چکیده مقاله
One of the major drawbacks in using delta sigma modulator DSM transmitters is a large amount ofquantization noise at the output of DSM which results on low efficiency for transmitter In this paper the efficiency ofDSM transmitter is improved by reducing quantization noise from the DSM output signal while the signal to noise anddistortion ratio SNDR is maintained Simulation results show that by this technique and for 1 92 MHz long termevolution LTE input signal with oversampling ratio OSR of 16, the coding efficiency CE of DSM is improved from9 7% to 23% while the SNDR is around 41dB
کلیدواژهها
نویسندگان
Nasser Erfani Majd
Department of Electrical Engineering, Shohadaye Hoveizeh Campus of Technology, Shahid Chamran University ofAhvaz, Dasht e Azadegan, Khuzestan, Iran
شیوه ارجاع
Erfani Majd, Nasser,1400,Improving the Performance in Delta Sigma Modulator Transmitter,8th National Congress of Electrical and Computer Engineering of Iran,Tehran
ارائهشده در
مجموعه مقالات هشتمین کنگره ملی تازه های مهندسی برق و کامپیوتر ایران28 بهمن 1400 · تهران