A5027766132- Speech and Audio Processing
- Antenna Design and Analysis
- Advanced Adaptive Filtering Techniques
- Microwave Engineering and Waveguides
- Speech Recognition and Synthesis
- Wireless Body Area Networks
- Blind Source Separation Techniques
- Sentiment Analysis and Opinion Mining
- Structural Health Monitoring Techniques
- Advanced Data Compression Techniques
- Emotion and Mood Recognition
- Digital Communication and Language
- Brain Tumor Detection and Classification
- Artificial Intelligence in Healthcare
- Cutaneous Melanoma Detection and Management
- Energy Harvesting in Wireless Networks
- Image Processing and 3D Reconstruction
- Face and Expression Recognition
- Music and Audio Processing
- Ultra-Wideband Communications Technology
- Text and Document Classification Technologies
- Spam and Phishing Detection
- Advanced MIMO Systems Optimization
- Astronomical Observations and Instrumentation
- Advanced Research in Science and Engineering
Aditya Birla (India)
2023-2025
Cochin University of Science and Technology
2019
Yes Technologies (United States)
2019
Jawaharlal Nehru Technological University, Kakinada
2019
A novel compact-slotted four element multiple input output (MIMO) planar monopole antenna is proposed for 5G mmWave N257/N258 and N262 band applications. The antenna, with dimensions of 12 mm × 11.6 0.508 (1.036λo ×1.001λo×0.043λo where λo computed at lowest cutoff frequency), fabricated on a Rogers RT/duroid 5880 (tm) substrate relative permittivity 2.2 dielectric loss tangent 0.0009. suggested consists U-shaped radiating elements (patches) top the material slotted ground bottom. are fed by...
This paper introduces a compact Multiple Input Output (MIMO) Ultrawideband (UWB) antenna seamlessly integrated with the Ku band, tailored for wireless communication applications. The MIMO employs octagonal radiators, crafted from tapered microstrip line-fed rectangular patch, etched on an economically efficient FR4 substrate measuring 40 × 23 mm2. configuration is achieved by introducing patch to central radiator, while parasitic stubs are strategically employed mitigate coupling among...
A novel miniatured reconfigurable antenna for wireless applications using defective ground structure is proposed and studied.This generates eight different frequencies, operating at 2 GHz (IMT), 2.3 (UMTS), 2.5 (Wi-Fi), 2.7 (Radio astronomy), 2.9 (Weather radar), 4.2 altimeter), 4.4 determination), 5.5 (Wi-MAX) while maintaining overall compact size of 24 × 33 1.6 mm 3 an FR-4 substrate having a permittivity ε r = 4.4.The consists three switches in the slots patch along with rectangular...
Sentiment Analysis has gained a lot of popularity in the last few years. It is processes identifying underlying sentiment comment, review or document. document sentence generally falls under three categories namely positive, neutral negative. This paper surveyed literature relating to supervised algorithms for classification analysis. The contribution includes extensive survey and related analysis based on algorithm used application area. We have then performed comparative study five popular...
This paper presents a method for speech enhancement to predict quality in presence of highly non-stationary scenarios using basic wiener filtering frequency domain with an adaptive gain function under eight different noises at three ranges input SNR. Its performance is evaluated terms objective measures like LPC based spectral distortion are Cepstrum Distance, Itakura Saito and Log Likelihood Ratio. was tested Noizeous database, its were compared against subtractive type algorithms it shows...
This paper presents a method to reduce the musical noise encountered with most of frequency domain speech enhancement algorithms.Musical Noise is phenomenon which occurs due random spectral speaks in each frame, because large variance and inaccurate estimate spectra noisy signals.In order get low estimate, this uses based on wavelet thresholding multitaper spectrum combined estimation algorithm, estimates average past present according predetermined weighting factor noise.To evaluate...
This paper mainly studies Multi Band Spectral Subtraction (MBSS) for speech enhancement based on the spectrum representation in frequency domain with three different scales(linear, log, mel) and their effect performance measures presence of additive nonstationary noise at ranges input SNR.Since is non-stationary signal, distribution nonuniform i.e few components are affected severely than others.A common method to restore original by suppressing back ground noise.Multi one among techniques...
Astronomy is the exploration of celestial objects, for instance, moon, planets, stars, universes and most part everything beyond Earth's atmosphere.In past, astronomy has been used to measure time, mark seasons, navigate vast oceans.It inspires us with attractive images promises answers big questions.It acts as a window into immense size complexity space, putting Earth perspective promoting global citizenship pride in our home planet.Astronomical hold an abundance knowledge about universe...
This paper provides an efficient approach for text-independent speaker identification using the Inverted Mel-frequency Cepstral Coefficients as feature set and Finite Doubly Truncated Gaussian Mixture Model (FDTGMM).Over years, Mel-Frequency (MFCC), modeled on human auditory system, has been used a standard acoustic speech related applications.Furthermore, it shown that Melfrequency (IMFCC) is also useful Speaker identification, which contains information complementary to MFCC as, covers...