Power Spectra of Computer Simulated Frequency Modulation with Digital Minimum Shift Keying and Voice Input.
Final rept. Feb 72-Mar 73,
OFFICE OF TELECOMMUNICATIONS BOULDER COLO INST FOR TELECOMMUNICATION SCIENCES
Pagination or Media Count:
A FORTRAN computer program, FMSPECT, which obtains the power spectrum of an FM signal, modulated by a voice signal, a digital signal, and combinations of both is presented. The theory behind the simulation of the voice signal 265-5575 Hz is described, as well as the theory of simulating an MSK digital signal 2400 bits-per-second. The digital signal is multiplexed onto the voice at 7200 Hz for combined transmission. Sample spectra are shown for various modulation conditions, and the results are presented in the form of graphs and tables. A listing of the program is given in the appendix. Author
- Voice Communications