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5 articles for “Autocorrelation”
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Second Wave COVID-19 Predictions and Forecasting of Confirmed Cases in West Bengal Using ARIMA Model
Abstract: Infection and death rates surged drastically during the second wave of the COVID-19 (called delta variant) in India, owing to the destructive virus. As our country's economic load makes it more difficult to control the measures and it is critical for states such as West Bengal to forecast future cases. The present study introduced a time series forecasting model aimed at predicting and forecasting the number of confirmed and active …
Published in Research and Reviews : A Journal of Immunology · Vol. 13, Issue 1, 2023 · pp. 1–8 Read article
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Orthogonal Thirty-Two Phase Sequence Sets Design
Abstract: In using orthogonal signals, a multi-input, multi-output (MIMO) radar system and a spread spectrum communication system can improve operating efficiency. The usage of polyphase coded signals as pulse compression sequences sets is a superior alternative. The Modified Genetic Algorithm (MGA) is utilized as a global optimization strategy to create thirty-two phase sequence sets in this work. Design orthogonal thirty-two phase sequence sets with an impulse-like Autocorrelation Function (ACF) and a …
Published in Current Trends in Signal Processing · Vol. 12, Issue 2, 2022 · pp. 33–39 Read article
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Noise Analysis of Single-Ended Input Differential Amplifier (MOS) using Stochastic Differential Equation
Abstract: AbstractIn this paper, we do the noise analysis of single-ended input differential amplifier (MOS). Stochastic differential equations are used to analyse the effect of extrinsic noise. We use time domain method and use SDE (Stochastic Differential Equation) to determine autocorrelation function for the output process. Mean and variance of the output noise is obtained. This analysis helps to get circuit with better noise performance. The analysis compares the noise performance …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 3, 2017 · pp. 19–25 Read article
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Stochastic Differential Equation Noise Analysis of Common-Gate Amplifier with Capacitive Load
Abstract: In this paper, common-gate amplifier with capacitive load is analysed to observe the effect of noise on the circuit. We used stochastic differential equations to analyse the effect of extrinsic noise. We adopted time domain approach and used SDE to obtain autocorrelation function for the output voltage. We determined mean and variance of the output noise. This analysis leads to obtain the circuit with better noise performance. Keywords: Common-gate amplifier, …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 1, 2018 · pp. 1–4 Read article
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Phase Noise Reduction in WLAN by Applying Wavelet Packet Multiplexing
Abstract: The IEEE 802.11 standards for wireless Local Area Networks (LANs) commercialized as Wi-Fi are deployed in office and home environments. These systems provide data rates up to 1300 Mbps at 5 GHz and 400 Mbps at 2.4 GHz with physical layer based on OFDM and MIMOOFDM. Traditionally, multiplexing in OFDM is realized using static orthogonal waveforms derived from Fourier transforms. The decoding of the data at receiver is based on …
Published in Journal of Communication Engineering & Systems · Vol. 7, Issue 3, 2017 · pp. 8–15 Read article