Development of an Autonomous Conveyor-Bolting Machine for the Underground Coal Mining Industry. - Jonathon C. Ralston; Chad O. Hargrave; David W. Hainsworth (FSR, 2003)

Application of signal processing technology for automatic underground coal mining machinery. - Jonathon C. Ralston; David W. Hainsworth; Ronald J. McPhee; David C. Reid; Chad O. Hargrave (ICASSP (2), 2003)

Radar Level Sensor for Longwall Creep and Retreat Measurement. - Chad O. Hargrave; NNicholas V. Z. Shuley; Jonathon C. Ralston; David W. Hainsworth (IAS, 2007)

Late-time resonance window estimation in radar. - Chad O. Hargrave; I. Vaughan L. Clarkson; Hoi-Shun Lui (ICSPCS, 2013)

Mine machine guidance using radar - Chad O. Hargrave (2014)