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Compensating the high power amplifier nonlinearity for a DVB-S2 system DVB-S2系统的高功率放大器非线性补偿
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6329051
Esteban Cabanillas, D. Lohy, C. Lahuec, M. Jézéquel
{"title":"Compensating the high power amplifier nonlinearity for a DVB-S2 system","authors":"Esteban Cabanillas, D. Lohy, C. Lahuec, M. Jézéquel","doi":"10.1109/NEWCAS.2012.6329051","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6329051","url":null,"abstract":"This paper deals with the compensation of High Power Amplifier induced nonlinear Inter-Symbol Interference (NISI) in a DVB-S2 receiver. The Volterra Canceller is an optimal technique if NISI is perfectly estimated. To reach this ideal case, a linearization of the received signal can be done before memory effects appears. In this work, this is achieved using a Laguerre polynomial linearizer. Computer simulations show that the combination of techniques reduces the average number of LDPC iterations thanks to an SNR improvement of 0.16 dB compare to a simple Volterra Canceller, without significant added complexity.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127411017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A wirelessly ultra-low-power system for equilibrium measurements in total hip replacement surgery 全髋关节置换术中平衡测量的无线超低功耗系统
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6328976
Zhihua Wang, Hong Chen, Ming Liu, Hanjun Jiang, Tianjia Sun, Xu Zhang
{"title":"A wirelessly ultra-low-power system for equilibrium measurements in total hip replacement surgery","authors":"Zhihua Wang, Hong Chen, Ming Liu, Hanjun Jiang, Tianjia Sun, Xu Zhang","doi":"10.1109/NEWCAS.2012.6328976","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6328976","url":null,"abstract":"This paper presents a wirelessly ultra-low-power system for equilibrium measurement in Total Hip Replacement (THR) surgery. The system consists two parts: the Contact Array Measurement System (CAMS) and the display part. The CAMS is designed to measure the contact distribution of the sensors array between the surface of the femoral head and the acetabulum of the template. The sensors array is designed on the surface of the femoral head and the data is transmitted wirelessly by a low power transceiver. The CAMS composes of a sensors array (31 sensors used in current system), an ultra-low-power microprocessor, and an ultra-low-power transceiver. The display part demonstrates the contact distribution in-vivo in 3D images. The two parts of the system communicate with each other on a RF link at the band of 400MHz. The signal conditioning circuits, the sub-threshold 8-bit microprocessor and the transceiver have been designed and fabricated in 0.18μm CMOS process. The tested results show that the solution of the signal conditioning circuits is 60.1μVpp (1.35g) with ±100mVpp input and the chip can operate under 1.2V to 3.6V voltage supply for single battery application with 116-160μA power consumption. The 3Mbps MSK transmitter consumes only 3.9mW in total. The system has been validated by experimental results. Some clinical experiments will be carried out in the future.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128985967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A background extraction technique for bandwidth mismatch error in a two-channel time-interleaved ADC 一种针对双通道时间交错ADC带宽不匹配误差的背景提取技术
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6329029
F. Ghanem, A. Biallais, P. Gandy
{"title":"A background extraction technique for bandwidth mismatch error in a two-channel time-interleaved ADC","authors":"F. Ghanem, A. Biallais, P. Gandy","doi":"10.1109/NEWCAS.2012.6329029","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6329029","url":null,"abstract":"Bandwidth Mismatch between channels sampling circuits in a time-interleaved analog-to-digital data converter (TI ADC) causes undesirable distortions in the output spectrum. This error interferes in gain and phase with the static gain and clock skew errors respectively, which makes its extraction much difficult. In this paper, an online extraction technique of the bandwidth mismatch error is proposed. Furthermore, a correction solution is presented to validate this extraction.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131523576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
A versatile low-power ciphering and integrity protection unit for LTE-advanced mobile devices 用于lte先进移动设备的多功能低功耗加密和完整性保护单元
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6329020
S. Traboulsi, V. Frascolla, N. Pohl, J. Hausner, A. Bilgic
