Al-Qaraawy, Saleh M. 2009. “IPI Removing by Using Reference Sign N-Ary Orthogonal Coded Balanced TR-UWB Receiver for WPAN Based on Hadamard Matrix”. Nahrain University College of Engineering Journal 12 (2): 102-7. https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/566.