RapidRadio: A Domain-Specific Productivity Enhancing Framework

The RapidRadio framework for signal classification and receiver deployment is discussed. The framework is a productivity enhancing tool that reduces the required knowledge-base for implementing a receiver on an FPGA-based SDR platform. The ultimate objective of this framework is to identify unknown signals and to build FPGA-based receivers capable of receiving them. The architecture of the receiver deployed by the framework and its implementation are discussed. The framework's capacity to classify a signal and deploy a functional receiver is validated with over-the-air experiments

Automatic Modulation Classification for Rapid Radio Deployment

Abstract—Cognitive Radio and signal intelligence (SIGINT) applications require radios to perform situation-awareness functions, as spectrum sensing to detect the spectral occupation. In more advanced systems, for SIGINT and for interference cancellation purposes, a radio receiver may need to classify an otherwise unknown signal without prior information about its modulation type, and rapidly synthesize, prototype, and deploy a suitable demodulator. The Rapid Radio framework uses a signal analysis stage to obtain the parameters of the signal of interest, to quickly prototype a suitable radio demodulator using the reconfiguration features and processing capabilities of FPGAs. This paper presents the techniques devised to perform the Automatic Modulation Classification stage of the framework, considering its interaction with the parameter estimation and signal synchronization stages, and presents performance results obtained under simulation conditions as well as in over-the-air transmissions. I