An Event-Based Strategy for ASK demodulation

被引：0
|
作者：
Iga Jadue, Alexis Rodrigo [1 ]
Engels, Sylvain [1 ]
Fesquet, Laurent [2 ]
机构：
[1] Univ Grenoble Alpes, STMicroelect, Inst Engn, Grenoble INP,TIMA,CNRS, F-38000 Grenoble, France
[2] Univ Grenoble Alpes, CNRS, Inst Engn, Grenoble INP,TIMA, F-38000 Grenoble, France
来源：
2019 5TH INTERNATIONAL CONFERENCE ON EVENT-BASED CONTROL, COMMUNICATION, AND SIGNAL PROCESSING (EBCCSP) | 2019年
关键词：
Amplitude shift keying (ASK) demodulator; event-based sampling; asynchronous sampling; level-crossing analog-to-digital converters; adaptive level-crossing scheme; non-uniform sampling; low modulation index (MI); SIGNAL;
D O I：
10.1109/ebccsp.2019.8836831
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents the proof of concept of an almost full digital ASK demodulation technique, targeting the usage of advanced technology nodes, and hence reducing power consumption and area. High level Matlab simulations validate the functionality of the demodulator. The whole structure of this method uses two hysteresis comparators, one custom voltage level generator, two logical gates, a small delay block and a register. This technique allows the ASK demodulation with a minimum modulation index (MI) of 3%, a SNR of 28 dB and a bitrate of fc/4. When using higher MI values, the method is more sensitive and resistant to noise, reaching for example a BER = 0.15%, with a MI = 30%, and a SNR = 13 dB.
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收藏
页数：5
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