New methods for adaptive detection and estimation are presented for one-dimensional and two-dimensional signals. These methods have been developed by the writers during the past four years [1-9]. It is assumed that little prior information is known and that the spatial and tempral frequencies of monochromatic, plane wave signals may be closely spaced relative to the reciprocals of the sizes of apertures in space and time.
Donald W. Tufts,
"High Resolution Detection And Estimation", Proc. SPIE 0431, Real-Time Signal Processing VI, (28 November 1983); doi: 10.1117/12.936436; https://doi.org/10.1117/12.936436