Application of Hermite-Rodriguez Functions to Pulse Shaping Analog Filter Design

In this paper, we consider the design of pulse shaping filter using orthogonal Hermite-Rodriguez basis functions. The pulse shaping filter design problem has been formulated and solved as a quadratic programming problem with linear inequality constraints. Compared with the existing approaches reported in the literature, the use of Hermite-Rodriguez functions offers an effective alternative to solve the constrained filter synthesis problem. This is demonstrated through a numerical example which is concerned with the design of an equalization filter for a digital transmission channel.




References:
[1] L.R. Lo Conte and R. Merletti, "Hermite Expansions of compact
support waveforms: applications to Myoelectric signals", IEEE Trans.
on Biomedical Engineering, vol. 41, no. 12, pp.1147-1159, 1994.
[2] S.S. Abeysekera and Z. Zang, "Wideband Sonar Waveform Design
using Linear FM Signals and Hermite-Rodriguez Functions", IEEE
OCEANS-06 Asia Pacific, Singapore, May 2006.
[3] Bell Communications, "DSX-3 isolated pulse template and equations",
Technical Reference TR-TSY-000499, Issue 2, pp.9-17, Dec. 1988.
[4] CCITT, "Physical/Electrical characteristic of hierarchical digital interfaces",
G. 703, Fascicle III, 1991.
[5] B. Vo, A. Cantoni and K. L. Teo, "Envelope constrained filter with
linear interpolator", IEEE Trans. Signal Processing, vol. 45, pp.1405-
1414, June 1997.
[6] A. Carusone and D. A. Johns, "Analogue adaptive filters: past and
present", IEE Proc. Circuits, Devices and Systems, vol. 147, pp.82-90,
2000.
[7] R.J. Evans, A. Cantoni and T. E. Fortman, "Envelope-constrained filter,
Part I, Theory and application; Part II, adaptive structures", IEEE Trans.
Information Theory, vol. IT-23, pp.421-444, 1977.
[8] B. Vo, Z. Zang, A. Cantoni and K. L. Teo, "Continuous-time envelope
constrained filter design via orthonormal filters", IEE Proc.- Vision,
Image Signal Processing, vol. 142, pp.389-394, 1995.
[9] Z. Zang, B. Vo, A. Cantoni and K.L. Teo, "Iterative algorithms for
envelope constrained recursive filter design via Laguerre functions,"
IEEE Trans. Circuits & Systems. Part I, vol. 46, no. 11, pp.1342-1348,
1999.
[10] S. Nordebo, Z. Zang, and I. Claesson, "A semi-infinite quadratic
programming algorithm with applications to array pattern synthesis",
IEEE Trans. Circuits & Systems. II, vol. 48, no. 3, pp.225-232, 2001.
[11] Z. Zang, "Application of wavelets to envelope-constrained analog filter
design for communication channel equalisation", International Conf on
Signal Processing, 1998.
[12] M.R. Mackenzie and A. K. Tieu, "Hermite neural network correlation
and application", IEEE Trans. on Signal Processing, vol. 51, no. 12,
pp.3210-3219, 2003.
[13] M.R. Mackenzie and A. K. Tieu, "Gaussian Filters and Filter Synthesis
Using a Hermite/Laguerre Neural Network", IEEE Trans. on Neural
Networks, vol. 15, no. 1, pp.206-214, Jan 2004.
[14] J.A. Ney da Silva and M.L.R. de Campos, "Spectrally Efficient UWB
Pulse Shaping With Application on Orthogonal PSM", IEEE Trans. on
Communications, vol. 55, no. 2, pp.313-322, Feb 2007.