Method and apparatus for situationally adaptive processing in ec

Details Method and apparatus for situationally adaptive processing in ec Method and apparatus for situationally adaptive processing in ec

1998-07-13

2000-03-28

Assouad, Patrick

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

702191, 342159, 367 87, G01S 1500, G04B 110

Patent

active

060443367

ABSTRACT:
A signal processing method for use in echo-location systems (radar, sonar, laser radar) to obtain accurate estimates of the target reflectivity sequence in a random (non-Gaussian) noise environment, including ambient noise, reverberation, and clutter. The method derives the statistical characteristics of the random background environments and then constructs and maximizes the corresponding approximate likelihood function using iterative methods. The approximate maximum likelihood estimates are generated on the basis of an approximation of the ideal likelihood function which is maximized using computationally efficient algorithms.

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