Title :
Modulation Error Ratio Degradation Due to Error Sources Existing in a DRM Transmitter Using Envelope Elimination and Restoration
Author :
Mazlumi, Farhad ; Khoshgard, Mehdi
Author_Institution :
Civil Aviation Technol. Coll., Tehran
Abstract :
This paper aims to study the effects of three error sources on the modulation error ratio for a DRM broadcast system which uses an EER based power amplifier. The considered error sources are a) clipping and quantization of the envelope signal before digital to analog conversion, b) limiting the bandwidth of the envelope signal, and c) the time mismatch between the envelope and modulated phase signals. The study is based on the simulation results of a DRM broadcast system which is modeled by using SIMULINK
Keywords :
digital radio; phase modulation; power amplifiers; quantisation (signal); radio broadcasting; radio transmitters; signal restoration; DRM broadcast transmitter; EER based power amplifier; SIMULINK; clipping; digital radio Mondiale; digital-analog conversion; envelope elimination-restoration; error source; phase signal modulation; signal quantisation; Bandwidth; Degradation; Digital modulation; Digital-analog conversion; Phase modulation; Power amplifiers; Power system restoration; Quantization; Signal restoration; Transmitters; Digital radio; envelope elimination and restoration; error analysis; power amplifiers; quantization; radio broadcast transmitters;
Conference_Titel :
Wireless Technology, 2006. The 9th European Conference on
Conference_Location :
Manchester
Print_ISBN :
2-9600551-5-2
DOI :
10.1109/ECWT.2006.280492
