Thanks, I will try this out. On Thu, Jul 16, 2009 at 11:34 AM, Colby Boyer <colby.bo...@gmail.com> wrote:
> In regards to 1. > > From what I have experienced, you can multiply the received signal by the > up sampled PN sequence and still get a good correlation. > > However I do not know if the sequence becomes less orthorgonal when you > this(worse auto-correlation). > > On Wed, Jul 15, 2009 at 9:27 AM, Mir M. Ali <mirmurt...@gmail.com> wrote: > >> Hi Johnathan, >> I have a few question regarding implementation. The book that you referred >> earlier was of great help. Thanks. >> I am sure this won't take a lot of your time and I would be really glad >> and thankful to you if you answer them. >> >> In the transmitter the data and the PN code is ex-or and then modulated >> and transmitted. So basically this is a BPSK transmission. At the receiver >> the received signal is first multiplied by the PN code in order to strip it >> free of PN code and this happens at the E/P/L correlation and Costas Loop >> block. Being a BPSK signal this is correct. >> >> 1. My question is can I just use the upsampler and multiply the upsampled >> sequence with the received signal samples? >> 2. Where will the AGC and the RRC filter go in this arrangement? >> >> Any help would be appreciated. >> Thanks. >> Ali >> >> >> >> On Tue, Feb 24, 2009 at 11:23 AM, Johnathan Corgan < >> jcor...@corganenterprises.com> wrote: >> >>> On Mon, Feb 23, 2009 at 8:25 PM, Mir Ali <mirmurt...@gmail.com> wrote: >>> >>> > can you suggest me a place where I can find more information about the >>> phase >>> > sync and the freq sync methods you used in your work. It will be of >>> great >>> > help to me. >>> >>> There is plenty of information available via Google. An excellent >>> reference book is: >>> >>> "Fundamentals of Global Positioning System Receivers: A Software >>> Approach" >>> Wiley Series in Microwave and Optical Engineering >>> James Bao-Yen Tsui, 2004 >>> >>> Johnathan >>> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >
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