Adaptive Array Technology for Transportable Long Wavelength Ground-Based Bistatic Radar Systems

Period of Performance: 07/29/1992 - 01/29/1994


Phase 2 SBIR

Recipient Firm

Adaptive Sensors, Inc.
Santa Monica, CA 90405
Principal Investigator

Research Topics


The Phase II program subject includes the design, development, simulation and field testing of the conversion to a fully adaptive beam space receiver system of the Army's planned development of a bistatic weapons location radar system which includes an elevation and azimuth beam cluster on receive. the fully adaptive beam space signal processor conversion introduces the capability for the effective adaptive nulling of multiple side lobe barrage noise jammers without the need of additional sensing channels. In addition, the beam space adaptive processor provides the needed degrees of freedom for the effective nulling of a main beam jammer so that the coverage loss is minimized for the artilery shell traversing the beamcluster on its outward trajectory. The significant target azimuth and elevation errors resulting, for example, from the nulling of a near mainbeam jammer are also eliminated with a Maximum Likelihood Estimator (MLE) compensating procedure which is an integral part of the beam space adaptive signal processor. The proposed Phase II program will progress towards a feasibility demonstration of a fielded bistatic radar operating in a jamming environment and incorporating some of the major techniques under developmetn during the Phase I program. The program goal is to provide the ARmy, in a timely manner, and completely compatible with the Army's planned baseline design, the fully adaptive-in-the-beam space signal and data processing subsystem design, including implementation concepts, an simulation testbed, and laboratory and field testing procedures.