Dr. Chi-Hao Cheng is a professor in the Department of Electrical and Computer Engineering.

He teaches courses in electrical engineering, directs undergraduate student projects, and supervises graduate student theses. He developed undergraduate/graduate courses in digital signal processing, digital image processing, real-time digital signal processing, and advanced digital signal processing.

Dr. Cheng’s primary research interests lie in signal processing algorithm development and its applications in different areas including wideband receiver and optical communications systems. Since joining Miami he has authored or co-authored more than 30 peer-reviewed journal and conference articles and co-authored the third edition of Digital Techniques for Wideband Receivers with Dr. James Tsui.

He has received external grants and support from the Air Force Research Laboratory, Dayton Area Graduate Studies Institute, National Science Foundation, Office of Naval Research, Mathworks, Texas Instruments, and Xilinx.

Prior to joining the faculty of Miami University in 2004, Dr. Cheng spent 5 years working in the optical communications industry and developed cutting edge optical communication devices including chromatic dispersion compensator, wavelength interleaver, and dynamic gain equalizer.

His industry work led to three issued U.S. patents and four pending U.S. patents.

Dr. Cheng received his B.S. degree in control engineering from National Chiao Tung University, Hsinchu, Taiwan, in 1991, and M.S. and Ph.D. degrees from the University of Texas at Austin in 1996 and 1998, respectively, both in electrical and computer engineering.

• Professor, Miami University, 2015 –Present
• Associate Professor, Miami University 2010 –2015
• Assistant Professor, Miami University 2004 –2010
• Senior Research Engineer, Defiant Photonics, Plano, TX 
• Research Engineer, Senior Research Engineer, Chorum Technologies, Richardson, TX
• Postdoctoral Research Associate, Department of Electrical and Computer Engineering, UT at Austin

• Gan Zhou; Kuang-Yi Wu, and Chi-Hao Cheng, “Adjustable Chromatic Dispersion Compensation,” US Patent 6,559,992, May 6, 2003.
• Tiejun Xia; Chi-Hao Cheng; ShuXin Li; Jian-Yu Liu; and Kuang-Yi Wu, “Bandwidth Variable Wavelength Router and Method of Operation,” US Patent 6,515,786, February 4, 2003.
• Chi-Hao Cheng, Jian-Yu Liu, Kuang-Yi Wu, and Charles Wong, “Dispersion Compensation for Optical Systems,” US Patent 6,396,609, May 28, 2002.

