Digital filter analysis and design

a LTl filter is completely characterised by its impulse response, h n in the time domain. The z-transform of the impulse response is the transfer function, H(z), which completely characterises the filter in the z-domain. 

The transfer function is a ratio of two polynomials, with the same coefficients as used in the difference equation. 

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Refs. [i] Oppenheim AV, Schafer RW (1999) Discrete-time signal processing. Prentice-Hall, New Jersey [ii] Antoniou A (1993) Digital filters analysis, design, and applications. McGraw-Hill, New York... 

A. Antoniou, Digital Filters, Analysis, Design and Applications, McGraw-Hill, New York, 1993. 

Antoniou, A. 1993. Digital Filters Analysis, Design, and Applications, 2nd ed. McGraw-HiU, New York. Barnes, C.W. 1979. Roundoff noise and overflow in normal digital filters. IEEE Trans. Circuits Syst. CAS-26(3) 154-159. 

Wu Y, et al. 1992. The design and analysis of an imp roved high air flow meter with analog/digital filters. IEEE Transactions on Instrumentation cuid Measurement, 41(6) 791 796. 

Dynamic, isothermal, and stepwise temperature control makes it possible to design flexible temperature programs. Digital filtering via Fourier analysis enhances the signal-to-noise ratio, which helps to resolve small tan 8 values. Comprehensive, multidimensional calibration of the DMA system leads to reproducible test results for the modulus and damping (viscoelastic) behavior of a sample. 

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