Combined synthesis and projection techniques for jammer suppression in DS/SS communications.

In this paper; we propose a new nonstationary jammer suppression technique for DS/SS communications. This technique is based on combin􀁞d opemtions of bilinear signal synthesis and projections. The time-frequency distributions (TFDs) is used to define the jammer time-frequency (t-fJ signature. Multi-sensor army at the receiver allows both the spatial and tempoml signatures of the signal arrivals to be utilized. To estimate the waveform of a jammer, a mask is constructed and applied such that the masked t-f region captures the jammer energy, but leaves out most of the DS/SS signals. The jammer signals are then synthesized from the masked TFDs that can be removed from the received signal by orthogonal projection.

Main Author: Zhang, Yimin.
Other Authors: Lindsey, Alan R., Amin, Moeness G.
Language: English
Published: 2002
Online Access: http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:173210