DOA Estimation of LFM Signal Based on Subspace Matching Pursuit
Liu L · Electronic Science and Technology · 2014
A DOA estimation of LFM signal based on subspace matching pursuit is purposed to deal with the large sampled data in the estimation of LFM signal and unsatisfactory estimation under low signal noise ratio. The subspace matching pursuit arithmetic projects the signal on the subspace,calculates the maximum projection,and finally estimates the DOA of the LFM signal. This arithmetic also improves matching pursuit arithmetic and decreases the over matching phenomenon. Simulations show that the number of over matching by the subspace matching pursuit arithmetic is much less than that by the matching pursuit arithmetic,and the DOA are estimated under low signal noise ratio.