In the presence of coherent interference, adaptive beamforming algorithm fails to form nulls in direction leading cancellation expect signal. To address this issue, paper proposes a interference suppression method with virtual array and multi-stage spatial smoothing (MSS). proposed method, weight acquired by (SS) is applied all subarrays generate array. Another then from using SS another The pr...

Abstract: Rejection of coherent interference requires an array consisting of several identical sub-arrays which operates with spatial smoothing algorithms. For the cases in which such array configuration cannot be obtained, other schemes must be employed to decouple the desired signal and the coherent interference. This paper presents a coherent interference suppression scheme, known as, the co...

| Combined spatial and time-frequency signatures of signal arrivals at a multi-sensor array are used for nonstationary interference suppression in direct-sequence spread-spectrum (DS/SS) communications. With random PN spreading code and deterministic nonstationary interferers, the use of antenna arrays o ers increased DS/SS signal dimensionality relative to the interferers. Interference mitigat...