Accession Number : ADA259916


Title :   Data Selection for Fast Projection Techniques: A Comparative Study of Direction Finding Performance


Descriptive Note : Technical rept.


Corporate Author : DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)


Personal Author(s) : Toulgoat, Mylene ; Turner, Ross M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259916.pdf


Report Date : Dec 1992


Pagination or Media Count : 31


Abstract : This report describes simulation studies of fast projection techniques for direction finding of jammer signals. These techniques are based on a data selection criterion applied directly to the data vectors obtained at the output of an antenna array. The selected data vectors are used in fast projection algorithms to estimate the jammer subspace and then calculate the directional spectrum. Three such algorithms are described ranging from the fastest but least effective to the most computationally demanding but most effective. These algorithms provide a better tradeoff of performance versus computational load than has heretofore been available. Relative performance is compared with that of the MUSIC technique for test cases which evaluate the minimum resolution threshold achievable and the effect of the jammer strength relative to the receiver noise.


Descriptors :   *DIRECTION FINDING , *RADAR , *PHASED ARRAYS , TEST AND EVALUATION , ALGORITHMS , OUTPUT , ESTIMATES , RECEIVERS , ANTENNA ARRAYS , DIRECTIONAL , SELECTION , ANTENNAS , SIGNALS , SIMULATION , RESOLUTION , CANADA , ARRAYS


Subject Categories : Target Direction, Range and Position Finding


Distribution Statement : APPROVED FOR PUBLIC RELEASE