A new technique for phasing coherent arrays is described for the situation in which independent realizations of an object's far field are measured, with each measurement corrupted by a different phase error. The method is similar to the imaging correlography technique in that an estimate of the object's autocorrelation is obtained by correlating the far-field intensities. However, in contrast with imaging correlography, this information is then used to estimate the phase errors for each realization, and the phase-error estimates are used to phase the array and form an estimate of the object.<>


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    Title :

    Phase-error correction for coherent array imaging systems


    Contributors:


    Publication date :

    1994-01-01


    Size :

    312491 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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