A Design Method of Hybrid Analog/Asymmetrical-FIR Pulse-Shaping Filters with an Eye-Opening Control Option against Receiver Timing Jitter

ETRI Journal

关键词: phase equalizer;    linear programming;    eye pattern;    inter-symbol interference;    Nyquist filter;    Square-root filter;   

Others  :  1185874
DOI  :  10.4218/etrij.10.0109.0725

【 摘 要 】

This paper presents a method of designing hybrid analog/asymmetrical square-root (SR) FIR filters. In addition to the conventional frequency domain constraints, the proposed method considers time-domain constraints as well, including the inter-symbol interference (ISI) and the opening of the eye pattern at the receiver output. This paper also reviews a systematic way to find the discrete-time equivalence of analog parts in a band-limited digital communication system. Thus, a phase equalizer can be easily realized to compensate for the nonlinear phase responses of the analog components. With the hybrid analog/SR FIR filter co-design, examples show that using the proposed method can result in a more robust ISI performance in the presence of the receiver clock jitter.

   

【 参考文献 】

• [1]J.G. Proakis and M. Salehi, Communication Systems Engineering, 2nd ed., Upper Saddle River, NJ: Prentice Hall, 2002.
• [2]A.C. Salazar and V.B. Lawrence, "Design and Implementation of Transmitter and Receiver Filters with Periodic Coefficient Nulls for Digital Systems," IEEE Int. Conf. Acoust. Speech, Signal Process., vol. 7, May 1982, pp. 306-310.
• [3]P.R. Chevillat and G. Ungerboeck, "Optimum FIR Transmitter and Receiver Filters for Data Transmission over Band-Limited Channels," IEEE Trans. Commun., vol. COM-30, Aug. 1982, pp. 1909-1915.
• [4]J.K. Liang, R.J.P. de Figueiredo, and F.C. Lu, "Design of Optimal Nyquist, Partial Response, N-th Band, and Nonuniform Tap Spacing FIR Digital Filters Using Linear Programming Techniques," IEEE Trans. Circuits. Syst., vol. CAS-32, Apr. 1985, pp. 386-392.
• [5]H. Samueli, "On the Design of Optimal Equiripple FIR Digital Filters for Data Transmission Applications," IEEE Trans. Circuits. Syst., vol. 35, Dec. 1988, pp. 1542-1546.
• [6]H. Samueli, "On the Design of FIR Digital Transmission Filters with Arbitrary Magnitude Specifications," IEEE Trans. Circuits. Syst., vol. 38, Dec. 1991, pp. 1563-1567.
• [7]C.-Y. Yao, "The Design of Square-Root-Raised-Cosine FIR Filters by an Iterative Technique," IEICE Trans. Fundamentals, vol. E90-A, Jan. 2007, pp. 241-248.
• [8]C.-Y. Yao and A.N. Willson, Jr., "The Design of Symmetric Square-Root Pulse-Shaping Filters for Transmitters and Receivers," Proc. IEEE Int. Symp. Circuits Syst., May 2007, pp. 2056-2059.
• [9]W.C. Lindsey and M.K. Simon, Telecommunication Systems. Engineering, Englewood Cliffs, NJ: Prentice Hall, 1973.
• [10]B. Farhang-Boroujeny and G. Mathew, "Nyquist Filters with Robust Performance Against Timing Jitter," IEEE Trans. Signal Process., vol. 46, Dec. 1998, pp. 3427-3431.
• [11]C.-Y. Yao and A.N. Willson, Jr., "The Design of Asymmetrical Square-Root Pulse-Shaping Filters with Wide Eye-Openings," Proc. IEEE Int. Symp. Circuits Syst., May 2008, pp. 2665-2668.
• [12]P. Boonyanant and S. Tantaratana, "Design and Hybrid Realization of FIR Nyquist Filters with Quantized Coefficients and Low Sensitivity to Timing Jitter," IEEE Trans. Signal Process., vol. 53, Jan. 2005, pp. 208-221.
• [13]J.O. Coleman and D.W. Lytle, "Linear-Programming Techniques for the Control of Intersymbol Interference with Hybrid FIR/Analog Pulse Shaping," Proc. IEEE Int. Conf. Commun., Chicago, IL, June 1992, pp. 793-798.
• [14]T.N. Davidson, Z.-Q. Luo, and K.M. Wong, "Design of Orthogonal Pulse Shapes for Communications via Semidefinite Programming," IEEE Trans. Signal Process., vol. 48, May 2000, pp. 1433-1445.
• [15]J.O. Coleman, "Linear-Programming Design of Data-Communication Pulses Tolerant of Timing Jitter or Multipath," Proc. 5th Int. Conf. Wireless Commun., Calgary, Alta., Canada, July 1993, pp. 341-352.
• [16]J. Liu, "Be Cautious When Using the FIR Channel Model with the OFDM-Based Communication Systems," IEEE Trans. Veh. Technol., vol. 58, no. 3, 2008, pp. 1607-1612.
• [17]C.-L. Chen and A.N. Willson, Jr., "A Trellis Search Algorithm for the Design of FIR Filters with Signed-Powers-of-Two Coefficients," IEEE Trans. Circuits Syst. II, vol. 46, Jan. 1999, pp. 29-39.
• [18]P. Siohan and F.M. de Saint-Martin, "New Designs of Linear-Phase Transmitter and Receiver Filters for Digital Transmission Systems," IEEE Trans. Circuits. Syst. II, vol. 46, no. 4, Apr. 1999, pp. 428-433.
• [19]H.J. Orchard and A.N. Willson, Jr., "On the Computation of a Minimum Phase Spectral Factor," IEEE Trans. Circuits. Syst. I, vol. 50, Mar. 2003, pp. 365-375.
• [20]J.G. Proakis and D.G. Manolakis, Digital Signal Processing Principles, Algorithm, and Applications, 3rd Ed., Upper Saddle River, NJ: Prentice Hall, 1996.
• [21]B. Farhang-Boroujeny, "A Square-Root Nyquist (M) Filter Design for Digital Communication Systems," IEEE Trans. Signal Process., vol. 56, May 2008, pp. 2127-2132.