نتایج جستجو برای: مبدل simo

تعداد نتایج: 4369  

ژورنال: :روش های هوشمند در صنعت برق 0
حسین اژدرفائقی بناب کارشناس ارشد - دانشکده فنی مهندسی، دانشگاه شهید مدنی آذربایجان، تبریز، ایران محمد رضا بنائی استاد - دانشکده فنی مهندسی، دانشگاه شهید مدنی آذربایجان، تبریز، ایران

در این مقاله یک مبدل dc-dc تک کلیده بدون ترانسفورماتور جدید با ضریب بهره بالا و تنش ولتاژ کم در دو سر کلید پیشنهاد می شود. در مبدل پیشنهادی تنها یک کلید به کار رفته است به همین دلیل کنترل آن ساده می باشد و تلفات هدایتی کلید نیز در مبدل پیشنهادی پائین می باشد. بهره ولتاژ مبدل پیشنهادی در مقایسه با مبدل افزاینده مرسوم و کاهنده-افزاینده بالاتر می باشد و مبدل پیشنهادی در ناحیه وسیع تری نسبت به مبدل...

Journal: :Transactions of the Institute of Systems, Control and Information Engineers 2006

2014
Jie Jin

In this paper, a new CMOS current-mode single input and multi-outputs (SIMO) universal filter and quadrature oscillator with a similar circuit are proposed. The circuits only consist of three Current differencing transconductance amplifiers (CDTA) and two grounded capacitors, which are resistorless, and they are suitable for monolithic integration. The universal filter uses minimum CDTAs and pa...

1998
Seungjin CHOI Andrzej CICHOCKI Shunichi AMARI

This paper presents a new distributed processing ap proach to direct blind equalization of Single Input Multiple Out put SIMO channels Under mild conditions it is shown here that we can recover the original source signal up to its scaled and delayed version by decorrelating the equalizer neural network outputs in spatio temporal domain Spatio temporal anti Hebbian learn ing rule simple local bi...

Journal: :CoRR 2012
Yi Fang Pingping Chen Lin Wang Francis Chung-Ming Lau Kai-Kit Wong

In wireless communications, spatial diversity techniques, such as space-time block code (STBC) and single-input multiple-output (SIMO), are employed to strengthen the robustness of the transmitted signal against channel fading. This paper studies the performance of protograph-based low-density parity-check (LDPC) codes with receive antenna diversity. We first propose a modified version of the p...

2004
L. Häring

In this paper, an overview of carrier frequency offset (CFO) estimation algorithms for Orthogonal Frequency Division Multiplexing (OFDM) systems is presented. It is well-known that multicarrier systems suffer from their high sensitivity to mismatches of transmitter and receiver oscillator frequencies. The performance degrades since the CFO destroys the orthogonality of the subcarriers. Hence, e...

Journal: :IET Communications 2012
Yi Fang Pingping Chen Lin Wang Francis Chung-Ming Lau Kai-Kit Wong

In wireless communications, spatial diversity techniques, such as space-time block code and single-input multipleoutput (SIMO), are employed to strengthen the robustness of the transmitted signal against channel fading. This article studies the performance of protograph-based low-density parity-check (LDPC) codes with receive antenna diversity. The authors first propose a modified version of th...

2013
Jian Li Manuel Ruiz-Sandoval Billie F. Spencer Amr S. Elnashai

Civil engineering structures are often subjected to multidirectional actions such as earthquake ground motion, which lead to complex structural responses. The contributions from the latter multidirectional actions to the response are highly coupled, leading to a MIMO system identification problem. Compared with single-input, multiple-output (SIMO) system identification, MIMO problems are more c...

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