Design and Analysis of all Optical Half Adder Based on Two Dimensional Photonic Crystals

Volume 6 Issue 4 October - December 2018

Research Paper

Design and Analysis of all Optical Half Adder Based on Two Dimensional Photonic Crystals

Rama Prabha K.*, Arun Kumar R. **, Robinson S. ***

*_*** Department of Electronics and Communication Engineering, Mount Zion College of Engineering and Technology, Pudukkottai, Tamilnadu, India.

Prabha, R. K., Kumar, R. A., and Robinson, S. (2018). Design and Analysis of all Optical Half Adder Based on Two Dimensional Photonic Crystals. i-manager’s Journal on Digital Signal Processing, 6(4), 27-33. https://doi.org/10.26634/jdp.6.4.16266

Abstract

In this paper the design and analysis of all optical half adder based on two dimensional photonic crystals is presented. A half adder is a type of adder, an electronic circuit that performs the addition of numbers. The half adder is able to add two single binary digits and provide the output plus a carry value. The proposed structure uses a hexagonal lattice with the point defect based structure. The structural design is small in size and it is compact in nature. These structural analysis of half adder mainly satisfies the logic function as A=1, B=0, A=0, B=1, A=1, B=1. The functional parameters of half adder such as normalized efficiency, bit rate, contrast ratio and the maximum delay time are calculated. The main application of half adder is to compute binary addition operation on two bits in integrated circuits.

VLSI Implementation of Low Power Image Transmission Employing Modified JSCC Scheme

Volume 6 Issue 4 October - December 2018

Research Paper

VLSI Implementation of Low Power Image Transmission Employing Modified JSCC Scheme

E. Kiruba Bethesthal Elizabeth*, S. P. Valan Arasu **

*-**Department of Electronics & Communication Engineering, VV College of Engineering, Tisaiyanvilai, Tirunelveli, Tamil Nadu, India.

Elizabeth, E, K, B., and Arasu, S. V.P. (2018). VLSI Implementation of Low Power Image Transmission Employing Modified JSCC Scheme. i-manager’s Journal on Digital Signal Processing, 6(4), 20-26. https://doi.org/10.26634/jdp.6.4.16263

Abstract

Forward error correction enables reliable one- way communication over noisy channels, by transmitting redundant data along with the message in order to detect and resolve errors at the receiver. Low-density parity-check (LDPC) codes achieve superior error-correction performance on Gaussian channels, however, their complex parity-check matrix structure introduces hardware implementation challenges. Quasi-cyclic (QC) low-density parity-check (LDPC) codes form an important subclass of LDPC codes. The encoding of these codes is traditionally done by multiplying the message vector with a generator matrix consisting of dense circulant submatrices. To reduce the encoder complexity a new scheme is introduced by making use of finite fourier transform .Making use of conjugacy constraints, low complexity architectures are developed for finite fourier and inverse transforms over subfields. In addition composite field arithmetic is exploited to eliminate the computations associated with message mapping and to reduce the complexity of Fourier transform. Since the proposed encoder has much improvement in power consumption and reduction in area than the conventional encoders, it is considered to be an efficient QC-LDPC encoder.

Design and Implementation of Neonate Health Condition Monitoring Device

Volume 6 Issue 4 October - December 2018

Research Paper

Design and Implementation of Neonate Health Condition Monitoring Device

Naregalkar Akshay Rangnath*

Department of EIE, VNR Vignana Jyothi Institute of Engineering & Technology, Hyderabad, India.

Rangnath, N. A. (2018). Design and Implementation of Neonate Health Condition Monitoring Device. i-manager’s Journal on Digital Signal Processing, 6(4), 14-19. https://doi.org/10.26634/jdp.6.4.16110

