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2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)最新文献

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Requirements for an integrated conditioning circuit for multiphase flow imaging using impedance wire-mesh sensors 使用阻抗线网传感器的多相流成像集成调理电路的要求
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451067
J. S. Filho, C. A. Costa, G. Cunha, D. Belfort, S. Catunda, E. N. Santos, M. J. Silva
{"title":"Requirements for an integrated conditioning circuit for multiphase flow imaging using impedance wire-mesh sensors","authors":"J. S. Filho, C. A. Costa, G. Cunha, D. Belfort, S. Catunda, E. N. Santos, M. J. Silva","doi":"10.1109/LASCAS.2016.7451067","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451067","url":null,"abstract":"This paper proposes an architecture of a conditioning circuit for dual-modality wire-mesh sensors, applied to multiphase flow measuring. The proposed circuit topology uses an AC-based impedance measurement technique, and is able to process signals from a 4×4 wire-mesh structure, performing an I/Q demodulation for the direct extraction of fluid permittivity and conductivity values. System-level considerations are taken into account to derive the requirements for the main circuit blocks, which are aimed to be integrated on standard CMOS technology.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"446 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116187188","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
Realization of 4D lattice-ladder digital filters 四维格梯数字滤波器的实现
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7450998
M. Kousoulis, G. Antoniou
{"title":"Realization of 4D lattice-ladder digital filters","authors":"M. Kousoulis, G. Antoniou","doi":"10.1109/LASCAS.2016.7450998","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7450998","url":null,"abstract":"A circuit realization is presented for four-dimensional (4D) lattice-ladder discrete filters. The proposed 4D circuit realization requires, for its implementation, a minimum number of delay elements. Further, the dimension of the state-vector, of the derived 4D state-space model, is minimal and its 4D transfer function is characterized by the all-pass property. A step-by-step low-order example is provided to demonstrate the proposed minimality of both, circuit, and state-space realizations. An educational conjointment of 4D lattice filters with lower dimension filters (2D, 1D), is imparted.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127639849","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: 5
Low voltage low power current reference circuit for passive RFID applications 无源RFID应用的低电压低功率电流参考电路
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451021
Dalton Martini Colombo, R. Soares, Fabricio Mattos
{"title":"Low voltage low power current reference circuit for passive RFID applications","authors":"Dalton Martini Colombo, R. Soares, Fabricio Mattos","doi":"10.1109/LASCAS.2016.7451021","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451021","url":null,"abstract":"Passive RFID circuits depend on low voltage low power area-efficient current references. This work presents two current source implementations using 180 nm CMOS process. Both circuits work with a minimum supply voltage of 0.8 V and with a current consumption lower than 150 nA. The first one has a positive temperature coefficient while the second one is temperature compensated. Silicon results from 10 measured samples show an average output current of 21.8 nA and 20.1 nA for the PTAT and the temperature-compensated (COMP) references, respectively. Their measured temperature variations were about 41% and 5% in temperature range of -40 to 65 °C, for the PTAT and COMP, respectively.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132879687","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: 4
A fault injection platform for FPGA-based communication systems 基于fpga的通信系统故障注入平台
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451009
Marcos T. Leipnitz, Geferson L. H. Júnior, G. Nazar
{"title":"A fault injection platform for FPGA-based communication systems","authors":"Marcos T. Leipnitz, Geferson L. H. Júnior, G. Nazar","doi":"10.1109/LASCAS.2016.7451009","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451009","url":null,"abstract":"Field Programmable Gate Arrays (FPGAs) are successful platforms for the implementation of communication systems, due to their potential high throughput and low development costs. In such systems, however, investigating the system's resilience to soft errors is crucial in many scenarios, such as when facing stringent dependability constraints or when operating in radiation-harsh environments. Therefore, in this paper we present a fault injection platform that targets specifically FPGA-based communication systems. The platform operates partially on the device and partially on a host computer, aiming at both flexibility and high performance. A Reed-Solomon decoder is used as a case study to validate the platform, showing its ability to measure metrics that are relevant both for critical systems (e.g., fault sensitivity) as well as for communication systems in general (e.g., bit error rate).","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114309378","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
Range segmentation to improve latency in parallel stochastic computing 改进并行随机计算延迟的范围分割
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451071
Rai Saraiva, Julio C. Ruzicki, A. Souza, R. Soares
{"title":"Range segmentation to improve latency in parallel stochastic computing","authors":"Rai Saraiva, Julio C. Ruzicki, A. Souza, R. Soares","doi":"10.1109/LASCAS.2016.7451071","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451071","url":null,"abstract":"Stochastic Computing (SC) is a fault tolerant design paradigm where numeric data are converted to probabilities on streams of random digital bits. This representation allows computing on low complexity hardware. SC allows a significant area reduction and an increased tolerance to transient errors, but presents high latency to achieve a moderate accuracy. Recent papers address this issue using parallelism and stochastic multibit number representations. In this paper, Multilevel Stochastic Coding (MSC), a new stochastic representation based on range segmentation is presented and its operators are developed using FPGA design flow and compared to alternative approaches. A comparison in terms of area and latency is applied between approaches to achieve a given signal to noise ratio (SNR). Results show that MSC presents a significant latency reduction with a smaller area penalty.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116044432","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 fully-differential DC restoration circuit 全差分直流恢复电路
