Browsing by Author "Hoang Hung"

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Browsing by Author "Hoang Hung"

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  • Analog Flat Filter Design 
    Hoang Hung; Hoang Tuan; Nguyen Tuan (IEEE, 2009)
    This paper proposes a systematic approach for the design of a general class of analog infinite-impulse-response (IIR) filters, which includes all well-known classical analog filters as a special case. All specifications ...
  • Beam Pattern Synthesis For Large Symmetric Arrays With Bounds On Sidelobe And Mainlobe Levels 
    Hoang Hung; Hoang Tuan; Vo Ba-Ngu; Kha H (IEEE, 2005)
    Bounding the sidelobe and mainlobe levels of a symmetric antenna array with complex weights can be posed as semi-infinite trigonometric constraints. Standard optimization techniques can be used to convert the semi-infinite ...
  • Design of Exactly Linear Phase K-Regular IIR Half-Band Filter 
    Hoang Hung; Hoang Tuan; Nguyen Tuan; Kha H (IEEE-Inst Electrical Electronics Engineers Inc, 2008)
    This paper proposes a novel method to design exactly linear phase infinite impulse response half-band filters with arbitrary regularity. Broadly speaking, the design problem is formulated as a semi-infinite program, which ...
  • Design Of Two-Channel Filter Bank Composed Of Linear Phase IIR Filters 
    Hoang Hung; Hoang Tuan; Nguyen Tuan (IEEE, 2007)
    This paper proposes a novel method to design two-channel filter banks composed of exactly linear phase IIR filters. Broadly speaking, the design problem is formulated as a semidefinite program (SDP) of minimal order such ...
  • Frequency Selective KYP Lemma And Its Applications To IIR Filter Bank Design 
    Hoang Hung; Hoang Tuan; Nguyen Tuan (IEEE, 2007)
    For a transfer function/filter F(e(Jw)) of order n, Kalman-Yakubovich-Popov (KYP) lemma characterizes the intractable semi-infinite programming (SIP) condition F(e(-Jw)) 1 Theta [F(e(-Jw)) 1]>= 0 for all omega in frequency ...
  • Frequency-Selective KYP Lemma, IIR Filter, and Filter Bank Design 
    Hoang Hung; Hoang Tuan; Nguyen Tuan (IEEE-Inst Electrical Electronics Engineers Inc, 2009)
    For a transfer function F(e(3 omega)) of order n, Kalman-Yakubovich-Popov (KYP) lemma characterizes a general intractable semi-infinite programming (SIP) condition by a tractable semidefinite programming (SDP) for the ...
  • Large Array Beamforming Via Semidefinite Programming 
    Hoang Hung; Hoang Tuan; Vo Ba-Ngu (IEEE, 2006)
    Bounding the sidelobe and mainlobe levels of an array with complex weights is attractive in that it allows direct control of the radiation pattern. In this paper we propose an efficient beamforming technique for synthesizing ...
  • Low-dimensional SDP formulation for large antenna array synthesis 
    Hoang Hung; Hoang Tuan; Vo Ba-Ngu (IEEE-Inst Electrical Electronics Engineers Inc, 2007)
    Bounding the sidelobe and mainlobe levels of an array with complex weights is attractive in that it allows direct control of the radiation pattern. In this paper we propose an efficient beamforming technique for synthesizing ...
  • A Lyapunov Variable-Free KYP Lemma for SISO Continuous Systems 
    Hoang Hung; Hoang Tuan; Apkarian Pierre (IEEE-Inst Electrical Electronics Engineers Inc, 2008)
    This technical note proposes a novel frequency-selective Kalman-Yakubovich-Popov (FS-KYP) lemma for analysis of single-input single-output (SISO) continuous systems. In contrast to existing approaches, the proposed method ...
  • Mask Constrained Beam Pattern Synthesis For Large Arrays 
    Hoang Hung; Vo Ba-Ngu; Hoang Tuan; Son T (IEEE, 2005)
    Antenna array pattern synthesis with mask constraints can be formulated as a convex optimization problem with semi-infinite trigonometric polynomial constraints. The current approach uses a Linear Matrix Inequality (LMI) ...
  • Optimized Analog Filter Designs With Flat Responses by Semidefinite Programming 
    Hoang Nguyen; Hoang Tuan; Nguyen Tuan; Hoang Hung (IEEE-Inst Electrical Electronics Engineers Inc, 2009)
    Analog filters constitute indispensable components of analog circuits. Inspired by recent advances in digital filter design, this paper provides a flexible design for analog filters. All-pole filters have maximally flat ...
  • Optimized Analog Flat Filter Design 
    Hoang Hung; Hoang Tuan; Nguyen Tuan (IEEE-Inst Electrical Electronics Engineers Inc, 2010)
    This paper proposes a systematic approach for the optimized design of analog filters, which includes all well-known classical analog filters as a special case. All specifications including the conventional ones and also ...