Abstract

As per the survey conducted by UNICEF in 2018, more than 6 lakh neonatal deaths occur in India which makes India to stand in the worst rank of 12 among 52 developing or undeveloped countries. Also, every day an average of 7,000 neonatal deaths occur worldwide. A new born baby can survive outside of the mother's womb with the help of baby incubator, provided the required environment to be maintained by incubator for premature baby to sustain. But in recent time, improper incubator design, short circuit in incubator, gas leakage inside the incubator has caused accidental deaths of premature babies. This paper deals with the low cost neonatal incubator system that monitors neonatal vital parameters like pulse rate, body temperature and incubator parameters like moisture, oxygen percentage and light intensity. These parameters are monitored and moisture, oxygen percentage and light intensity are controlled with proposed incubator. These parameters are also sent to the hospital staff through IoT (Internet of Things), so that immediate action can be initiated to take proper care of neonatal that ensures safety to the neonatal (infant's) life by maintaining incubator parameters as required. In this paper in addition to these, one more important feature is included that is phototherapy to treat jaundice in new born.

The Efficient Highway Management System: Illuminating Roads of Future

Volume 6 Issue 4 October - December 2018

Research Paper

The Efficient Highway Management System: Illuminating Roads of Future

Venu Gopal Reddipalli*, Anurag Korrm **, Aditya Vikram Shivhare ***, Vikas Dewangan ****, Aman Soni *****, Alka Mishra ******

*-****** Department of Electrical and Electronics, Bhilai Institute of Technology, Durg, Chhattisgarh, India.

Reddipalli, V. G., Korrm , A., Shivhare, A. V., Dewangan, V., Soni, A., and Mishra, A. (2018). The Efficient Highway Management System: Illuminating Roads of Future. i-manager’s Journal on Digital Signal Processing, 6(4), 7-13.https://doi.org/10.26634/jdp.6.4.15954

Abstract

The Efficient highway system here refers to upgraded version of the current Highway Management System. This paper presents a smart system model which is self-dependent, self-sustainable and can operate without any human intervention. The presented system is combination of four sub-systems. The aim of the first subsystem is to detect and compare the traffic density at traffic squares to maintain the continuous and smooth flow of traffic which solves the problem of current scenario due to predefined timer system. The second subsystem uses IR sensors and a night detector to manipulate street light when not required hence reduces the wastage of energy. Both above subsystems are controlled with the single Microcontroller. The third subsystem which contains charging points installing underneath the roads such that they can be charged wirelessly any time which overcome the drawback of electric vehicle to travel long time. The aim of fourth subsystem is to generate clean and green energy using speed bumps as a concept of Road Power Generation and solar panels which makes the system self-sustainability.

LabVIEW Based Real Time Monitoring System for Coal Mine Worker

Volume 6 Issue 4 October - December 2018

Research Paper

LabVIEW Based Real Time Monitoring System for Coal Mine Worker

Viswasmayee Priyadarsini*, Abhishek Verma**, Meghna Singh***, Shivani Netam ****, Dipty Chandrakar*****

*-***** Department of Electrical and Electronics Engineering, Bhilai Institute of Technology, Durg, Chhatisgarh, India.

Priyadarsini, V., Verma, A., Singh, M., Netam, S., and Chandrakar, D. (2018). LabVIEW Based Real Time Monitoring System for Coal Mine Worker. i-manager’s Journal on Digital Signal Processing, 6(4), 1-6. https://doi.org/10.26634/jdp.6.4.16096

Abstract

Coal mining is the process of extraction of coal. For this, the workers have to work in various dangerous conditions in the coal mine. Historically, coal mining has been a dangerous activity and the list of mining accidents is long one. A single, small accident can cause the death of the mine worker/workers. So, it is important to have a warning system. This research work deals with plan and expansion of a LabVIEW and microcontroller based monitoring system. In this project, a device used for continuous monitoring of the worker in coal mines is designed. In previous research work, the focus was on monitoring the environmental conditions of coal mines by using environmental sensors like gas sensor, humidity sensor , etc. But different person respond to the same environmental condition in different way. Therefore, the main focus of this study is to monitor the worker who has to deal with the abnormal conditions of coal mines. The research team used ECG sensor (AD8232) to note the electrical behaviour of heart. The device can monitor the heart rate, analyse the health condition of workers using LabVIEW software. The analysed data can be continuously monitored by the concerned authority in the control room. In case the worker is suffocating (in case of abnormal mining environment) then immediately a web page pop up. Labview continuously compares the sensed value with the predefined critical safety values and then gives the alert indication signal accordingly to the heartbeat rate of the worker.

