Technical discussions about Freescale Microcontrollers: M68HC11. (Freescale Semiconductor is a Subsidiary of Motorola).
|
DEAR PALS .., I AM AN ENGINEERING STUDENT NOW I NEED TO DO MINI PROJECT ., IN DIGITAL COMMUNICATION PLEASE GIVE ANY RELATED TOPICS AND ALSO I WELCOME FOR GUIDING THROUGH MAIL.., MARRY X-MAS RAMESH KUMAR R . --------------------------------- |
|
|
|
In a message dated 12/3/04 5:59:02 A.M. Eastern Standard Time, writes: NOW I NEED TO DO MINI PROJECT ., IN DIGITAL COMMUNICATION PLEASE GIVE ANY RELATED TOPICS ================================================ Speech compression by Adaptive Differential Pulse Code Modulation [Non-text portions of this message have been removed] |
|
I highly suggest taking a look at Amateur Radio's Packet Radio Protocol. You can find
these manuals online (ebay) for about US$5.00. There seems to be a baud-rate barrier of
only about 12.5Kbps, although I have seen them as high as 56kbps, it would be nice if this
could be extended to at least 1Mbps. Yes, I realize that I am not properly exchanging data
rates and baud-rates, but you get the point. There is more to it than just plug in a 1Mbps
data tranceiver chip and let it go! There are bandwidth restrictions that must be abid by,
however, if you could simultaneously transmit on say 10 different channels, which is
"legal" in terms of the FCC, at 56Kbps, then you would theoretically move your
transfer rate up to 560Kbps. Furthermore, If you could multiplex, or compress the data,
then your effective data transfer rate could increase two-fold. This is just something
that I am considering for a long-range communications system for a project of mine (http://www.veryfinephotos.com/electronics/aerobot.htm). Sounds interesting, and if you e-mail me personally, then perhaps we can work together on this. Take care. LF RAMESH KUMAR <> wrote: DEAR PALS .., I AM AN ENGINEERING STUDENT NOW I NEED TO DO MINI PROJECT ., IN DIGITAL COMMUNICATION PLEASE GIVE ANY RELATED TOPICS AND ALSO I WELCOME FOR GUIDING THROUGH MAIL.., MARRY X-MAS RAMESH KUMAR R . --------------------------------- Yahoo! Groups SponsorADVERTISEMENT --------------------------------- Yahoo! Groups Links To --------------------------------- |