Riabukha V. The theory and technique of protection the radars with phased antenna array against the masking noise interference, clutter and combined interference on the basis of adaptive lattice filter

Object is the protection process of radar with phased antenna array against the masking noise interference, clutter and combined interference on the basis of versatile adaptive lattice filter (ALF). Purpose is to develop the theory and technique of adaptive radar protection against masking interference. Subject is the theory of the ALF, structures and algorithms of the anti-interference protection systems based on the ALF and their efficiency. Methods are synthesis and analysis, mathematical and physical simulation, semi-practical experiment, testing of prototypes. Results are the theory of the ALF as a single structural and algorithmic basis of the adaptive radar protection systems against the noise interference, clutter and combined interference is developed; the digital adaptive system with simultaneous protection of several main channels of the radar with phased antenna array against effect of several noise sources on the basis of a single parallel ALF is synthesized and its efficiency is analyzed; the digital adaptive radar protection system against clutter on the basis of the serial ALF is synthesized and examined; the digital adaptive system of joint space-time signal processing against the background combined interference on the basis of bivariate ALF is synthesized and its performance is analyzed. Implemented at three enterprises of the State Concern “Ukroboronprom” and in the educational process of Kharkiv National University of Radio Electronics. Application field are radar systems of various purposes, academic disciplines in the radar theory and technique