MDT Based Infinite Impulse Response-Decimation Filter (IIR-DF) Design: An Efficient and Low Computational Cost Design Approach

Volume 6 Issue 3 July - September 2018

Research Paper

MDT Based Infinite Impulse Response-Decimation Filter (IIR-DF) Design: An Efficient and Low Computational Cost Design Approach

Dimple Sharma*, Vikas Soni**, Pankaj Jain***

* PG Scholar, Department of Electronics and Communication Engineering, Modi Institute of Technology, Kota, Rajasthan, India.

** Professor Cum Principal, Modi Institute of Technology, Kota, Rajasthan, India.

*** Associate Professor, Department of Electronics and Communication Engineering, Modi Institute of Technology, Kota, India.

Sharma, D., Soni, V., Jain, P. (2018). MDT Based Infinite Impulse Response-Decimation Filter (IIR-DF) Design: An Efficient and Low Computational Cost Design Approach, i-manager's Journal on Digital Signal Processing, 6(3), 33-44.https://doi.org/10.26634/jdp.6.3.15566

Abstract

In this paper, the Merged Delay Transformation approach has been employed in order to design Infinite Impulse Response-Decimation Filter (IIR-DF) and it has also been proved that this approach is an efficient approach for designing IIR-DF. In the proposed approach called as; MDT-IIR-DF, filtering followed by Sampling Rate Compression (decimation process) is obtained in a single stage instead of two separate stages as in conventional IIR Filters which in turn reduces the cost of computation in terms of number of multipliers per output samples. Two Examples have been included which show that the cost of computation for proposed approach; MDT-IIR-DF is low as compared to the cost of computation for various conventional Filters like: Polyphase FIR, Conventional IIR and Polyphase IIR, respectively. The proposed approach; MDT-IIR-DF is better computationally efficient in which the computational efficiency is increased by merging the M number of delay elements in recursive part together so that the current output can be directly computed from Mth old output. Magnitude and Phase Response of various MDT based IIR filters like; Butterworth, Chebyshev-I, Chebyshev-II and Elliptical flters have been compared with conventional Butterworth, Chebyshev-I, Chebyshev-II and Elliptical IIR filters (without MDT approach). The simulation results show that same magnitude and phase response for both (with and without MDT approach) filters i.e. the MDT based IIR-DF has close agreement with conventional IIR filter at low computational cost along with afficient architecture.

Railway Track Fault Monitoring System using Signal Processing Techniques

Volume 6 Issue 3 July - September 2018

Research Paper

Railway Track Fault Monitoring System using Signal Processing Techniques

B. Sridhar*, B. Sharmila Devi**, A. Lavanya***, B. Ghana Prasuna****, G. Prudhvi Raj*****

* Professor, Department of Electronics and Communication Engineering, Lendi Institute of Engineering and Technology, Vizianagaram, Andhra Pradesh, India.

**-***** UG Students, Department of Electronics and Communication Engineering, Lendi Institute of Engineering and Technology, Vizianagaram, Andhra Pradesh, India.

Sridhar, B., Devi, B. S., Lavanya, A., Prasuna, B. G., Raj, G, P. (2018). Railway Track Fault Monitoring System using Signal Processing Techniques, i-manager's Journal on Digital Signal Processing, 6(3), 24-32. https://doi.org/10.26634/jdp.6.3.15423

Abstract

This paper presents railway track fault monitoring approach using signal processing techniques operator-based on signal separation. The measured vibration signal is first pre-processed using the Kalman filtering to filter the noise imposed on the signal. A specific band of frequency is identified using Finite Impulse Response (FIR) filter then an operator-based signal separation approach, called null space pursuit (NSP), is applied to decomposing the signal into a series of subcomponents and residues in accordance with their characteristics. Subsequently, the selected subcomponent with the maximum kurtosis value is analyzed by the envelop spectrum to identified potential fault-related characteristic frequency components. Experimental studies from the signals observed from railway track during the motion of the train have verified the effectiveness of the present approach for railway track fault monitoring system.