Sunita Ugale - Academia.edu (original) (raw)

Publications by Sunita Ugale

Advances in Computing, Communication and Control, Book Chapter, Springer, January 2013, pp. 439-443, , Jan 2013

We report here for the first time the fabrication and characterization of mechanically induced ul... more We report here for the first time the fabrication and characterization of mechanically induced ultralong period fiber gratings (MULPFG) with period size up to several millimeters. In these gratings the coupling of the fundamental guided core mode takes place with cladding modes of high diffraction orders.The transmission characteristic of grating with different external applied pressure has been experimentally verified.

Papers by Sunita Ugale

International journal of engineering research and technology, Jun 30, 2021

International Journal of Vehicle Safety, 2021

Communications in Computer and Information Science, 2013

We report here for the first time the fabrication and characterization of mechanically induced ul... more We report here for the first time the fabrication and characterization of mechanically induced ultralong period fiber gratings (MULPFG) with period size up to several millimeters. In these gratings the coupling of the fundamental guided core mode takes place with cladding modes of high diffraction orders. The transmission characteristic of grating with different external applied pressure has been experimentally verified.

Model Driven Engineering (MDE) is gaining popularity as an alternative to the code-centric softwa... more Model Driven Engineering (MDE) is gaining popularity as an alternative to the code-centric software development approach. Model Transformation (MT) is one of the main components of MDE. MT can be visualized as a program with models as inputs. Model evaluation and processing is automated by a Model Transformation tool. In this paper, we walk through the terminologies involved in MT and elaborate the benefits of MT with practical usage scenarios. The paper highlights the most recent challenges faced in the process to make model transformation more sophisticated. The intent of the paper is to portray a complete picture of model transformation in a way to relate the practical implementations with respect to the theoretical aspects of MT. The paper concludes by putting lights on some of the current trends in the field and the areas in model transformation where significant contribution is the needed.

paper presents the modeling and characterization of an Apodized optical fiber Bragg grating for m... more paper presents the modeling and characterization of an Apodized optical fiber Bragg grating for maximum reflectivity and minimum side lobe power wastage and narrow spectral response. The modeling is based upon coupled mode theory together with transfer matrix method. This matrix approach is effective at treating a single grating as a series of separate gratings each having reduced overall length and different pitch lengths, and describing each with its own T-matrix. FBG sensors are based on the fact that Bragg wavelength changes with change in pitch of the grating and the change in refractive index. Thus, any physical parameter which cause change in above mentioned parameters can be sensed using FBG. In optical sensing, the broad spectral response can result in poor sensitivity. In order to improve and to some extent to tailor the spectral response of FBG length, refractive index change, apodization and FWHM is optimized based upon maximum reflectivity criteria.

As per the high speed requirement in modern vehicle, Controller Area Network (CAN) architecture h... more As per the high speed requirement in modern vehicle, Controller Area Network (CAN) architecture has been implemented. In order to reduce more numbers of wiring complexity for point to point connection in vehicle automation, CAN is suggested for data communication media within the vehicle environment. CAN have advantage of high speed communication & increased flexibility. This paper describes the ARM7 based design and implementation of CAN Bus prototype for vehicle automation & its advantages with respect to traditional protocol interface for vehicle automation like LIN, Zigbee, Flexray.

This paper presents the modeling and characterization of an optical fiber grating for maximum ref... more This paper presents the modeling and characterization of an optical fiber grating for maximum reflectivity, minimum side lobe power wastage. Grating length and refractive index profile are the critical parameters in contributing to performance of fiber Bragg grating. The reflection spectra and side lobes strength were analyzed with different lengths and different refractive index profiles. Apodization techniques are used to get optimized reflection spectra. The simulations are based on solving coupled mode equations by transfer matrix method that describes the interaction of guided modes.

