SOFTWARE DEFINED RADIO

摘要

A software defined radio is disclosed. The software defined radio may utilize a method for encoding a bit stream into non-periodic spiral-based symbol waveforms for transmission and reception. The method includes transmitting a signal constructed from one or more non-periodic modulation sets residing on a memory system of the software defined radio, where each modulation set corresponds to a symbol alphabet and provides non-periodic symbol waveforms corresponding to symbol bit sequences segmented by a microprocessor according to alphabet size. The method also includes receiving the signal constructed from one or more spiral modulation sets, wherein the signal from one or more spiral modulation sets are filtered and then fed to an analog to digital converter, where the signal constructed from the one or more spiral modulation sets is digitized and are fed to the microprocessor. A non-transitory computer storage media may also execute the method.

主权项

1. A software defined radio designed for non-periodic signals, comprising:
a memory system storing a plurality of modulation sets; a microprocessor in communication with the memory system via a bus, the microprocessor includes a non-transitory storage media where one or more radio functions are implemented and a transmitter to generate a bit stream, the microprocessor segments the bit stream received from the non-periodic modulation sets stored on the memory system according to modulation alphabet size; a digital to analog converter in communication with the microprocessor via the bus, the digital to analog converter receives a plurality of spiral based modulations from the microprocessor, after a bandwidth limiting filter is applied, and the digital to analog converter feeds into a radio frequency stage; a power amplifier in communication with the digital to analog converter via the bus, the power amplifier boosting the radio frequency stage signal; an antenna receiving the boosted radio frequency stage, the antenna is driven by the boosted radio frequency stage by the bandwidth limiting filter; and an analog to digital converter in communication with the power amplifier via the bus, the analog to digital converter provides signal reception, digitizes the boosted radio frequency stage from the antenna and feeds the digitized analog signal back to the microprocessor.