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This paper presents a novel approach based on the estimation of the jammer instantaneous frequency for the excision of narrowband interferences in spread spectrum systems. Using a three-coefficient finite impulse response (FIR) model for the interference, an augmented state-space representation of the received signal (spread spectrum signal+noise+interference signal) is developed. Based on the state-space...
The paper presents a simple recursive solution to passive tracking of maneuvering targets using time difference of arrival (TDOA) measurements. Firstly, an iterative Gauss–Newton algorithm is developed for stationary target localization based on a constrained weighted least-squares (CWLS) criterion. The advantages of the CWLS estimate are its inherent stability due to the absence of local minima at...
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