Systems and methods for performing demodulation and modulation on software defined radios

摘要

A system and method are provided for extracting and demodulating one or more channels in a radio signal. The method includes receiving a first radio signal using a radio frequency front end, translating a first band of frequencies of the first radio signal to a second band of frequencies to generate a second radio signal, digitizing the second radio signal to generate a digital signal, extracting one or more additional band of frequencies of the digital signal, each additional band of frequencies corresponding to a channel, and demodulating one or more channels to generate a respective demodulated signal. In another aspect, a system and method are provided for modulating and combining one or more channels into a radio signal.

主权项

1. A method of extracting and demodulating one or more channels in a radio signal, the method comprising:
receiving a first radio signal using a radio frequency front end; translating a first band of frequencies of the first radio signal to a second band of frequencies to generate a second radio signal; digitizing the second radio signal to generate a digital signal; translating a third band of frequencies of the digital signal to a fourth band of frequencies to generate a processed digital signal and to reduce an error from translating the first band of frequencies of the first radio signal to the second band of frequencies; extracting one or more additional band of frequencies of the digital signal, each additional band of frequencies corresponding to a channel; and demodulating one or more of the channels to generate a respective demodulated signal.