[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Discuss-gnuradio] demodulate a CPFSK modulated file - how to

From: Arturo Rinaldi
Subject: [Discuss-gnuradio] demodulate a CPFSK modulated file - how to
Date: Fri, 11 Dec 2009 16:20:15 +0100
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; it; rv: Gecko/20091204 Thunderbird/3.0

i'm trying to demodulate a cpfsk modulation implemented through the block

gr.cpfsk_bc( )

my scheme is :

bytes_source (a byte vector_source with one byte of stuffing inserted as first element of the vector)
gr.packed_to_unpacked_bb(1,  gr.GR_MSB_FIRST )
file_sink (complex type)

then after different un-succeeded attempts to demodulate the modulated file through the quadrature demodulator and converting the float output to byte i was wondering a different approach to demodulate the file by using the block

gr.constellation_decoder_bc( )

and then removing the stuffing byte to obtain the original file. My question so is which are , if possible,  the parameters to pass to the constellation decoder in order to demodulate the CPFSK.

thx in advance


reply via email to

[Prev in Thread] Current Thread [Next in Thread]