This paper introduces a design aspects of low power phase locked loop using VLSI technology.The p... more This paper introduces a design aspects of low power phase locked loop using VLSI technology.The phase locked loop is designed using latest 45nm process technology parameters, which in turn offers high speed performance at low power. The main quality related to the 45nm technology such as the high-k gate oxide ,metal-gate and very low-k interconnect dielectric described. Keywords— Phase locked loop (PLL), voltage control oscillator (VCO), 45nm technology, Very large scale integration (VLSI) technology, low power.

processing algorithm included multiplication as its processing heart. In case of signal and image... more processing algorithm included multiplication as its processing heart. In case of signal and image processing, it mostly used functional unit. In this review paper we are introducing logically new, fast and more efficient multiplication algorithm that seem to fulfilled fast processing requirement. This paper introduces how effectively we can use barrel shifter for implementation of multiplication method. Further work will carried comparative study of different multiplier with respect to some parameters like cost, power consumption, area and speed. For implementation and parametric analysis, we are using XC3S400 FPGA hardware platform, VHDL coding language for hardware description. Xilinx ISE-simulation tool has many inbuilt compatible tools for parameter analysis like XPE for power estimation that we are using here. Paper comprises description of current scenario, existed multiplication methods and our proposed algorithm.

Volume 1, Issue 4 November December 2012 Page 145 Abstract: An electronic nose is an intelligent ... more Volume 1, Issue 4 November December 2012 Page 145 Abstract: An electronic nose is an intelligent system used to monitor the gases. The system is designed to detect the pollution at vehicle exhaust. The system informs the user about the concentration of CO and HC. It also displays whether pollution is under control or not. Commercial gas sensors having low power consumption are used in the design. For data acquisition, a micro-controller is used. Data processing is done using supervised learning of Artificial Neural Network (ANN). The results of ANN training are given, which is obtained using MATLAB. The system is calibrated using the actual field readings of PUC machines available. Five Different ANN training methods are also compared based on errors. GUI developed displays concentrations of CO and HC, a conclusive message and bars indicating present gas level.

International Journal of Computer Applications, Sep 15, 2016

Many of the today"s real time signal processing algorithm included multiplication as its processi... more Many of the today"s real time signal processing algorithm included multiplication as its processing heart. In case of signal and image processing, it mostly used functional unit. In this paper we are simulating different multiplication algorithm with their effective architecture. Also paper introducing new multiplication technique using barrel shifter which gives some sort of modification in previously described shift and add multiplication algorithm. Research targeting mainly four algorithms as Vedic vertical crosswise multiplication algorithm, Array multiplier, Shift and add multiplier, Wallace tree multiplier. Further work will carried comparative study of different multiplier with respect to some parameters like logical resources used, delay, power consumption and area. For implementation and parametric analysis, experimental setup uses sparten-3 XC3S400 FPGA as a hardware platform, VHDL coding language for hardware description. Xilinx ISEsimulation tool has many inbuilt compatible facility for parameter analysis like XPE for power analysis. Finally Paper comprises simulation results for 8-bit, 16-bits and 32-bits each of above mentioned multiplier.

International Journal of Computer Applications, 2016

As the complexity of vehicle component increases we need efficient data communication media as CA... more As the complexity of vehicle component increases we need efficient data communication media as CAN. This system consists of different application in Vehicle automation using CAN. SAM3X8E cortex M3 processor as Master & slave processor. The applications are Rain detection module & LDR input for automatic Fog light ON-OFF & wiper movement, direction change of front light using different velocity input..

International Journal of Engineering Science, 2010

This paper presents the modeling and characterization of an optical fiber grating for maximum ref... more This paper presents the modeling and characterization of an optical fiber grating for maximum reflectivity, minimum side lobe power wastage. Grating length and refractive index profile are the critical parameters in contributing to performance of fiber Bragg grating. The reflection spectra and side lobes strength were analyzed with different lengths and different refractive index profiles. Apodization techniques are used to get optimized reflection spectra. The simulations are based on solving coupled mode equations by transfer matrix method that describes the interaction of guided modes.

2015 International Conference on Computer, Communication and Control (IC4), 2015

2015 International Conference on Computer, Communication and Control (IC4), 2015

Optics and Photonics Journal, Jul 15, 2013

We have proposed and demonstrated experimentally a novel and simple pressure sensor based on mech... more We have proposed and demonstrated experimentally a novel and simple pressure sensor based on mechanically induced long period optical fiber gratings. We report here for the first time to our knowledge the characterization of mechanically induced long period fiber gratings in novel multimode-singlemode-multimode fiber structure. The MLPFG induced in single mode fiber and multimode fibers are studied separately and the results are compared with MLPFG induced in MSM fiber structure. MLPFG in MSM structure has much greater sensitivity. We have obtained maximum transmission loss peak of around 18 dB, and the sensitivity of pressure sensor is 8 dB/Kg.

