A New Filter Design Technique for Coded Excitation Systems
Journal
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Journal Volume
39
Journal Issue
6
Pages
693-699
Date Issued
1992
Author(s)
Abstract
To increase range resolution and produce acceptable range sidelobe levels, filtering techniques rather than direct complex correlation are applied in coded excitation systems. A filter design technique based on both peak sidelobe levels and minimum sidelobe energy criteria is developed. In comparison to a classic inverse filter, this approach reduces sidelobe levels under a prespecified threshold. Further reduction can be achieved by extending the filter length. This technique can be more generally applied to similar signal processing problems. Both the mathematical formulation and simulation results demonstrating the utility of the technique are presented. A discussion of quantization effects is included.
SDGs
Type
journal article