{"title":"A versatile low-power ciphering and integrity protection unit for LTE-advanced mobile devices","authors":"S. Traboulsi, V. Frascolla, N. Pohl, J. Hausner, A. Bilgic","doi":"10.1109/NEWCAS.2012.6329020","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6329020","url":null,"abstract":"In this paper we present a versatile hardware architecture for accelerating the Long Term Evolution (LTE) integrity protection and confidentiality algorithms based on SNOW3G and ZUC stream ciphers. The proposed design combines both ciphers in a unified configurable hardware accelerator unit and focuses on area and energy consumption reduction, by applying resource sharing and power optimization techniques. Hardware implementations base on Faraday's 90 nm standard cell library and are evaluated at various timing constraints that account for data rates typical of LTE-Advanced mobile terminals. The unified architecture is compared to the stand-alone implementations, providing results that show an overall area reduction of 35% and a power saving of 40% and 75% for the confidentiality and integrity protection algorithms, respectively.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132704801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Highly stable, dual-port, sub-threshold 7T SRAM cell for ultra-low power application 高度稳定，双端口，亚阈值7T SRAM单元，用于超低功耗应用
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6329064
A. Sil, Srikanth Bakkamanthala, Swetha Karlapudi, M. Bayoumi
{"title":"Highly stable, dual-port, sub-threshold 7T SRAM cell for ultra-low power application","authors":"A. Sil, Srikanth Bakkamanthala, Swetha Karlapudi, M. Bayoumi","doi":"10.1109/NEWCAS.2012.6329064","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6329064","url":null,"abstract":"As the supply voltage is reducing with feature size, SRAM cell design is going through severe stability issues. The issue becomes worse due to increased variability in below sub-100nm technology. In this paper, we present a highly stable 2-port 7T SRAM cell for ultra-low power in 90nm technology. The dynamic read noise margin is improved by 7X over conventional dual port SRAM. Finally, a 4Kb bit-interleaved SRAM architecture is presented using proposed cell. Experimental results show that memory consumes 1.26pJ/bit at 0.22V supply voltage with 2MHz performance. The dynamic read noise margin is improved by 7X over conventional dual port SRAM. The successful write and read operations can be performed at supply voltage as low as 0.17V. Two level write decoder architecture is used to eliminate the pseudo read problem in unselected columns.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131968868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Bifrequency characterization of linear time-varying systems 线性时变系统的双频特性
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6328949
S. Erfani, M. Ahmadi, N. Bayan
{"title":"Bifrequency characterization of linear time-varying systems","authors":"S. Erfani, M. Ahmadi, N. Bayan","doi":"10.1109/NEWCAS.2012.6328949","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6328949","url":null,"abstract":"This paper presents a summary in the development of a bifrequency theory for the class of single-input single-output (SISO) linear time-varying (LTV) systems based on the classical two-dimensional Laplace transform (2DLT). The theory is a natural extension of the conventional operational calculus for multivariable functions and systems. Applications of the proposed theory are illustrated by examples, which indicate that the bifrequency characterization of LTV systems is the most powerful technique for the analysis and design of dynamic systems.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122579108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An effective target tracking algorithm with anti-RGPO ability 一种具有抗rgpo能力的有效目标跟踪算法
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6328970
T. Cheng, Zishu He, Yaxing Li
{"title":"An effective target tracking algorithm with anti-RGPO ability","authors":"T. Cheng, Zishu He, Yaxing Li","doi":"10.1109/NEWCAS.2012.6328970","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6328970","url":null,"abstract":"To deal with target tracking in range gate pull off (RGPO) jamming, a tracking algorithm with anti-RGPO ability is proposed. The characteristics that false target will fall behind the true target with higher observed SNR is introduced into conventional test method, and a modified test is given. Combing the result of modified test and 2/3 logic test, whether RGPO exists is finally decided. If RGPO jamming is discriminated, the farther measurement in the measurement pair that passed the modified test is deleted to counter RGPO. Conventional probabilistic data association filter (PDAF) is used to process the measurements without RGPO jamming. Simulation results demonstrate that the tracking algorithm can keep high precision tracking of target in RPGO environment and decrease the tracking drop rate effectively.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124180956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Energy efficient diagnostic grade mobile ECG monitoring 节能诊断级移动心电监护
