The homomorphic analytic signal

This paper introduces an alternative form of analytic signal that is formed using homomorphic signal processing techniques. It may be generated for signals that demonstrate redundancy in their pole-zero distributions, such as phase signals and real signals. The analytic signal is formed by manipulating the positions of the signal's nonminimum phase poles and zeros to create a minimum phase signal. A factorization of real signals is presented that demonstrates the properties of the homomorphic analytic signal, and a new definition of instantaneous frequency is developed. Examples are given to verify the theory and comparisons with the linear analytic signal, and instantaneous frequency are made.

[1]  John Mourjopoulos,et al.  Spectral, Phase, and Transient Equalization for Audio Systems , 1985 .

[2]  K. H. Powers The Compatibility Problem in Single-Sideband Transmission , 1960, Proceedings of the IRE.

[3]  D. Stone Wavelet estimation , 1984, Proceedings of the IEEE.

[4]  C. Cahn,et al.  On the sampling the zeros of bandwidth limited signals , 1958, IRE Trans. Inf. Theory.

[5]  A. Papoulis Signal Analysis , 1977 .

[6]  A. Requicha,et al.  The zeros of entire functions: Theory and engineering applications , 1980, Proceedings of the IEEE.

[7]  E. Bedrosian A Product Theorem for Hilbert Transforms , 1963 .

[8]  B. Picinbono,et al.  The Analytical Signal and Related Problem , 1989 .

[9]  A. Oppenheim,et al.  Nonlinear filtering of multiplied and convolved signals , 1968 .

[10]  Leon Cohen,et al.  Instantaneous Frequency, Its Standard Deviation And Multicomponent Signals , 1988, Optics & Photonics.

[11]  Madhu Gupta Definition of instantaneous frequency and frequency measurability , 1975 .

[12]  Balth. van der Pol,et al.  The Fundamental Principles of Frequency Modulation , 1946 .

[13]  L. Mandel Interpretation of Instantaneous Frequencies , 1974 .

[14]  S. F. Edwards G.B. Parrent,et al.  The Form of the General Unimodular Analytic Signal , 1959 .

[15]  S. Hahn,et al.  Multidimensional complex signals with single-orthant spectra , 1992, Proc. IEEE.

[16]  J. Dugundji,et al.  Envelopes and pre-envelopes of real waveforms , 1958, IRE Trans. Inf. Theory.

[17]  Mark A. Poletti Instantaneous frequency and conditional moments in the time-frequency plane , 1991, IEEE Trans. Signal Process..

[18]  Jr. J. L. Brown Analytic signals and product theorems for Hilbert transforms , 1974 .

[19]  L. Cohen,et al.  Time-frequency distributions-a review , 1989, Proc. IEEE.

[20]  G. B. Lockhart,et al.  Towards real-time implementation of a radio-data system for AM sound broadcasting , 1989 .

[21]  J. R. Carson,et al.  Variable frequency electric circuit theory with application to the theory of frequency-modulation , 1937 .

[22]  H. Voelcker Toward a unified theory of modulation part I: Phase-envelope relationships , 1966 .

[23]  D. Vakman Do we know what are the instantaneous frequency and instantaneous amplitude of a signal , 1976 .

[24]  S. L. Hahn Complex variable frequency electric circuit theory , 1964 .

[25]  Edward Bedrosian,et al.  The Analytic Signal Representation of Modulated Waveforms , 1962, Proceedings of the IRE.

[26]  Y. O. Al-Jalili Analysis and detection algorithms for complex time zeros of bandlimited signals , 1991 .

[27]  Dennis Gabor,et al.  Theory of communication , 1946 .

[28]  J. Mikusiński Operational Calculus , 1959 .

[29]  Boualem Boashash,et al.  Estimating and interpreting the instantaneous frequency of a signal. I. Fundamentals , 1992, Proc. IEEE.

[30]  Alan V. Oppenheim,et al.  Signal analysis by homomorphic prediction , 1976 .

[31]  T. Claasen,et al.  THE WIGNER DISTRIBUTION - A TOOL FOR TIME-FREQUENCY SIGNAL ANALYSIS , 1980 .

[32]  A. Nuttall,et al.  On the quadrature approximation to the Hilbert transform of modulated signals , 1966 .

[33]  E. C. Titchmarsh,et al.  The theory of functions , 1933 .

[34]  E. C. Titchmarsh The Zeros of Certain Integral Functions , 1926 .

[35]  Mark A. Poletti,et al.  The development of instantaneous bandwidth via local signal expansion , 1993, Signal Process..

[36]  G. B. Lockhart,et al.  Embedding data in DSB-AM using zero-synchronous modulation , 1987 .

[37]  Leon Cohen,et al.  Local Bandwidth And Optimal Windows For The Short Time Fourier Transform , 1989, Optics & Photonics.

[38]  Boualem Boashash,et al.  Analytic signal generation-tips and traps , 1994, IEEE Trans. Signal Process..

[39]  L. Storey,et al.  An investigation of whistling atmospherics , 1953, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences.

[40]  A. W. Rihaczek,et al.  Hilbert transforms and the complex representation of real signals , 1966 .

[41]  Leon Cohen,et al.  Instantaneous bandwidth for signals and spectrogram , 1990, International Conference on Acoustics, Speech, and Signal Processing.