Development and field test of a laser-based nonintrusive detection system for identification of vehicles on the highway. - Harry H. Cheng; Benjamin D. Shaw; Joe Palen; Bin Lin; Bo Chen; Zhaoqing Wang (IEEE Trans. Intell. Transp. Syst., 2005)

Noise rejection using variable-height timing-window technique for pulse signals with variable S/N ratio. - Zhaoqing Wang; Bo Chen; Harry H. Cheng; Benjamin D. Shaw; Joe Palen; Ping Feng (IEEE Trans. Instrum. Meas., 2006)