The frequency spectrum of polar modulated PWM signals and the image problem. - Shuli Chi; Christian Vogel 001; Peter Singerl (ICECS, 2010)

Coding efficiency of bandlimited PWM based burst-mode RF transmitters. - Shuli Chi; Katharina Hausmair; Christian Vogel 001 (ISCAS, 2013)

How to reach 100% coding efficiency in multilevel burst-mode RF transmitters. - Katharina Hausmair; Shuli Chi; Christian Vogel 001 (ISCAS, 2013)

Efficiency Optimization for Burst-Mode Multilevel Radio Frequency Transmitters. - Shuli Chi; Peter Singerl; Christian Vogel 001 (IEEE Trans. Circuits Syst. I Regul. Pap., 2013)

Aliasing-Free Digital Pulse-Width Modulation for Burst-Mode RF Transmitters. - Katharina Hausmair; Shuli Chi; Peter Singerl; Christian Vogel 001 (IEEE Trans. Circuits Syst. I Regul. Pap., 2013)