Journals

• Chi-Hao Cheng, Lihyeh L. Liou, James. B. Tsui and David M. Lin, “Chirp Signal Detection Using FFT Peak Frequency Difference,” IEEE Transactions on Aerospace and Electronic Systems, vol. 52, no. 3, pp. 1449-1453, Jun. 2016.
• Vincent Mancuso, Peter Buxa, Chi-Hao Cheng, David Lin, Lihyeh Liou, Matt Longbrake, and Thomas Pemberton, “A Real-Time Imbalance Compensator for Wideband Receiver Applications,” IET Radar, Sonar & Navigation, IET Radar, Sonar & Navigation, vol. 9, no. 7, pp. 743 –750, Aug. 2015.
• Chi-Hao Cheng, “Wideband Receiver with I/Q Channels for Multiple Nyquist Zone Coverage,” IET Radar, Sonar & Navigation, vol. 9, no. 4, pp. 421-428, Apr. 2015.
• Chi-Hao Cheng, “Wideband Receiver Design Using Frequency- Dependent Magnitude/Phase Mismatch,” IEICE Electronics Express, vol. 11, no. 15, Aug. 10, 2014.
• Chi-Hao Cheng, L. Liou, David Lin, James Tsui, Heng-Ming Tai, “Wideband I/Q Imbalance Compensation Using FIR Filter,” accepted by IET Radar, Sonar & Navigation, August 2014.
• Xiaoqi Han and Chi-Hao Cheng, “Nonlinear Filter Based Decision Feedback Equalizer for Optical Communication Systems,” Optics Express, vol. 22, no. 7, pp. 8712-8719, Apr. 7, 2014.
• Chi-Hao Cheng and Shasha Tang, “Michelson interferometer based interleaver design using classic IIR filter decomposition,” Optics Express vol. 21, no. 25, pp. 31330-31335, Dec. 16, 2013.
• Chi-Hao Cheng, David M. Lin, Lihyeh L. Liou, and James B. Tsui, “Electronic warfare receiver with multiple FFT Frame Sizes,” IEEE Transactions on Aerospace and Electronic Systems, vol.48, no.4, pp.3318-3330, Oct. 2012.
• Jie Pan and Chi-Hao Cheng, “Nonlinear Electrical Predistortion and Equalization for the Coherent Optical Communication System,” IEEE/OSA Journal of Lightwave Technology, vol.29, no.18, pp. 2785-2789, Sep.15, 2011.
• Jie Pan and Chi-Hao Cheng, “Wiener-Hammerstein Model Based Electrical Equalizer for Optical Communication Systems,” IEEE/OSA Journal of Lightwave Technology, vol.29, no.16, pp.2454-2459, Aug.15, 2011.
• Jie Pan and Chi-Hao Cheng, “Nonlinear Electrical Compensation for the Coherent Optical OFDM System,” IEEE/OSA Journal of Lightwave Technology, vol. 29, no. 2, pp.  215-221, Jan.15, 2011.
• Chi-Hao Cheng and Shuping Wang, "Performance Comparison of Michaelson Interferometer Based Interleaver Designs," Optiocal ENgineering, Paper Number 125003, Volume 48, Issue 12, December 2009.
• Chi-Hao Chang and Shuping Wang, "Imperfect antireflecteion coating effect reduction schemes for birefringent interleaver and optical communication systems," Optics & Laser Technology, Volume 40, Issue 8, pp. 1072-1077, November 2008.
• Shuping Wang, Chi-Hao Cheng, Yangqing Lu, and Charles Wong,Dynamic channel blocker/equalizer with high blocking extinction ratio,Optical Engineering, Paper Number 025003, Volume 47, Issue 2, February 2008.
• Shuping Wang,  Chi-Hao Cheng, Yangqing Lu, and Charles Wong, “The imperfect antireflection coating effect on birefringent interleaver and optical communication systems,” Optical Engineering, Paper Number 095005 Volume 46, Issue 9, September 2007.
• Chi-Hao Cheng,” Signal processing for optical communication,” IEEE Signal Processing Magazine, Volume 23, Issue 1, pp.  88-96, Jan. 2006.
• Chi-Hao Cheng, "Assymetrical Interleaver Structure Based on the Modified Michaelson Interferometer," Optical Engineering, Paper Number 115003, Volume 44, Issue 11, November 2005.
• Chi-Hao Cheng and Tiejun J. Xia, "A Novel Bandwidth and Center Wavelength Tunable Interleaver," Optical Engineering, Paper Number 085002, Volume 44, Issue 8, August 2005.
• Chi-Hao Cheng and J.-C. Chaio. "Dynamic Chomatic Dispersion Compensators-Introduction," OPTO News and Letters, No. 104, October 2003 (in Chinese).
• Chi-Hao Cheng and Edward J. Powers, "Optimal Volterra Kernel Estimation Algroithims for a Nonlinear Communication System for PSK and QAM Inputs," IEEE TRansactions on Signal Processing, Volume 49, Number 1, pp.147-163, January, 2001.