Journal of Software, 2015

International Journal of Computer Applications, 2015

Advances in Computing, Communication and Control, Book Chapter, Springer, January 2013, pp. 439-443, , Jan 2013

We report here for the first time the fabrication and characterization of mechanically induced ul... more We report here for the first time the fabrication and characterization of mechanically induced ultralong period fiber gratings (MULPFG) with period size up to several millimeters. In these gratings the coupling of the fundamental guided core mode takes place with cladding modes of high diffraction orders.The transmission characteristic of grating with different external applied pressure has been experimentally verified.

International journal of engineering research and technology, Jun 30, 2021

International Journal of Vehicle Safety, 2021

Communications in Computer and Information Science, 2013

We report here for the first time the fabrication and characterization of mechanically induced ul... more We report here for the first time the fabrication and characterization of mechanically induced ultralong period fiber gratings (MULPFG) with period size up to several millimeters. In these gratings the coupling of the fundamental guided core mode takes place with cladding modes of high diffraction orders. The transmission characteristic of grating with different external applied pressure has been experimentally verified.

Model Driven Engineering (MDE) is gaining popularity as an alternative to the code-centric softwa... more Model Driven Engineering (MDE) is gaining popularity as an alternative to the code-centric software development approach. Model Transformation (MT) is one of the main components of MDE. MT can be visualized as a program with models as inputs. Model evaluation and processing is automated by a Model Transformation tool. In this paper, we walk through the terminologies involved in MT and elaborate the benefits of MT with practical usage scenarios. The paper highlights the most recent challenges faced in the process to make model transformation more sophisticated. The intent of the paper is to portray a complete picture of model transformation in a way to relate the practical implementations with respect to the theoretical aspects of MT. The paper concludes by putting lights on some of the current trends in the field and the areas in model transformation where significant contribution is the needed.

paper presents the modeling and characterization of an Apodized optical fiber Bragg grating for m... more paper presents the modeling and characterization of an Apodized optical fiber Bragg grating for maximum reflectivity and minimum side lobe power wastage and narrow spectral response. The modeling is based upon coupled mode theory together with transfer matrix method. This matrix approach is effective at treating a single grating as a series of separate gratings each having reduced overall length and different pitch lengths, and describing each with its own T-matrix. FBG sensors are based on the fact that Bragg wavelength changes with change in pitch of the grating and the change in refractive index. Thus, any physical parameter which cause change in above mentioned parameters can be sensed using FBG. In optical sensing, the broad spectral response can result in poor sensitivity. In order to improve and to some extent to tailor the spectral response of FBG length, refractive index change, apodization and FWHM is optimized based upon maximum reflectivity criteria.

As per the high speed requirement in modern vehicle, Controller Area Network (CAN) architecture h... more As per the high speed requirement in modern vehicle, Controller Area Network (CAN) architecture has been implemented. In order to reduce more numbers of wiring complexity for point to point connection in vehicle automation, CAN is suggested for data communication media within the vehicle environment. CAN have advantage of high speed communication & increased flexibility. This paper describes the ARM7 based design and implementation of CAN Bus prototype for vehicle automation & its advantages with respect to traditional protocol interface for vehicle automation like LIN, Zigbee, Flexray.

This paper presents the modeling and characterization of an optical fiber grating for maximum ref... more This paper presents the modeling and characterization of an optical fiber grating for maximum reflectivity, minimum side lobe power wastage. Grating length and refractive index profile are the critical parameters in contributing to performance of fiber Bragg grating. The reflection spectra and side lobes strength were analyzed with different lengths and different refractive index profiles. Apodization techniques are used to get optimized reflection spectra. The simulations are based on solving coupled mode equations by transfer matrix method that describes the interaction of guided modes.

This paper introduces a design aspects of low power phase locked loop using VLSI technology.The p... more This paper introduces a design aspects of low power phase locked loop using VLSI technology.The phase locked loop is designed using latest 45nm process technology parameters, which in turn offers high speed performance at low power. The main quality related to the 45nm technology such as the high-k gate oxide ,metal-gate and very low-k interconnect dielectric described. Keywords— Phase locked loop (PLL), voltage control oscillator (VCO), 45nm technology, Very large scale integration (VLSI) technology, low power.

processing algorithm included multiplication as its processing heart. In case of signal and image... more processing algorithm included multiplication as its processing heart. In case of signal and image processing, it mostly used functional unit. In this review paper we are introducing logically new, fast and more efficient multiplication algorithm that seem to fulfilled fast processing requirement. This paper introduces how effectively we can use barrel shifter for implementation of multiplication method. Further work will carried comparative study of different multiplier with respect to some parameters like cost, power consumption, area and speed. For implementation and parametric analysis, we are using XC3S400 FPGA hardware platform, VHDL coding language for hardware description. Xilinx ISE-simulation tool has many inbuilt compatible tools for parameter analysis like XPE for power estimation that we are using here. Paper comprises description of current scenario, existed multiplication methods and our proposed algorithm.

