You can add three sine waves and send them using a single carrier. However, in this approach, the separation of the sine wave frequency components will be limited by the sampling rate.
Let's assume that you can obtain a 20 MS/s sampling rate in your system. You can cover 10 MHz frequency band with this sampling rate. If you use a carrier frequency of 902 MHz, you can send different sine waves up to 912 MHz frequency in this approach. Thanks, Nazmul On Thu, Aug 2, 2012 at 4:51 PM, pengyu zhang <zhange...@gmail.com> wrote: > Hi, > > I know that USRP can send out carrier wave at one frequency. For example, > a carrier wave at frequency 902MHz. The carrier wave sent is > sin(2*pi*902MHz*t). Can we send a carrier wave at three frequencies? For > example, a carrier wave at frequency 902MHz, 915MHz, and 928MHz. The > carrier wave I want to send > is sin(2*pi*902MHz*t)+sin(2*pi*915MHz*t)+sin(2*pi*928MHz*t). Is multi-tone > carrier wave feasible given USRP's hardware? How could I implement this on > USRP? Thanks. > > Pengyu > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- Muhammad Nazmul Islam Graduate Student Electrical & Computer Engineering Wireless Information & Networking Laboratory Rutgers, USA.
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