DTMFGUIFFTGeortzelThis paper gives the principle of generation of DTMF signal based on the standard of ITU Q.23. Using the GUI interface method of matlab. we implement the simulation of signal generation. Then with the help of FFT algorithm and Geortzel algorithm, we complete the reception ...
The generator will transmit DTMF signal with a 3 dB twist, and with -6dBm for the high tone and -9dBm for low (2nd option). Parasitic signals must be 20 dB less energetic than the low-tone. Furthermore, noise must fall within limits in relation to where it lies in the band. In ...