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6328979
Chun-Chieh Chan, Wei-Chieh Chou, Ching-Wei Chen, Y. Ho, Yen-Hung Lin, Hsi-Pin Ma
{"title":"Energy efficient diagnostic grade mobile ECG monitoring","authors":"Chun-Chieh Chan, Wei-Chieh Chou, Ching-Wei Chen, Y. Ho, Yen-Hung Lin, Hsi-Pin Ma","doi":"10.1109/NEWCAS.2012.6328979","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6328979","url":null,"abstract":"An energy efficient prototype for diagnostic grade mobile ECG monitoring is developed. The prototype is developed with commercial discrete components to demo a patient centric medical environment. The prototype uses a mobile phone as a gateway to transmit the measured ECG data back to the medical cloud: Bluetooth for ECG sensor to the mobile phone, while 3G/WiFi for the mobile phone to the medical cloud. Therefore, the patients are not tied to the hospital or home, and can go outside for common life. The prototype can calculate on the mobile phone the RR intervals. More accurate RR, QRS interval can be obtained from server. The platform can also analyze the non-linear analysis of heart rate variability in patients with congestive heart failure based on multi-scale entropy. The size of the developed ECG sensor node is 75 mm × 35 mm × 20 mm which is smaller than a credit card in area. The noise density of the amplifier is 22 nV/√Hz, and the total power of the sensor frontend is below 100 uA. For wireless transmission, the Bluetooth module with a micro controller consumes current less than 110 mA. The prototype can monitor ECG continuously for over 24 hours or with 3 weeks standby time.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126892858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Design and Modeling of ADPLL with sliding-window for wide range frequency tracking 宽范围频率跟踪带滑动窗口ADPLL的设计与建模
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6329008
Chuan Shan, D. Galayko, F. Anceau
{"title":"Design and Modeling of ADPLL with sliding-window for wide range frequency tracking","authors":"Chuan Shan, D. Galayko, F. Anceau","doi":"10.1109/NEWCAS.2012.6329008","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6329008","url":null,"abstract":"An architecture of All-Digital Phase-Locked Loop (ADPLL) with sliding window for wide range frequency tracking is proposed to reduce energy consumption and to accelerate convergence. A synthesizable VHDL model is created for this circuit. Simulation and syntheses results demonstrate high performance of the new architecture.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124728290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Study of rough surface to decrease reverberation noise in ultrasonic imaging 粗糙表面降低超声成像混响噪声的研究
10th IEEE International NEWCAS Conference Pub Date : 2012-06-17 DOI: 10.1109/NEWCAS.2012.6329068
Jinying Zhang, G. Han, Shuming Chen, Yue Qian, Weijiang Xu, J. Carlier, B. Nongaillard
{"title":"Study of rough surface to decrease reverberation noise in ultrasonic imaging","authors":"Jinying Zhang, G. Han, Shuming Chen, Yue Qian, Weijiang Xu, J. Carlier, B. Nongaillard","doi":"10.1109/NEWCAS.2012.6329068","DOIUrl":"https://doi.org/10.1109/NEWCAS.2012.6329068","url":null,"abstract":"Rough back surface is investigated to decrease the reverberation noise in ultrasonic imaging. Silicon crystal is selected as the backing substrate of the ultrasonic transducer because rough structure is convenient to be fabricated on silicon substrate using microfabrication technologies. Different dimensions of rough boundaries are designed and simulated to scatter the undesired waves based on finite element method modeling. Transient analysis indicates that a rough surface whose dimension (including depth and width) is around 1.0 λ should be considered to scatter a majority of incident waves.","PeriodicalId":122918,"journal":{"name":"10th IEEE International NEWCAS Conference","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128096709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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