4. Pass these noise corrupted samples to modulation recognition algorithm and identify the modulation scheme used.

I completed steps 1, 2 and 3 successfully but for the 4th step, I need an modulation recognition algorithm.I want to do feature extraction. Suggest me any ideas to design my own modulation classification algorithm which will identify the modulation technique based on the features extracted.

 

[DaveNF2G]

You are post-grad and you're asking a bunch of random, anonymous hobbyists how to write an algorithm? [shudder]

 

[KA1RBI]

[shudder]

hmm..... strange:
http://forums.radioreference.com/so...9-research-topics-digital-communications.html
http://forums.radioreference.com/so...r-spectral-density-psd-binary-ask-matlab.html
http://forums.radioreference.com/so...33831-how-determine-bit-rate-symbol-rate.html
http://forums.radioreference.com/so...ers-used-modulation-techniques-detection.html
http://forums.radioreference.com/software-defined-radio/222468-help-modulation-detection-sdr.html
http://forums.radioreference.com/software-defined-radio/219466-urgent-help-required.html

shruti01, where are you completing your course of study, could you kindly post a link to the course and/or instructor's web site ?

Best regards

Max

 

[MattSR]

Good grief, We have given you more pointers than you can poke a stick at...

 

[majoco]

I think you should get out more - try mixing with the real world.

 

[SCPD]

You are post-grad and you're asking a bunch of random, anonymous hobbyists how to write an algorithm? [shudder]

I don't know about you Dave but I'm a master spy working for Mossad.

I just surf on here 'cuz I have nothing better to do -- at least not for a few weeks.

 

[SCPD]

This might help

http://ali.mansour.free.fr/PDF/SPPRA02.pdf

http://www.lea.ufpa.br/lilian/cogni...l_Algorithm_for_Modulation_Classification.pdf

 

[goldcat]

you can use Hoka Code 300-32 software , enter your signals and then choose signal pattern recognition.
Once you've completed your project I would be interested in having a copy of it.
Good Luck