Title :
The homomorphic analytic signal
Author :
Poletti, Mark A.
Author_Institution :
Ind. Res. Ltd., Lower Hutt, New Zealand
fDate :
8/1/1997 12:00:00 AM
Abstract :
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
Keywords :
poles and zeros; signal processing; homomorphic analytic signal; homomorphic signal processing; instantaneous frequency; linear analytic signal; minimum phase signal; nonminimum phase poles; nonminimum phase zeros; phase signals; pole-zero distributions; real signal factorization; real signals; redundancy; signal analysis; Baseband; Frequency modulation; Information analysis; Poles and zeros; RF signals; Signal analysis; Signal generators; Signal processing; Time domain analysis; Wideband;
Journal_Title :
Signal Processing, IEEE Transactions on