[Discuss-gnuradio] MAC implmentation with dbpsk

2012-04-12 Thread Josh Stevens
Hey , I am trying to configure a MAC layer implementation ( a customised packet structure ) abiding by the basics of benchmark files. ( The basic msg_source(packet input) --> modulator --> multiply_const --> sink) on the TX side and pretty much reverse on the receiver side . My question to you i

[Discuss-gnuradio] strange problem with packet sink

2012-04-14 Thread Josh Stevens
Hey all, The benchmark_rx.py file uses the generic_mod_demod.py and on the receiver side to be specific generic_demod whose input is gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signatureand the output signature is gr.io_signature(1, 1, gr.sizeof_char)) # Output signature . It

[Discuss-gnuradio] strange problem with packet sink

2012-04-15 Thread Josh Stevens
Hey all, The benchmark_rx.py file uses the generic_mod_demod.py and on the receiver side to be specific generic_demod whose input is gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signatureand the output signature is gr.io_signature(1, 1, gr.sizeof_char)) # Output signature . It

[Discuss-gnuradio] MAC layer support

2012-04-24 Thread Josh Stevens
Hey All, I have explored the basic functions that benchmark_tx and rx provide with modulation support (generic_mod_demod) , packet construction and recovery but what im trying to develop is a MAC layer implementation over a single carrier with the help of a customized packet structure (

[Discuss-gnuradio] File sink file size mismatch problem.

2012-05-30 Thread Josh Stevens
Hello All, A couple of days ago i had installed a GNURadio digital image processing block that makes an image source and sink block available as displayed in the image below. *Resource* : https://github.com/a-w-s/GNURadio-DIP *Flowgraph* : http://i.imgur.com/1lJzD.png The output of the im

Re: [Discuss-gnuradio] File sink file size mismatch problem.

2012-06-07 Thread Josh Stevens
wrote: > On Mon, Jun 4, 2012 at 11:12 AM, Josh Stevens > wrote: > > Tom, > > > > What i was also able to find was that when an image source (type = > > float) is connected to a file sink(type float) the size of the received > file > > is around 700 KB while

[Discuss-gnuradio] Cannot change transmit power

2012-09-14 Thread Josh Stevens
Hey All, I created a flow graph which would do the following dip_image_source_block (custom made digital image processing block which helps sending images over the air (neat OpenCV work)) | |--> throttle block -->packet_encoder-->gmsk_mod-->uhd_usrp_sink(tuned with the help of