Noise Calculation Technique Using Time Varying Model

All oscillators are periodically time varying systems, so to accurate phase noise calculation and simulation, time varying model should be considered. Phase noise is an important characteristic of oscillator design. It defined as the spectral density of the oscillator spectrum at an offset from the...

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Main Authors: Saber Izadpanah Tous, Mahmoud Behroozi, Ehsan Kargaran, Hooman Nabovati
Format: Article
Language:English
Published: OICC Press 2024-02-01
Series:Majlesi Journal of Electrical Engineering
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Online Access:https://oiccpress.com/mjee/article/view/5222
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author Saber Izadpanah Tous
Mahmoud Behroozi
Ehsan Kargaran
Hooman Nabovati
author_facet Saber Izadpanah Tous
Mahmoud Behroozi
Ehsan Kargaran
Hooman Nabovati
author_sort Saber Izadpanah Tous
collection DOAJ
description All oscillators are periodically time varying systems, so to accurate phase noise calculation and simulation, time varying model should be considered. Phase noise is an important characteristic of oscillator design. It defined as the spectral density of the oscillator spectrum at an offset from the center frequency of the oscillator relative to the power of the oscillator. In this paper, we study linear time invariant (LTI) and linear time variant (LTV) modelâs to calculate phase noise. Moreover, we propose a simple method for Impulse Sensitivity Function (ISF) calculation. Different oscillators have been selected to evaluate the proposed method.  Simulation results show that the proposed method is simpler than other methods, and we can easily simulation ISF.åªè²è¨ç®æè¡ä½¿ç¨æè®æ¨¡åæè¦ææçæ¯çªå¨é±ææè®ç³»çµ±ï¼æä»¥è¦ç²¾ç¢ºçç¸ä½åªè²çè¨ç®å模æ¬ï¼é¨æéè®åçæ¨¡å¼æè©²è¢«è慮ãç¸ä½åªè²æ¯æ¯çªå¨è¨­è¨çä¸åéè¦ç¹å¾µãå®å®ç¾©çºæ¯çªå¨é »è­ä¸­çä¸åå¾ç¸å°æ¼æ¯çªå¨çåççæ¯çªå¨ç中å¿é »çåç§»çé »è­å¯åº¦ã卿¬æä¸­ï¼æåç ç©¶äºç·æ§æä¸è®ï¼LTIï¼åç·æ§æè®ï¼LTVï¼æ¨¡åä¾è¨ç®ç¸ä½åªè²ãæ­¤å¤ï¼æåæåºäºèè¡éæåº¦å½æ¸ï¼ISFï¼è¨ç®çç°¡å®æ¹æ³ãä¸åæ¯çªå¨å·²é¸å®ï¼è©ä¼°äºè©²æ¹æ³ã仿ççµæè¡¨æï¼è©²æ¹æ³æ¯å…¶ä»æ¹æ³æ´ç°¡å®ï¼æåå¯ä»¥å¾å®¹æå°æ¨¡æ¬ISFã
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spelling doaj-art-5e7c0d1dfd214824bd3b860f9e60a2fc2025-08-20T02:15:58ZengOICC PressMajlesi Journal of Electrical Engineering2345-377X2345-37962024-02-0164Noise Calculation Technique Using Time Varying ModelSaber Izadpanah Tous0Mahmoud Behroozi1Ehsan Kargaran2Hooman Nabovati3Department of Electrical Engineering, Sadjad Institute of Higher Education, MashhadDepartment of Electrical Engineering, Sadjad Institute of Higher Education, Mashhadsadjad institue of higher education, mashhadDepartment of Electrical Engineering, Sadjad Institute of Higher Education, MashhadAll oscillators are periodically time varying systems, so to accurate phase noise calculation and simulation, time varying model should be considered. Phase noise is an important characteristic of oscillator design. It defined as the spectral density of the oscillator spectrum at an offset from the center frequency of the oscillator relative to the power of the oscillator. In this paper, we study linear time invariant (LTI) and linear time variant (LTV) modelâs to calculate phase noise. Moreover, we propose a simple method for Impulse Sensitivity Function (ISF) calculation. Different oscillators have been selected to evaluate the proposed method.  Simulation results show that the proposed method is simpler than other methods, and we can easily simulation ISF.åªè²è¨ç®æè¡ä½¿ç¨æè®æ¨¡åæè¦ææçæ¯çªå¨é±ææè®ç³»çµ±ï¼æä»¥è¦ç²¾ç¢ºçç¸ä½åªè²çè¨ç®å模æ¬ï¼é¨æéè®åçæ¨¡å¼æè©²è¢«è慮ãç¸ä½åªè²æ¯æ¯çªå¨è¨­è¨çä¸åéè¦ç¹å¾µãå®å®ç¾©çºæ¯çªå¨é »è­ä¸­çä¸åå¾ç¸å°æ¼æ¯çªå¨çåççæ¯çªå¨ç中å¿é »çåç§»çé »è­å¯åº¦ã卿¬æä¸­ï¼æåç ç©¶äºç·æ§æä¸è®ï¼LTIï¼åç·æ§æè®ï¼LTVï¼æ¨¡åä¾è¨ç®ç¸ä½åªè²ãæ­¤å¤ï¼æåæåºäºèè¡éæåº¦å½æ¸ï¼ISFï¼è¨ç®çç°¡å®æ¹æ³ãä¸åæ¯çªå¨å·²é¸å®ï¼è©ä¼°äºè©²æ¹æ³ã仿ççµæè¡¨æï¼è©²æ¹æ³æ¯å…¶ä»æ¹æ³æ´ç°¡å®ï¼æåå¯ä»¥å¾å®¹æå°æ¨¡æ¬ISFãhttps://oiccpress.com/mjee/article/view/5222Cloud computing, DDoS attacks, Machine Learning, deep learning techniques, . ,Sadjad Institute for Higher Education
spellingShingle Saber Izadpanah Tous
Mahmoud Behroozi
Ehsan Kargaran
Hooman Nabovati
Noise Calculation Technique Using Time Varying Model
Majlesi Journal of Electrical Engineering
Cloud computing, DDoS attacks, Machine Learning, deep learning techniques, . ,
Sadjad Institute for Higher Education
title Noise Calculation Technique Using Time Varying Model
title_full Noise Calculation Technique Using Time Varying Model
title_fullStr Noise Calculation Technique Using Time Varying Model
title_full_unstemmed Noise Calculation Technique Using Time Varying Model
title_short Noise Calculation Technique Using Time Varying Model
title_sort noise calculation technique using time varying model
topic Cloud computing, DDoS attacks, Machine Learning, deep learning techniques, . ,
Sadjad Institute for Higher Education
url https://oiccpress.com/mjee/article/view/5222
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AT ehsankargaran noisecalculationtechniqueusingtimevaryingmodel
AT hoomannabovati noisecalculationtechniqueusingtimevaryingmodel