@inproceedings{Nagaraju10HFNC, Author = {P. B. Nagaraju and E. Koski and T. Melodia}, Title = "{A Software-defined Ionospheric Chirpsounder for HF Propagation Analysis}", booktitle = {Proc. of HF Nordic Conference}, address = "Faro, Sweden", Pages = {}, month = "August", Year = {2010}}