Adaptive processing method for interference cancellation in sky‐wave OTHR

Adaptive subarray design for interference cancellation

A method for designing near-optimal, tapered subarrays for adaptive interference cancellation is proposed. The limited aperture or limited element feature of these subarrays enables a low-complexity hardware implementation of a partially adaptive array. This approach optimizes canceller performance for a given number of beams and a given number of elements per beams.

Adaptive Multistage Parallel Interference Cancellation for CDMA

Adaptive multistage parallel interference cancellation for CDMA

An adaptive multistage parallel interference cancellation technique based on a partial interference cancellation (IC) approach [1] was proposed in [2] for multipath fading channels. In this paper, the proposed technique is applied to develop a receiver structure in an AWGN environment. Unlike the scheme in [1], the weighting factors in this proposed scheme are derived by minimizing the meansqua...

Subarray Design for Adaptive Interference Cancellation

A method for designing near optimal, tapered subarrays for adaptive interference cancellation is proposed. The design method simultaneously produces a complete ordered set of fixed beam definitions, or nonadaptive weight vectors. The designer may choose to implement the first of these if he or she wishes to have exactly adaptive weights. In other words, the digital–adaptive processing is done i...

Subspace Impulsive Interference Suppression in Othr

This paper proposes a novel subspace projection algorithm for impulsive interference (IMI) suppression in echo samples received by an over-the-horizon radar (OTHR). We particularly highlight the model that the frequency spectrum of IMI component is a complex cosine signal such that IMI cosine can be filtered out by subspace projection. Compared with existing algorithms, a more simple clutter su...