A new method for determination of instantaneous pitch frequency from speech signals. - Abhay Upadhyay; Ram Bilas Pachori (SP/SPE, 2015)

Instantaneous voiced/non-voiced detection in speech signals based on variational mode decomposition. - Abhay Upadhyay; Ram Bilas Pachori (J. Frankl. Inst., 2015)

An integrated alcoholic index using tunable-Q wavelet transform based features extracted from EEG signals for diagnosis of alcoholism. - Shivnarayan Patidar; Ram Bilas Pachori; Abhay Upadhyay; U. Rajendra Acharya (Appl. Soft Comput., 2017)

Determination of instantaneous fundamental frequency of speech signals using variational mode decomposition. - Abhay Upadhyay; Manish Sharma 001; Ram Bilas Pachori (Comput. Electr. Eng., 2017)

Automatic sleep stages classification based on iterative filtering of electroencephalogram signals. - Rajeev Sharma; Ram Bilas Pachori; Abhay Upadhyay (Neural Comput. Appl., 2017)

Accurate tunable-Q wavelet transform based method for QRS complex detection. - Ashish Sharma 007; Shivnarayan Patidar; Abhay Upadhyay; U. Rajendra Acharya (Comput. Electr. Eng., 2019)

Automated classification of hand movements using tunable-Q wavelet transform based filter-bank with surface electromyogram signals. - Anurag Nishad; Abhay Upadhyay; Ram Bilas Pachori; U. Rajendra Acharya (Future Gener. Comput. Syst., 2019)

A Nonparametric Approach for Multicomponent AM-FM Signal Analysis. - Abhay Upadhyay; Manish Sharma 001; Ram Bilas Pachori; Rajeev Sharma (Circuits Syst. Signal Process., 2020)

Automated diagnosis of muscle diseases from EMG signals using empirical mode decomposition based method. - Rahul Dubey; Mohit Kumar 009; Abhay Upadhyay; Ram Bilas Pachori (Biomed. Signal Process. Control., 2022)

Automated Variational Nonlinear Chirp Mode Decomposition for Bearing Fault Diagnosis. - Rahul Dubey; Rishi Raj Sharma; Abhay Upadhyay; Ram Bilas Pachori (IEEE Trans. Ind. Informatics, 2023)

Delta-γ Modeling of Wireless System Resilience in Multipath Fading and Interference Environments. - Deepak Upadhyay; Abhay Upadhyay; Kunj Bihari Sharma; Mridul Gupta; Nookala Venu (IC3I, 2024)

Dynamic Resource Allocation and Security Strategies in Cooperative Relaying Systems with Eavesdropping Threats. - Deepak Upadhyay; Kunj Bihari Sharma; Abhay Upadhyay; Mridul Gupta; Nookala Venu (WPMC, 2024)

Dynamic Q value wavelet transform for IF estimation and seizure detection via QT plane-CNN framework. - Amaya Rose Abraham; Anurag Nishad; Mihir Jaipuria; Abhay Upadhyay; Sudeep Baudha (EURASIP J. Adv. Signal Process., 2025)