Conferences

• Patrick Cutno, Chi-Hao Cheng, Zhiqiang Wu, Bin Wang, and Deng Cao, “Software Defined Radio for Digital Signal Processing Related Courses,” 2016 ASEE Conference, Jun. 2016, New Orleans, USA.
• Zhiqiang Wu, Bin Wang, Chi-Hao Cheng, Deng Cao, and Ashraf Yaseen, “Software Defined Radio Laboratory Platform for Enhancing Undergraduate Communication and Networking Curricula,” 2016 ASEE Conference, Jun. 2016, New Orleans, USA.
• Deng Cao, Zhiqiang Wu, Bin Wang, and Chi-Hao Cheng, “Software Defined Radio Based Laboratories in Undergraduate Computer Networking Courses,” 2016 ASEE Conference, Jun. 2016, New Orleans, USA
• Chi-Hao Cheng, Jie Pan, and Xiaoqi Han, “Nonlinear Distortion Compensation for Optical Communications,” (invited paper) 2014 Asia Communications and Photonics Conference (ACP), Nov. 2014, Shanghai China.
• Zhiqiang Wu, Bin Wang, Chi-Hao Cheng, Deng Cao, and Ashraf Yaseen, “Software Defined Radio Laboratory Platform for Enhancing Undergraduate Communication and Networking Curricula,” 2014 ASEE Annual Conference, Jun. 2014, Indianapolis, USA.
• Jie Pan and Chi-Hao Cheng, “Sparse Volterra Model Based Coherent Optical-OFDM Channel Modeling and Compensation,” the 16th OptoElectronics and Communications Conference (OECC 2011)
• Robert Graessle and Chi-Hao Cheng “A Software-Defined Radio Based on the Unified SMSE Framework” the 10th Wireless Telecommunications Symposium (WTS-2011).
• Chi-Hao Cheng and Shuping Wang, “Broadband Source Sliced by Cascaded Interleavers,” the 14th OptoElectronics and Communications Conference (OECC 2009).
• Shuping Wang, Chi-Hao Cheng, and Joe Yue, “Passive Wavelength Monitor Based on Birefringent Crystals,” the 14th OptoElectronics and Communications Conference (OECC 2009).
• Shuping Wang, Chi-Hao Cheng, Yangqing Lu, “Liquid crystal-based dynamic channel blocker/equalizer for optical networks,” SPIE Symposium on Optical Engineering + Applications, August 2008.
• Chi-Hao Cheng, “A Reconsideration of the Birefringent Interleaver,” The Proc. of SPIE Photonics West, January, 2007.
• Chi-Hao Cheng and David J. Goode, “Michelson Interferometer Based Interleaver Design Algorithm Based on IIR Filter Model,” The Proc. of SPIE Optics East, October, 2006.
• Chi-Hao Cheng, “Signal Processing for Optical Wavelength Interleaver Design,” The Proc. of Asia-Pacific Optical Communications Conference and Exhibition, November 2005 (APOC 2005).
• Chi-Hao Cheng, “The Signal Processing Approach for the Birefringent Material Based Mach-Zehnder Interferometer Design,” The Proc. of IEEE International Midwest Symposium on Circuits and Systems, August 2005 (MWSCAS 2005).
• Chi-Hao Cheng, “IIR Filter Model for the Generalized Michelson Interferometer,” The Proc. of IEEE 2005 Summer Topicals, June 2005.
• Mufit Ozden and Chi-Hao Cheng, “Optimizers with Learning Distributions in Simulation Models: An Application to All-pass Dispersion Compensator of Fiber Optics,” The Proc. of the Industrial Simulation Conference, June 2005.
• Chongyang Chen, David Z. Chen, Daniel L. Peterson, Jr., Chi-Hao Cheng, Sihan Lin, Hui Fang, Tiejun Xia, Kuangyi Wu, and Gan Zhou, “ A Newly Developed Dispersion Compensation Module for ULH/Metro Applications,“ The Proc. of the Second IASTED International Conference on Communications, Internet, and Information Technology, November 2003.
• Chi-Hao Cheng, Tizhi Huang, and Tiejun J. Xia, “Low Cost Approach to Increase Capacity of Existing Network,” The Proc. of NFOEC, September 2003
• Jung-Chih Chiao, Xiang-Jun Zhao, Chi-Hao Cheng, T. J. Xia, and Tizhi Huang, “Network Performance of Dynamic WDM Power Equalizers,” The Proc. of NFOEC, September 2002.
• Chi-Hao Cheng, Leo Lin, Terry Towe, T. J. Xia, Charles Wong, Kuangyi Wu, and Jung-Chih Chiao, “Spectral Slicers without Cascaded Dispersion Penalty,” The Proc. of the 28th European Conference on Optical Communication (ECOC), September 2002.
• Chi-Hao Cheng, Leo Lin, Terry Towe, T. J. Xia, Charles Wong, Kuangyi Wu, and Jung-Chih Chiao, “Network performance for Cascaded Dispersion-Free Slicers,” The Proc. of ITCOM, July 2002.
• Jung-Chih Chiao, Chi-Hao Cheng, Xiang-Jun Zhao and Tizhi Huang, “Performance of Liquid-Crystal Dynamic Optical Gain Flatteners,” The Proc. of 2002 SPIE Opto Canada Conference, May 2002.
• Chi-Hao Cheng and Edward J. Powers, “A Reconsideration of the Pth-order Inverse Predistorter,” The Proc. of the 49th Annual IEEE Vehicular Technology Conference, May 1999.
• Chi-Hao Cheng and Edward J. Powers, “Intermodulation Distortion Estimation with Fifth-Order Volterra System,” The Proc. of the International Conference on Signal and Image Processing, October 1998.
• Chi-Hao Cheng and Edward J. Powers, “Fifth-Order Volterra Kernel Estimation for a Nonlinear Communication Channel with PSK and QAM inputs,” The Proc. of the 9th IEEE Signal Processing Workshop on Statistical Signal and Array Processing, September 1998.
• Chi-Hao Cheng and Edward J. Powers, “Optimal Third-Order Volterra Kernel Estimation Algorithms for a Nonlinear Communication System for PSK and QAM Inputs,” The Proc. of the Eighth IEEE Digital Signal Processing Workshop, August 1998.

Book Section

• James Tsui and Chi-Hao Cheng, **Digital Techniques for Wideband Receivers*, 3rd Edition, SciTech Publishing: an imprint of IET. November 2015.