Graph and Projection Pursuits Approach for Time Frequency Analysis

In high density radio frequency (RF) signal environments, receivers usually acquire multiple source signals. These multiple source RF signals may be cochannel and co-duration and cause significant difficulties for the traditional time frequency approach to process them. In this paper, combining graph and projection pursuits techniques, we propose a new time frequency analysis approach for RF signal processing. The proposed approach allows us to separate cochannel and co-duration frequency modulation RF (FMRF) signals with low implementation cost.