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New Electronically-Controllable Lossless Synthetic Floating Inductance Circuit Using Single VDCC

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Circuits and Systems 2014年第1期5卷 13-17页

作者： dinesh prasad Javed Ahmad Department of Electronics and Communication Engineering Maharaja Agrasen Institute of Technology Rohini New Delhi India Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India

A new electronically-controllable lossless floating inductance (FI) circuit (without any matching condition) has been presented, which employs only one Voltage Differencing Current Conveyor (VDCC), one grounded capacitor and one grounded resistor. The main aim of the paper is to present a new floating inductance simulator using single active device with minimum passive components. The proposed floating inductance simulator can be electronically controllable by changing the bias current. The workability of the new presented FI circuit has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.

关键词： VDCC Floating Inductance Simulation Filters

VDTA-Based Wave Active Filter

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Circuits and Systems 2014年第5期5卷 124-131页

作者： Harshvardhan Singh Kunal Arora dinesh prasad Department of Applied Sciences and Humanities Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India

In this paper we present a wave active filter based on Voltage Differencing Transconductance Amplifiers (VDTAs). The synthesis of active filters basically based on processing of wave quantities. The wave method is presented for basic building blocks of active filters i.e. a series inductor and parallel capacitor through which realization of various active circuits is made by appropriate connections. The proposed wave active filter is verified by realizing a 4th order low pass Butterworth filter using SPICE simulation with 0.18 μm TSMC CMOS technology parameters.

关键词： Voltage Differencing Transconductance Amplifier Wave Active Filter Voltage-Mode Filter

Grounded and Floating Inductance Simulation Circuits Using VDTAs

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Circuits and Systems 2012年第4期3卷 342-347页

作者： dinesh prasad D. R. Bhaskar Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India

New electronically-controllable lossless grounded and floating inductance simulation circuits have been proposed employing Voltage Differencing Transconductance Amplifiers (VDTA). The proposed grounded inductance (GI) circuit employs a single VDTA and one grounded capacitor whereas the floating inductance (FI) circuit employs two VDTAs and one grounded capacitor. The workability of the new circuits has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.

关键词： VDTA Inductance Simulation Filters

Electronically-Controllable Grounded-Capacitor-Based Grounded and Floating Inductance Simulated Circuits Using VD-DIBAs

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Circuits and Systems 2013年第5期4卷 422-430页

作者： Data Ram Bhaskar dinesh prasad Kanhaiya Lal Pushkar Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India Department of Electronics and Communication Engineering Maharaja Agrasen Institute of Technology Rohini New Delhi India

New Voltage Differencing Differential Input Buffered Amplifier (VD-DIBA) based lossless grounded and floating inductance simulation circuits have been proposed. The proposed grounded simulated inductance circuit employs a single VD-DIBA, one floating resistance and one grounded capacitor. The floating simulated inductance (FI) circuits employ two VD-DIBAs with two passive components (one floating resistance and one grounded capacitor). The circuit for grounded inductance does not require any realization conditions where as in case of floating inductance circuits, a single matching condition is needed. Simulation results demonstrating the applications of the new simulated inductors using CMOS VD-DIBAs have been included to confirm the workability of the new circuits.

关键词： VD-DIBA Inductance Simulation Filters

New Current Mode Lossy Integrator Employing CDDITA

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Circuits and Systems 2018年第8期9卷 117-123页

作者： Kuldeep Panwar dinesh prasad Mayank Srivastava Zainab Haseeb Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India Department of Electronics and Communication Engineering NIT Jamshedpur India

This work presents a novel current-mode (CM) lossless integrator that uses one current differencing differential input transconductance amplifier (CDDITA) and one grounded capacitor. The configuration based on single active element has several advantages from the aspect of monolithic integration, few are: reduced power consumption, chip miniaturization. Employment of grounded capacitor is also beneficial for monolithic integration. Specifying some of the key features of integrator proposed are: 1) purely resistorless, 2) electronically tunable, 3) current output available at the port having high impedance, and 4) excellent performance under non-ideal conditions. So, a resister-less current mode lossy integrator with electronic control employing single CDDITA has been proposed in this paper. The verification of workability of the proposed current mode integrator is well explained by the help of SPICE simulations using TSMC CMOS 0.18 μm technology node.

