Multibit delta sigma modulator with noise shaping dynamic element matching

... Most Significant Bit Noise- Shaping DEM Noise Shaping DWA Noise Shaping Dithered Tree Structure Noise- Shaping Randomization Noise Shaping PDWA Noise Shaping Tree Structure Noise Transfer Function ... 54 4.2.1 NS-RAND 55 4.2.2 ΔΣM with Noise Shaping DWA 58 4.2.3 ΔΣM with Noise Shaping PDWA 65 4.2.4 ΔΣM with Noise Shaping Tree-structure DEM 68 4.2.5 S...

Ngày tải lên: 12/09/2015, 08:20

... Delta- Sigma Modulators………………… 21 2.4 Literature Review on Low- Voltage Low- Power Delta- Sigma Modulators …… 23 2.4.1 Low- Voltage Low- Power Design Challenges …………………… ……… 23 2.4.2 Low- Voltage Low- Power ... discrete -time Delta- Sigma modulator to the continuous- time Delta- Sigma modulator DT Delta- Sigma modulators, which are based on Switched-Ca...

Ngày tải lên: 11/09/2015, 10:07

... (ICASSP ’01), vol 4, pp 2621–2624, Salt Lake City, Utah, USA, May 2001 [6] M A Aldajani and A H Sayed, “Stability and performance analysis of an adaptive sigma-delta modulator,” IEEE Transactions ... Processing, vol 2007, Article ID 16286, pages, 2007 [8] G S Tombras and C A Karybakas, “New adaptation algorithm for a two-digit adaptive delta modulation system, ” Internati...

Ngày tải lên: 22/06/2014, 19:20

... issues, the input structure and operation of the device must first be evaluated The input pins of the MCP3551 device are switched-capacitor-type inputs The input pins go directly into the delta- sigma ... both C and assembly languages The MCP3551 22-Bit DeltaSigma ADC PICtail™ Demo Board connects with the DataView software through the PIC18F4550 via USB and is sup...

Ngày tải lên: 11/01/2016, 16:36

... Robust reconstruction algorithm for compressed sensing in Gaussian noise environment using orthogonal matching pursuit with partially known support and random subsampling Parichat ... rate and better visual quality in all cases Keywords: compressed sensing (CS); orthogonal matching pursuit (OMP); distributed compressed sensing; model-ba...

Ngày tải lên: 21/06/2014, 17:20

... Robust reconstruction algorithm for compressed sensing in Gaussian noise environment using orthogonal matching pursuit with partially known support and random subsampling Parichat Sermwuthisarn1, ... rate and better visual quality in all cases Keywords: compressed sensing (CS); orthogonal matching pursuit (OMP); distributed compressed sen...

Ngày tải lên: 21/06/2014, 19:20

... Higher-order quantization Classical Sigma-Delta noise shaping is commonly done in multiple stages to achieve higher-order noise shaping Similarly noise shaping on arbitrary frame expansions can be ... cost functions which we describe in Section Before we examine these cost functions we generalize first-order noise shaping to general frame expansions NOISE SHAPING...

Ngày tải lên: 22/06/2014, 23:20

... LDM and ADM performance, Ph.D thesis, University of Thessaloniki, Thessaloniki, Greece, 1988 [8] G S Tombras and C A Karybakas, “New adaptation algorithm for a two-digit adaptive delta modulation ... modulation system, ” International Journal of Electronics, vol 68, no 3, pp 343–349, 1990 [9] M A Aldajani and A H Sayed, A stable adaptive structure for delta modulation...

Ngày tải lên: 22/06/2014, 23:20

Ngày tải lên: 29/07/2014, 20:16

Ngày tải lên: 19/05/2015, 08:21

... combining the speed of the delta- gamma approach and the accuracy of Monte Carlo simulation By using delta- gamma approximation to guide the sampling of scenarios and through the combination of importance ... existing Delta- Gamma approach, the weaknesses of Delta- Gamma approximation has been improved Hence, the problem of calculating the VaR of non-linear...

Ngày tải lên: 03/10/2015, 20:59

... electric neutrality constraint In this paper, we considered the neutrality effects on the phase structure of the linear sigma model with the non- standard symmetry breaking term by means of the CornwallJackiw-Tomboulis ... the phase structure of the linear sigma model with the non- standard symmetry breaking term was studied by m...

Ngày tải lên: 30/10/2015, 20:54

... chuyển đổi tương tự sang số (DAC) độ xác(resolution) Bộ chuyển đổi Sigma Delta (SDM) đưa phương pháp chuyển đổi tín hiệu tương tự sang tín hiệu số (DAC) với độ xác cao Một chuyển đổi DAC sử dụng ... dụng Delta Sigma bao gồm: tổng bits tín hiệu số đưa vào, lọc tương tự, vòng hồi tiếp số, cộng sigma, cộng delta mạch so sánh Trong thực tế, thiết bị chuyên dụ...

Ngày tải lên: 31/12/2015, 16:04

... which adds an additional 0.2% error RA0 Port Leakage Current This leakage current is specified at 1nA at room temperature and 0.5 A (max) over temperature The leakage current from the port at RA0 ... that occur at the output of the comparator If this circuit were compared to the classical Delta- Sigma Converter, the integrator would be CINT The comparator is part of the controller, a...

Ngày tải lên: 11/01/2016, 11:33