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Dubai, United Arab Emirates

Parthasarathy R.,Bits Pilani Dubai Campus | Kalaichelvi V.,Pilani Dubai Campus | Sundaram S.,Pilani Dubai Campus
2015 International Conference on Communication and Signal Processing, ICCSP 2015

Gas sensors have the issue of non linearity, low selectivity and cross sensitivity to other gases which cause a huge aberration from the expected results. These can be alleviated if sensors are integrated and studied. While Artificial Neural Network models are not accurate in identification of complex mixtures of gases, this is improved by using a fuzzy logic model for an array of gas sensors which identifies the presence and the concentration of gases efficiently. © 2015 IEEE. Source

Parthasarathy R.,Bits Pilani Dubai Campus | Hengen H.,Hengen Ingenieurbuero GbR | Nayak J.,Bits Pilani Dubai Campus
2015 International Conference on Communication and Signal Processing, ICCSP 2015

Automated measurement of depth information of any object from the images acquiredis a requirement in many industries. The object for which, the depth information is to be measured is exposed to an image sensor after illuminating it with a specific kind of pattern from a Digital Light Processing (DLP) Projector. A reconstruction algorithm is applied on the images acquired from the sensor, which will give a measure of the depth. The proposed setup and algorithm allows fast reconstruction and filtering of spatial data. The result shows that, the depth of the object calculated from the reconstruction algorithm almost matches the actual depth physically calculated on the object. © 2015 IEEE. Source

Sinha S.,Bits Pilani Dubai Campus | Lourde R.M.,Bits Pilani Dubai Campus | Sarma T.V.C.,National Atmospheric Research Laboratory
Proceeding - 2015 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications, ICRAMET 2015

The knowledge of wind velocities at different heights is critical for the study of atmospheric dynamics. Over the last three decades, wind profiler radars have been successfully deployed to obtain altitude profiles of wind velocities with a high temporal resolution. Wind Profilers are coherent pulsed Doppler radars operating in VHF or UHF bands. They estimate the wind velocity with the help of Doppler spectra obtained by analyzing the backscattered signal from the atmospheric radio refractive index fluctuations. As the backscattered signal is weak, accurate estimation of the wind velocity to higher heights require sophisticated signal processing methods and often contribution of human experts. Computation of moments by various statistical methods, fuzzy logic approach and neural network techniques have been reported by a few researchers, which have unique advantages and disadvantages with better performing techniques the mathematical complexity increases manifolds. This paper proposes a wind profile tracing algorithm which traces the wind profile by computationally simple method. The proposed method divides the Doppler spectra into sections of five range-bins each. Then it identifies prospective wind profile 'candidate traces'. Certain properties of the Doppler spectrum viz., signal power, spectral width and wind shear, have been parameterized and a 'cost function' with non-linear weights is designed. A trace with maximum cost function is selected and the profile is completed maintaining the continuity with the adjacent sections. This method is computationally much simpler compared to contemporary leading methods and shows very encouraging performance on the data of almost all atmospheric conditions. Due to low computational complexity, this method has a high potential for 'real-time automated' Doppler profile tracing. © 2015 IEEE. Source

Henry S.S.,Bits Pilani Dubai Campus | Kumar V.S.,Bits Pilani Dubai Campus
Proceedings of the 2013 International Conference on Current Trends in Information Technology, CTIT 2013

The primary purpose of this paper is to provide reachability between applications running on end hosts in MIPv4-MIPv6 coexistence phase. In this paper, we describe how to compute the reachability which a network, in this case MIPv4-MIPv6, provides from a snapshot of the configuration state from each of the routers. Reachability analysis of any network would be valuable for verifying the intent of the network designer, troubleshooting reachability problems, and performing 'what-if' analysis of failure scenarios. © 2013 IEEE. Source

Sen P.,Bits Pilani Dubai Campus | Vadivel S.,Bits Pilani Dubai Campus
Proceedings of SPIE - The International Society for Optical Engineering

Implementation of a novel indexing model for images with verified facial data is presented in this paper. This indexer uses histogram based clustering to select the skin color of the subject of the image, and then classify the image as such. Fuzzy based classification techniques are used to detect the skin tone of the images. © 2015 SPIE. Source

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