关键词： Current Differencing Differential Input Transconductance Amplifier Lossy Integrator Electronic Tunability Grounded Capacitor

Electronically Controllable Fully-Uncoupled Explicit Current-Mode Quadrature Oscillator Using VDTAs and Grounded Capacitors

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Circuits and Systems 2013年第2期4卷 169-172页

作者： dinesh prasad Mayank Srivastava Data Ram Bhaskar Department of Electronics and Communication Engineering Amity School of Engineering and Technology Amity University Noida India Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India

An electronically controllable fully uncoupled explicit current-mode quadrature oscillator employing Voltage Differencing Transconductance Amplifiers (VDTAs) as active elements has been presented. The proposed configuration employs two VDTAs along with grounded capacitors and offers the following advantageous features 1) fully and electronically independent control of condition of oscillation (CO) and frequency of oscillation (FO);2) explicit current-mode quadrature oscillations;and 3) low active and passive sensitivities. The workability of proposed configuration has been demonstrated by PSPICE simulations with TSMC CMOS 0.18 μm process parameters.

关键词： VDTA Quadrature Oscillator Current-Mode Circuits

Universal Current-Mode Biquad Filter Using a VDTA

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Circuits and Systems 2013年第1期4卷 29-33页

作者： dinesh prasad Data Ram Bhaskar Mayank Srivastava D/O Electronics and Communication Engineering Amity School of Engineering and Technology Amity University Noida India Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India

This paper presents a new current-mode single input multi output (SIMO) type biquad employing one voltage differencing transconductance amplifier (VDTA), two grounded capacitors and a single grounded resistor. The configuration realizes all basic filter functions (i.e. Low Pass (LP), High Pass (HP), Band Pass (BP), Notch (BR) and All Pass (AP)). The natural frequency (ω0) and bandwidth (BW) are independently tunable. The workability of proposed configuration has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.

关键词： Current Mode Filter Voltage Differencing Transconductance Amplifier

基于Raspberry的智能家居传感器网络集成研究

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基于Raspberry的智能家居传感器网络集成研究

作者： SAH dinesh prasad（迪奈世）哈尔滨工业大学

学位级别：硕士

随着科学技术的普及,在家中我们与物体的交互方式以及物体和物体的交互方式正在发生着变化,我们的家正在向着智能家居转变。在过去这些年里,许多新技术都应用到了我们的家中,智能手机、智能手表、扫地机器人都变成了现实并改善了我们的... 详细信息

随着科学技术的普及,在家中我们与物体的交互方式以及物体和物体的交互方式正在发生着变化,我们的家正在向着智能家居转变。在过去这些年里,许多新技术都应用到了我们的家中,智能手机、智能手表、扫地机器人都变成了现实并改善了我们的生活。家居自动化一直是一个令人兴奋的研究领域,目前已经取得了许多新的进展,物联网让我们的愿景成为现实。智能设备互连的网络称为物联网,我们时时刻刻都在使用着物联网。我们可以将智能家居设想为一个智能的、可动态配置的消费者设备,可以和人或其他设备进行交互。在这样一个动态的环境中,需要一种灵活且轻量级的中间件设备,它可以控制设备与外界进行通信。然而智能家居也是一项复杂的技术,它由不同厂商的智能设备组成,具有不同的配置标准和通信标准,这可能会产生子系统间异构的问题,因此需要一个中央管理系统来控制所有这些异构的设备。在本文中,我们使用Raspberry Pi作为用户和智能设备之间的中间件,允许用户以相同的方式控制这些异构设备。大多数智能家电都是通过昂贵而精密的设备来控制的,但本文使用的Raspberry Pi保持着相对简单的技术特点,具有廉价、可定制、可编程的特点,并支持大量的外设连接和网络通信。使用该技术,可以直接开发一个基于传感器网络单元的可以监控室内温湿度的系统。这种设计模式突出了Raspberry Pi灵活的特点以及广泛使用的可能性。

关键词：家居自动化 Raspberry Pi RESTful 传感器网络物联网

Pre-Processing Images of Public Signage for OCR Conversion

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Journal of Signal and Information Processing 2019年第1期10卷 1-11页

作者： Amber Khan Mariam Nida Usmani Nashrah Rahman dinesh prasad D/o Electronics & Communication Engineering Jamia Millia Islamia (JMI) New Delhi India

In this paper, we propose a novel method to enhance the OCR (Optical Character Recognition) readability of public signboards captured by smart-phone cameras—both outdoors and indoors, and subject to various lighting conditions. A distinct feature of our technique is the detection of these signs in the HSV (Hue, Saturation and Value) color space, done in order to filter out the signboard from the background, and correctly interpret the textual details of each signboard. This is then binarized using a thresholding technique that is optimized for text printed on contrasting backgrounds, and passed through the Tesseract engine to detect individual characters. We test out our technique on a dataset of over 200 images taken in and around the campus of our college, and are successful in attaining better OCR results in comparison to traditional methods. Further, we suggest the utilization of a method to automatically assign ROIs (Regions Of Interest) to detected signboards, for better recognition of textual information.

关键词： Image Processing HSV Binarization OCR