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Ranjan Acharyya is listed as Research Scientist |Applied mathematical specialist | Electrical Engineer | Data Scientist at Callaghan Innovation, a company with 392 employees, based in Lower Hutt, Wellington, New Zealand. AeroLeads shows a matched LinkedIn profile for Ranjan Acharyya.
Ranjan Acharyya previously worked as Environmental Health Safety Coordinator at Callaghan Innovation and Senior Research Scientist at Callaghan Innovation. Ranjan Acharyya holds Ph.D, Electrical Engineering from Florida Institute Of Technology.
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I am an experienced and innovative researcher and scientist with a Ph.D. in signal processing, known for developing cutting-edge algorithms and mathematical models that address complex challenges in the field. My expertise includes the pioneering application of Rough Path Theory in signal processing, where I have successfully demonstrated its potential by enhancing the detection of targets in noisy environments and performing noise removal for SONAR data.With a deep-rooted background in signal processing and a passion for innovation, I am dedicated to advancing the field by developing groundbreaking algorithms and applying them in both industrial and commercial contexts.
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New Zealand
Identify appropriate vendor to carry out air monitoring of GIQ buildings, liaise with building occupants, set up air monitoring programme,,provide reports and update ELT on status of air quality, develop improvement action plan as required.
· The principle of Rough path theory has been applied into the core signal processing area. The novel algorithm is developed to detect a target which would otherwise be hidden under a sidelobe. The concepts from Rough Path theory can be borrowed to improve SNR for multidimensional system. This link shows an example.
· Implemented a time frequency masking algorithm for extraction of fetal heartbeat using noninvasive technique. The algorithm uses the sparseness of data in the time-frequency plane. The separation of the desired signal was also performed using Independent Component analysis based on maximization of the higher order statistics.· Designed a filter to clean.
· Developed a classifier using parallel Radial Basis Function (RBF) Neural Network bank for classification of man-made signals linked to military activities using Infrasound data. A comparison of classification performance among Support Vector Machine (SVM), HMM and RBF is made for Infrasound data.· Enhanced the performance of the RBF based classifier.
· Developed mathematical model to predict the resonance of structures subjected to longitudinal infrasound waves. Utilized MATLAB for implementation. Finite element software, FEMLAB, is used for validation.· Studied the resonance behavior of pipe under different terminating conditions. Appropriate mathematical forms of the Boundary conditions were.
· Implemented Independent Component Analysis (I.C.A.) algorithm in wavelet domain. The algorithm can separate instantaneous as well as artificially convolved speech sources. Information maximization principle and feedback network architecture is utilized. Adaptive weight updating is based on maximum information flow through the network.· Developed a novel.
· Designed a voice activity detector (VAD) based on MFCC. Implemented the algorithm in C and MATLAB.· Developed speech recognition algorithm using MFCC and DTW for real time applications· Implemented an algorithm for generating Mel Frequency Cepstral Coefficient (MFCC) from continuous speech signals in MATLAB and C.
Other employees you can reach at callaghaninnovation.govt.nz. View company contacts for 392 employees →
Shane Dooley
Colleague at Callaghan InnovationAuckland, Auckland, New Zealand, New Zealand
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Angus Tan
Colleague at Callaghan InnovationWellington, Wellington, New Zealand, New Zealand
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Maria Protopopova
Colleague at Callaghan InnovationAuckland, Auckland, New Zealand, New Zealand
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Theunis K.
Colleague at Callaghan InnovationChristchurch, Canterbury, New Zealand, New Zealand
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Damian Ngata
Colleague at Callaghan InnovationAuckland, Auckland, New Zealand, New Zealand
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Jennifer Hull
Colleague at Callaghan InnovationNew Zealand, New Zealand
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Richard Quin
Colleague at Callaghan InnovationWellington, New Zealand, New Zealand
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Rosie Torbit
Colleague at Callaghan InnovationNew Zealand, New Zealand
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Shae Parsons
Colleague at Callaghan InnovationAuckland, Auckland, New Zealand, New Zealand
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Melissa Kupa
Colleague at Callaghan InnovationWellington, New Zealand, New Zealand
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Quick answers generated from the profile data available on this page.
Ranjan Acharyya works for Callaghan Innovation.
Ranjan Acharyya is listed as Research Scientist |Applied mathematical specialist | Electrical Engineer | Data Scientist at Callaghan Innovation.
Ranjan Acharyya is based in Lower Hutt, Wellington, New Zealand while working with Callaghan Innovation.
Ranjan Acharyya has worked for Callaghan Innovation and Florida Institute Of Technology.
Ranjan Acharyya's colleagues at Callaghan Innovation include Shane Dooley, Angus Tan, Maria Protopopova, Theunis K., and Damian Ngata.
You can use AeroLeads to view verified contact signals for Ranjan Acharyya at Callaghan Innovation, including work email, phone, and LinkedIn data when available.
Ranjan Acharyya holds Ph.D, Electrical Engineering from Florida Institute Of Technology.
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