A software-defined HF sensor for geo-locating noise and interference

The Signal to Noise Enhancement Program (SNEP) has built a software-defined, combined noise monitoring and geo-positioning system. RF-Control includes a LABVIEW and MATLAB software controlled sensor, using generalized RF down-conversion and sampling. Based upon observed noise and interference levels, the sensor system directs synchronized sampling at three or more remote sensors. The system computes time correlation between the received noise energy, and it computes a hyperbolic time-difference-of-arrival geo-positioning solution for the noise source. RF-Control allows for remote control and reporting results via network connection.