Exploitation of Cyclostationarity for Signal-Parameter Estimation and System Identification
Abstract
The cyclostationarity property of communications and telemetry signals enables the generation of spectral lines with appropriate nonlinear transformations and renders fluctuations in distinct spectral bands statistically dependent. The frequencies at which spectral lines can be generated are directly related to the separations between dependent spectral bands, which in turn are directly related to carrier frequencies, keying rates, pulse rates, and so on, in the signal. These inherent properties of cyclostationary signals can be exploited to great advantage for numerous tasks in signal processing. The objectives of the research being conducted are to investigate new cyclostationarity-exploiting methods for (1) signal-selective high-resolution direction finding using sensor arrays, (2) selectively locating emitters by time difference and frequency difference measurement with one or more pairs of sensors, (3) identifying the kernels in the Volterra series representation of nonlinear time-invariant and multiply-periodic systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1992
- Accession Number
- ADA260833
Entities
People
- Stephan V. Schell
- William A. Gardner
Organizations
- University of California