Volume 1, Issue 4 November December 2012 Page 145 Abstract: An electronic nose is an intelligent ... more Volume 1, Issue 4 November December 2012 Page 145 Abstract: An electronic nose is an intelligent system used to monitor the gases. The system is designed to detect the pollution at vehicle exhaust. The system informs the user about the concentration of CO and HC. It also displays whether pollution is under control or not. Commercial gas sensors having low power consumption are used in the design. For data acquisition, a micro-controller is used. Data processing is done using supervised learning of Artificial Neural Network (ANN). The results of ANN training are given, which is obtained using MATLAB. The system is calibrated using the actual field readings of PUC machines available. Five Different ANN training methods are also compared based on errors. GUI developed displays concentrations of CO and HC, a conclusive message and bars indicating present gas level.

International Journal of Computer Applications, Sep 15, 2016

Many of the today"s real time signal processing algorithm included multiplication as its processi... more Many of the today"s real time signal processing algorithm included multiplication as its processing heart. In case of signal and image processing, it mostly used functional unit. In this paper we are simulating different multiplication algorithm with their effective architecture. Also paper introducing new multiplication technique using barrel shifter which gives some sort of modification in previously described shift and add multiplication algorithm. Research targeting mainly four algorithms as Vedic vertical crosswise multiplication algorithm, Array multiplier, Shift and add multiplier, Wallace tree multiplier. Further work will carried comparative study of different multiplier with respect to some parameters like logical resources used, delay, power consumption and area. For implementation and parametric analysis, experimental setup uses sparten-3 XC3S400 FPGA as a hardware platform, VHDL coding language for hardware description. Xilinx ISEsimulation tool has many inbuilt compatible facility for parameter analysis like XPE for power analysis. Finally Paper comprises simulation results for 8-bit, 16-bits and 32-bits each of above mentioned multiplier.

International Journal of Computer Applications, 2016

As the complexity of vehicle component increases we need efficient data communication media as CA... more As the complexity of vehicle component increases we need efficient data communication media as CAN. This system consists of different application in Vehicle automation using CAN. SAM3X8E cortex M3 processor as Master & slave processor. The applications are Rain detection module & LDR input for automatic Fog light ON-OFF & wiper movement, direction change of front light using different velocity input..

International Journal of Engineering Science, 2010

This paper presents the modeling and characterization of an optical fiber grating for maximum ref... more This paper presents the modeling and characterization of an optical fiber grating for maximum reflectivity, minimum side lobe power wastage. Grating length and refractive index profile are the critical parameters in contributing to performance of fiber Bragg grating. The reflection spectra and side lobes strength were analyzed with different lengths and different refractive index profiles. Apodization techniques are used to get optimized reflection spectra. The simulations are based on solving coupled mode equations by transfer matrix method that describes the interaction of guided modes.

2015 International Conference on Computer, Communication and Control (IC4), 2015

2015 International Conference on Computer, Communication and Control (IC4), 2015

Optics and Photonics Journal, Jul 15, 2013

We have proposed and demonstrated experimentally a novel and simple pressure sensor based on mech... more We have proposed and demonstrated experimentally a novel and simple pressure sensor based on mechanically induced long period optical fiber gratings. We report here for the first time to our knowledge the characterization of mechanically induced long period fiber gratings in novel multimode-singlemode-multimode fiber structure. The MLPFG induced in single mode fiber and multimode fibers are studied separately and the results are compared with MLPFG induced in MSM fiber structure. MLPFG in MSM structure has much greater sensitivity. We have obtained maximum transmission loss peak of around 18 dB, and the sensitivity of pressure sensor is 8 dB/Kg.

Journal of Software, 2015

International Journal of Computer Applications, 2015

SAE Technical Paper Series, 2015