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451001
E. Spinelli, A. Veiga
{"title":"A fully-differential DC restoration circuit","authors":"E. Spinelli, A. Veiga","doi":"10.1109/LASCAS.2016.7451001","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451001","url":null,"abstract":"Modern instrumentation is moving towards fully differential conditioning circuits. They provide an elegant and efficient way to adapt differential signals, like those provided by balanced sensors, to differential-input analog-to-digital converters (ADC). For that to be possible, many well-known Single-Ended (SE) conditioning circuits must be converted to their Fully-Differential (FD) versions. This work presents a FD dc servo circuit, able to restore both common mode and differential mode dc levels to their desirable values, suited to those required by the ADC to optimize its input range. The general scheme and the design procedure to adapt the circuit to particular needs are presented. Also experimental data obtained from a FD dc restoration circuit are presented.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134639463","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
Reducing the number of transistors with gate clustering 利用栅极聚类技术减少晶体管数量
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451035
Calebe Conceição, G. Posser, R. Reis
{"title":"Reducing the number of transistors with gate clustering","authors":"Calebe Conceição, G. Posser, R. Reis","doi":"10.1109/LASCAS.2016.7451035","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451035","url":null,"abstract":"In this work a greedy cell clustering technique is proposed to reduce the number of transistors of circuits. Reducing the amount of transistors can provide leakage power reduction. The clusterization is applied to a set of connected cells with fanout one. These cells are replaced by a equivalent logic complex cell. Hereafter, the layout of any cluster can be automatically designed by using a layout generation tool. The ITC'99 benchmark circuits are synthesized to the 45nm Open Cell Library. The clustering technique presented in this work is able to provide a reduction in the number of transistors of 9.8%, on average, over the synthesis using all cells available in the library. We show that the set of logic functions used by the input netlist influences the results obtained by clustering. For a netlist synthesized without the complex cells of the library our clustering technique reduced the number of transistors in up to 22.3% when compared to the original netlist.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134048440","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
Surface electromyography measurements for ingestive behaviour identification on goats 山羊进食行为识别的表面肌电图测量
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451062
D. Campos, P. J. Abatti, F. L. Bertotti, A. L. F. D. Silveira, João Ari Gualberto Hill
{"title":"Surface electromyography measurements for ingestive behaviour identification on goats","authors":"D. Campos, P. J. Abatti, F. L. Bertotti, A. L. F. D. Silveira, João Ari Gualberto Hill","doi":"10.1109/LASCAS.2016.7451062","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451062","url":null,"abstract":"Monitoring grazing ruminants ingestive behaviour has applications in measuring animal welfare, animal diseases detection and animal production system modelling. Current monitoring methods are mostly laborious, time expensive or invasive. In this work, it is presented a non-invasive method for chewing activity identification on goats by masseter muscle surface Electromyography (sEMG). Short-term chewing/resting time and chewing count were successfully predicted on male goats comparing to visual observation.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126074437","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: 4
Digital circuit for the generation of colored noise exploiting single bit pseudo random sequence 利用单比特伪随机序列产生彩色噪声的数字电路
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451000
E. Napoli, G. Castellano, D. Esposito, A. Strollo
{"title":"Digital circuit for the generation of colored noise exploiting single bit pseudo random sequence","authors":"E. Napoli, G. Castellano, D. Esposito, A. Strollo","doi":"10.1109/LASCAS.2016.7451000","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451000","url":null,"abstract":"The generation of complex signal sources is important for test and validation of electronic systems. With reference to noise sources, commercial systems only provide white noise sources while the scientific literature only recently proposed circuits that generate programmable colored noise. This paper proposes a programmable colored noise generator that, while generating noise signals with features matching the state of the art, overcomes the previously proposed circuits in terms of speed (+10%) and logic resource occupation (-75%).","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127281488","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
Solutions for DMM-1 complexity reduction in 3D-HEVC based on gradient calculation 基于梯度计算的3D-HEVC DMM-1复杂度降低方案
2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS) Pub Date : 2016-02-01 DOI: 10.1109/LASCAS.2016.7451047
Mário Saldanha, B. Zatt, M. Porto, L. Agostini, G. Sanchez
{"title":"Solutions for DMM-1 complexity reduction in 3D-HEVC based on gradient calculation","authors":"Mário Saldanha, B. Zatt, M. Porto, L. Agostini, G. Sanchez","doi":"10.1109/LASCAS.2016.7451047","DOIUrl":"https://doi.org/10.1109/LASCAS.2016.7451047","url":null,"abstract":"This paper proposes a space exploration over gradient-based algorithms to obtain time savings when applying Depth Modeling Mode (DMM) 1 on 3D High Efficiency Video Coding (3D-HEVC) depth maps coding. Four filtering algorithms exploring depth maps characteristics by applying a gradient filter in the depth block borders were evaluated. These filters are applied to detect the best positions to evaluate DMM-1 algorithm, without the use of a semi-brute force approach. Experimental analysis demonstrates that the proposed solutions are capable to achieve time saving results ranging from 4.9% to 8.2%, with a drawback ranging from 0.33% to 1.47% in terms of BD-Rate increase.","PeriodicalId":129875,"journal":{"name":"2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121496942","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: 11
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