نتایج جستجو برای: signal interference

تعداد نتایج: 500669  

Journal: :IEEE Transactions on Signal Processing 2022

This paper focuses on the joint synthesis of constant envelope transmit signal and receive filter aimed at optimizing radar performance in signal-dependent interference spectrally contested-congested environments. To ensure desired Quality Service (QoS) each communication system, a precise control energy injected by licensed/shared bandwidth is imposed. Besides, along with an upper bound to max...

Journal: :Electronics Letters 2023

In the presence of coherent interference, adaptive beamforming algorithm fails to form nulls in direction leading cancellation expect signal. To address this issue, paper proposes a interference suppression method with virtual array and multi-stage spatial smoothing (MSS). proposed method, weight acquired by (SS) is applied all subarrays generate array. Another then from using SS another The pr...

In this paper, a more realistic cognitive radio network is proposed which considers several secondary links, some secondary relays, and one primary link. In the network, there are two steps of transmission from secondary sources to secondary destinations. At the first step, when primary link is idle, all of the secondary sources simultaneously broadcast their information to the relays. At the s...

2008
Dongning Guo Yan Zhu Michael L. Honig

This paper studies signal detection in multiuser systems where the uncertainty is due to fading as well as a strong co-channel interference of the same form as that of the desired signal. In particular, unlike for the desired signal, no pilot for the interference signal is available for measuring its fading channel state. Still, the interference is a non-Gaussian process and treating it as Gaus...

This work presents a technique for the analysis of Facial Electromyogram signal activities to classify five different facial expressions for Computer-Muscle Interfacing applications. Facial Electromyogram (FEMG) is a technique for recording the asynchronous activation of neuronal inside the face muscles with non-invasive electrodes. FEMG pattern recognition is a difficult task for the researche...

Journal: :Remote Sensing 2023

As an important remote sensing technology, millimeter-wave radar is used for environmental in many fields due to its advantages of all-day, all-weather operation. With the increasing use radars, inter-radar interference becomes increasingly critical. Severe mutual degrades signal quality and affects performance post-processing, e.g., synthetic aperture (SAR) imaging target tracking. Aiming deal...

2009
C. Kezi Selva Vijila C.Ebbie Selva Kumar

In this paper, Adaptive Neuro Fuzzy Inference System (ANFIS) is proposed to cancel the electrocardiogram (ECG) interference in electromyogram (EMG) signal. Conventional filtering techniques are not suitable due to an overlap in spectral content of the desired signal (EMG) and the interference. Comparison of results is made between the proposed technique and the other artificial intelligence tec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی کامپیوتر 1386

با روند رو به رشد فناوری ساخت مدارهای مجتمع و افزایش تعداد اجزاء درونی آنها، نویز همشنوایی و تاثیر آن بر صحت سیگنال بیش از پیش نمایان شده است. افزایش تعداد اتصالات و مشکل تر شدن مسیله مسیریابی، طراحان را بر آن داشته که برای حل مسیله نویز به مراحل بالاتر چون جایابی رجوع کنند. روش های معمول در این مرحله تلاش دارند تا از طریق کاهش تراکم شانس وقوع همسایگی و در نتیجه نویز را کاهش دهند. روش های مذکور...

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