Ok.
The block diagram in most of the textbook says the modulated signal is
multiplied with the PN sequence.
1. If I decide to do the same then my setup will look like this
byte - bytes_to_chunks - chunks_to_symbols(BPSK) - rrc_filter(X
samples per bit) - DSSS
I am confused about the DSSS
On Wed, 2010-04-28 at 11:23 -0700, Johnathan Corgan wrote:
On Tue, Apr 27, 2010 at 21:19, John Andrews gnu.f...@gmail.com wrote:
If I want to transmit a signal which is DSSS spread using BPSK. Is it
correct for me to first digitally spread the incoming data bits and then
apply BPSK before
On Tue, Apr 27, 2010 at 21:19, John Andrews gnu.f...@gmail.com wrote:
If I want to transmit a signal which is DSSS spread using BPSK. Is it
correct for me to first digitally spread the incoming data bits and then
apply BPSK before sending it to the USRP or should I first convert the
signal to
Hi,
If I want to transmit a signal which is DSSS spread using BPSK. Is it
correct for me to first digitally spread the incoming data bits and then
apply BPSK before sending it to the USRP or should I first convert the
signal to BPSK and then multiply the output of the BPSK modulator with the
PN
this would be similar to 802.11b's PHY at 1Mbps, except it uses the barker
sequence as opposed to the sequence you mention. It spreads a BPSK signal
using the barker sequence.
You can take a look at the BBN 802.11b code in CGRAN to see how they
implement this:
