Relevant bibliographies by topics / ASK demodulator

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'ASK demodulator'

Author: Grafiati
Published: 21 February 2023

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Journal articles on the topic "ASK demodulator"

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Xu, Yao-Hua, Shuai Yang, Hang Li, Ji-Ming Lv, and Na Bai. "Adaptive Noise-Resistant Low-Power ASK Demodulator Design in UHF RFID Chips." Electronics 10, no. 24 (December 20, 2021): 3168. http://dx.doi.org/10.3390/electronics10243168.

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This paper presents a new signal demodulator for ultra-high frequency (UHF) radio frequency identification (RFID) tag chips. The demodulator is used to demodulate amplitude shift keying (ASK) modulated signals with the advantages of high noise immunity, large input range and low power consumption. The demodulator consists of a charge pump, an envelope detector, and a comparator. In particular, the demodulator provides a hysteresis input signal to the comparator through two envelope detectors, resulting in better noise immunity. The demodulator is based on a standard 0.13 µm CMOS process. The demodulator is suitable for demodulating high frequency signals at 900 MHz with a data rate of 128 Kbps and can operate up to 78 °C. The input signal has a peak of 1.2 V and consumes as little as 113.6 nW. The demodulator also has a noise immunity threshold of approximately 3.729 V.
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Li, Qinglong, Yong Xu, Qiao Li, Kun Peng, and Xian Zhang. "A Demodulation Circuit For Analog Front End Of Passive Tag Chip." Journal of Physics: Conference Series 2065, no. 1 (November 1, 2021): 012007. http://dx.doi.org/10.1088/1742-6596/2065/1/012007.

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Abstract The demodulation circuit designed in this paper is suitable for the analog front end of passive UHF RFID tag chip, which can handle ASK signals with large changes in amplitude, modulation depth and signal frequency. Its performance meets the requirements of standards ISO/IEC 18000-6C and GB/T 29768-2013. Envelope detection circuit and limiter circuit are simple in structure and do not consume power. The comparison reference voltage is taken according to the average value of the envelope high and low levels, and is less affected by the dynamic changes of the input signal. Changing the width-to-length ratio of the MOSFETs in the feedback path of the comparator can adjust the hysteresis, with strong noise suppression and controllable sensitivity. The demodulator is implemented with TSMC 0.18 μm standard CMOS process. The simulation results show that the ASK signal modulation depth that the demodulator can handle is as low as 30%, and the maximum pulse width demodulation error is only 0.43%.
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Dastanian, Rezvan, Ebrahim Abiri, and Khadije Taherinia. "Threshold voltage-level change in ASK demodulator related to RF input signal amplitude for the ultra-high frequency RFID passive tag." International Journal of Microwave and Wireless Technologies 9, no. 1 (November 23, 2015): 9–16. http://dx.doi.org/10.1017/s1759078715001567.

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In this paper, an amplitude shift keying (ASK) demodulator with 100% modulation depth is proposed. In order to achieve the higher power and wider reading range the designed ASK demodulator works in the ultra-high frequency. In this design, the average detector and voltage divider are used in order to define the appropriate threshold voltage level for the radio frequency input signal which leads to the accurate data detecting even at long distances between the tag and reader. In addition, for diminishing the power dissipation of the proposed demodulator, an enable input is used in the buffer and comparator. This circuit is simulated in 0.18 μm complementary metal–oxide–semiconductor (CMOS) technology with Cadence software. Its power dissipation and chip area are 3.9 nW and 0.0025 mm2, respectively.
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MUTASHAR, SAAD, M. A. HANNAN, S. A. SAMAD, and A. HUSSAIN. "DEVELOPMENT OF BIO-IMPLANTED MICRO-SYSTEM WITH SELF-RECOVERY ASK DEMODULATOR FOR TRANSCUTANEOUS APPLICATIONS." Journal of Mechanics in Medicine and Biology 14, no. 04 (July 3, 2014): 1450062. http://dx.doi.org/10.1142/s0219519414500626.

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This paper deals with the development of bio-implanted micro-system with low-power and high data rate based on amplitude shift keying (ASK) modulation technique to stimulate nerves and muscles. The modified system is operated by a low-frequency band 13.56 MHz according to the industrial-scientific-medical (ISM) bands to avoid the biological tissue damage. The data rate on the demodulator side is from 1 Mb/s and up to 1.5 Mb/s depending of generating binary signal (T BIT = 1 μs or 0.5 μs) with modulation index of 13% and modulation rate 7.3%, 9% and 11%, respectively. The proposed inductive coupling link achieves 73% of link efficiency. The modified rectifier with self-threshold voltage cancellation techniques and voltage regulator without thermal protection circuit and without passive elements occupies small area that is modified to generate adequate and stable DC voltages of 1.8 V. A new ASK demodulator structure based on two comparators is developed to extract a synchronized demodulated signal with minimum error. Thereby no need for clock recovery circuit and delay-locked loops (DLL) circuits for data synchronization at 1 Mb/s and 1.250 Mb/s of speed. The system designed using OrCAD Pspice 16.2 is based on 0.35 μm technologies.
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Tzung-Je Lee, Ching-Li Lee, Yan-Jhih Ciou, Chi-Chun Huang, and Chua-Chin Wang. "All-MOS ASK Demodulator for Low-Frequency Applications." IEEE Transactions on Circuits and Systems II: Express Briefs 55, no. 5 (May 2008): 474–78. http://dx.doi.org/10.1109/tcsii.2007.912687.

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Lee, Hyongmin, Jisung Kim, Dongwoo Ha, Taehoon Kim, and Suhwan Kim. "Differentiating ASK Demodulator for Contactless Smart Cards Supporting VHBR." IEEE Transactions on Circuits and Systems II: Express Briefs 62, no. 7 (July 2015): 641–45. http://dx.doi.org/10.1109/tcsii.2015.2415653.

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Chua-Chin Wang, Chih-Lin Chen, Ron-Chi Kuo, and Doron Shmilovitz. "Self-Sampled All-MOS ASK Demodulator for Lower ISM Band Applications." IEEE Transactions on Circuits and Systems II: Express Briefs 57, no. 4 (April 2010): 265–69. http://dx.doi.org/10.1109/tcsii.2010.2043474.

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Lee, Tzung-Je. "9.9 V ASK Demodulator Using Differential Shaper for High-Impedance Electrode." Circuits, Systems, and Signal Processing 33, no. 7 (March 14, 2014): 2027–42. http://dx.doi.org/10.1007/s00034-014-9755-z.

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Kafi Kangi, Mohammad, Mohammad Maymandi-Nejad, and Mahshid Nasserian. "A Fully Digital ASK Demodulator With Digital Calibration for Bioimplantable Devices." IEEE Transactions on Very Large Scale Integration (VLSI) Systems 23, no. 8 (August 2015): 1557–61. http://dx.doi.org/10.1109/tvlsi.2014.2343946.

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Kim, J., and K. Pedrotti. "202pJ/bit area-efficient ASK demodulator for high-density visual prostheses." Electronics Letters 48, no. 9 (2012): 477. http://dx.doi.org/10.1049/el.2012.0037.

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Dissertations / Theses on the topic "ASK demodulator"

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Fiore, Vincenzo. "Fully integrated systems with on-chip galvanic isolation in silicon technology." Doctoral thesis, Università di Catania, 2015. http://hdl.handle.net/10761/3866.

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In this work the investigation on fully integrated systems providing on-chip galvanic isolation is presented, which exploits a silicon technology by STMicroelectronics. This research is mainly motivated by the higher level of integration that is demanded to the next generation of power converters and general applications featuring galvanic isolation. State-of the art implementations rely on complex post-processed passive devices to implement isolated power transfer within multi-die system in packages. In this work, two silicon implementations are mainly discussed, i.e. a step-up power transfer system and the ASK data receivers of a data/power transfer system. They achieve up to 980 mW output power with 29.6% efficiency and up to 40 Mbps with 5% modulation index, respectively, thus showing enhanced performance with respect to the state-of-the-art. Each system requires only two silicon chips to implement both galvanic isolation and power transfer, thus achieving the highest possible level of integration for a pure silicon technology.
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Chen, Chih-Lin, and 陳致霖. "Self-sampled All-MOS ASK Demodulator & Synchronous DAC with Self-calibration for Bio-medical Applications." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/28749964792914155682.

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碩士
國立中山大學
電機工程學系研究所
98
This thesis includes two topics, which are a Self-sampled ALL-MOS ASK Demodulator and a Synchronous DAC with Self-calibration. An all-MOS ASK demodulator with a wide bandwidth for lower ISM band applications is presented in the first half of this thesis. The chip area is reduced without using any passive element. It is very compact to be integrated in an SOC (system-on-chip) for wireless biomedical applications, particularly in biomedical implants. Because of low area cost and low power consumption, the proposed design is also easily to be integrated in other mobile medical devices. The self-sampled loop with a MOS equivalent capacitor compensation mechanism enlarges the bandwidth, which is more than enough to be adopted in any application using lower ISM bands. To demonstrate this technique, an ASK demodulator prototype is implemented and measured using a TSMC 0.35 μm standard CMOS process. The second topic reveals a synchronous DAC with self-calibration. The main idea is to use a calibration circuit to overcome large error of output voltage caused by the variation of the unit capacitor. When DAC is not calibrated, INL is larger than 1.7 LSB. After calibrated, INL is improved to be smaller than 0.5 LSB. To demonstrate this technique, a DAC prototype is implemented and measured using a TSMC 0.18 μm standard CMOS process.
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Kao, Chen-Hua, and 高震驊. "Wireless Power and Data Transmission with ASK Demodulator, FSK Modulator and Power Regulator for Biomedical Implantable SoC." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/30577601914875388583.

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碩士
國立清華大學
電機工程學系
98
Biomedical implantable devices have appeared for more than fifty years. With more understandings of neuroscience, some diseases caused by neural abnormal discharge or disable may be cured or improved by neural stimulation techniques. Most of the wireless implantable devices transmit power and data into the no-battery implantable device by magnetic coupling. And the bidirectional data transmission, we can control and monitor the implantable system. This thesis presents the wireless power and bidirectional data transmission for biomedical implantable SoC. The chip contains power regulator, ASK (Amplitude Shift Keying) demodulator and FSK (Frequency Shift Keying) modulator, using the TSMC 0.18μm CMOS processing. The chip size is 0.031mm^2.(Without PAD) The transmission system utilizes coils electric magnetic field coupling the power and data into the chip, Power regulator produces the stability power for chip and other circuits. The ASK demodulator can decode the ASK signal and provide the clock signal. The FSK modulator can encode the implantable device data signal which wanted to transmit out, and transmitted through coil coupling. This study presents a novel ASK demodulator using the self-sampling structure for biomedical implantable devices. The modulation index and modulation rate are relative to power transmission efficiency. Results show that with a 2MHz carrier, the proposed ASK demodulator structure has a minimum modulation index down to 4.05% and a 50 % maximum modulation rate. The ASK demodulator also has a controllable modulation index and maintains a constant high-efficiency modulation rate for biomedical implantable systems.
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Ciou, Yan-Jhih, and 邱彥智. "A C-less and R-less ASK Demodulator for Wireless Implantable Devices and A Low-power 2-dimensional Bypassing Multiplier." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/8t4w4m.

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碩士
國立中山大學
電機工程學系研究所
95
The first topic of this thesis is a C-less and R-less ASK (Amplitude Shift Keying) demodulator design for wireless implantable devices. Lots of prior ASK demodulators were composed of one or more capacitors which might be integrated in a chip or positioned off-chip on a PCB (Printed Circuit Board). The capacitor increases the area of the implantable system regardless of on-chip or off-chip, which violates the small-scale requirement for implanted applications. Thus, this work proposes a miniature ASK demodulator without any passive elements, i.e., R or C. The noise margin of the envelope detector in the C-less ASK demodulator is enlarged such that any Schmitt trigger or current limiting resistor is no longer needed. It results in the number of transistors required for the ASK demodulator circuit is reduced to 12. The second topic of this thesis is a design of a low-power 2-dimensional bypassing multiplier. The proposed bypassing cells constituting the multiplier skip redundant signal transitions when the horizontally (row) partial product or the vertically (column) operand is zero. Thorough post-layout simulations show that the power dissipation of the proposed design is reduced by more than 41% compared to the prior design with obscure penalty of delay and area.
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Books on the topic "ASK demodulator"

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Veshkurtsev, Yury. THE FOUNDATIONS OF THE THEORY OF CONSTRUCTION OF NEW-GENERATION MODEMS. au: AUS PUBLISHERS, 2022. http://dx.doi.org/10.26526/monography_628a8925151ca0.71125494.

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The monography presents the fundamentals of the theory of construction new-generation modems. Modems are built on the principles of statistical communication theory, based on the use of a random signal (chaos) as a carrier of information. In such a signal, a characteristic function is modulated, which is a fundamental characteristic of a random process. The signal modulation and demodulation method is patented and allows you to create modems with efficiency and noise immunity indicators several orders of magnitude higher than those of the known devices of the same name. New-generation modems immediately improve the technical characteristics of digital IT equipment by several orders of magnitude, since they work without errors in wired and radio channels when receiving one hundred duodecillion of binary symbols. The book is recommended for scientists and specialists in the field of digital communication systems, statistical radio engineering and instrumentation, and may be useful for graduate students, masters and students of relevant specialties.
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Book chapters on the topic "ASK demodulator"

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Chernoyarov, Oleg, Alexey Glushkov, Yury Kutoyants, Vladimir Litvinenko, and Alexandra Salnikova. "Coherent Demodulation of APSK and QAM Signals." In Cybernetics Perspectives in Systems, 386–400. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09073-8_33.

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Kolodner, Paul, and Hugh Williams. "Complex Demodulation Techniques for Experiments on Traveling-Wave Convection." In NATO ASI Series, 73–91. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5793-3_9.

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Li, Huiqiong, Ying Wei, and Changjian Zhu. "Convolutional Neural Network Analysis for Modulation Classification of Wireless Communication Signal." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde221103.

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Modulation classification detects the modulation type of received signals to guarantee that the signals can be correctly demodulated and that the transmitted message can be accurately recovered. For the modulation classification of M-PSK, M-QAM and M-APSK modulated signals with similar constellation maps, we analyze waveform characteristics of the signal in the time domain. Based on the waveform characteristics of the signal, we explore the feasibility of using convolutional neural network (CNN) to identify the modulation classification of the signal. We analyze the data input structure and network model required for modulation classification using CNN. Considering the impairment of the signal by additive white Gaussian noise (AWGN), clock offset and Rician multipath fading, a combined channel is simulated in this paper to obtain the impaired data as dataset. The simulation results show that CNN has great potential for modulation classification.
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Conference papers on the topic "ASK demodulator"

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Choi Myoeng-Jae and Jin Sung-Eon. "Design of low power ASK CMOS demodulator circuit for RFID tag: Design of All-MOSFET low power ASK demodulator." In 2010 IEEE International Conference of Electron Devices and Solid- State Circuits (EDSSC). IEEE, 2010. http://dx.doi.org/10.1109/edssc.2010.5713752.

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Arijal, Muhammad, Khilda Afifah, and Nicodimus Retdian. "Direct Conversion Using N-Path Filter for ASK Demodulator." In 2018 International Symposium on Electronics and Smart Devices (ISESD). IEEE, 2018. http://dx.doi.org/10.1109/isesd.2018.8605441.

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Bin Liang, Zhi Yang, and Wentai Liu. "An ASK demodulator for data telemetry in biomedical application." In 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2009. http://dx.doi.org/10.1109/iembs.2009.5332396.

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Li, Hongge, and Wenshi Li. "A High-Performance ASK Demodulator for Wireless Recovery System." In 2007 International Conference on Wireless Communications, Networking and Mobile Computing. IEEE, 2007. http://dx.doi.org/10.1109/wicom.2007.307.

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Gong, Cihun-Siyong Alex, Chen-Lung Wu, Sheng-Yang Ho, Tong-Yi Chen, Jia-Chun Huang, Chia-Wei Su, Chun-Hsien Su, et al. "Design of Self-Sampling Based ASK Demodulator for Implantable Microsystem." In 13th IEEE International Conference on Electronics, Circuits and Systems. IEEE, 2006. http://dx.doi.org/10.1109/icecs.2006.379674.

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Miao, Yi, Jiancheng Li, Hongyi Wang, Lei Cai, Yu Xiao, Li Yang, and Miaoxia Zheng. "Adjustable duty cycle ASK demodulator for passive UHF RFID tags." In 2016 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC). IEEE, 2016. http://dx.doi.org/10.1109/edssc.2016.7785257.

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Mitwong, Hanphon, and Varakorn Kasemsuwan. "Low-voltage low-power current-mode amplitude shift keying (ASK) demodulator." In 2012 IEEE International Conference of Electron Devices and Solid-State Circuits (EDSSC). IEEE, 2012. http://dx.doi.org/10.1109/edssc.2012.6482777.

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Huang Xiaozong, Liu Zhiwei, Liu Luncai, Liu Fan, Zhu Dongmei, and Huang Wengang. "A compact low power ASK demodulator for passive UHF RFID tags." In 2014 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC). IEEE, 2014. http://dx.doi.org/10.1109/edssc.2014.7061180.

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Sha, Xiao, Yuanfei Huang, Tutu Wan, Yasha Karimi, Samir Das, Petar Djuric, and Milutin Stanacevic. "A Self-Biased Low Modulation Index ASK Demodulator for Implantable Devices." In 2020 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2020. http://dx.doi.org/10.1109/iscas45731.2020.9180726.

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Hongqiang Zong, Jinpeng Shen, Shan Liu, Mei Jiang, Qingyuan Ban, Ling Tang, Fanyu Meng, and Xin'an Wang. "An ultra low power ASK demodulator for passive UHF RFID tag." In 2011 IEEE 9th International Conference on ASIC (ASICON 2011). IEEE, 2011. http://dx.doi.org/10.1109/asicon.2011.6157286.

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