This paper addresses the impact of limited oscillator stability in bi- and multistatic SAR. Oscillator noise deserves special attention in distributed SAR systems, since there is no cancellation of low frequency phase errors as in a monostatic SAR, where the same oscillator signal is used for modulation and demodulation. We show that uncompensated phase noise may cause a time variant shift, spurious sidelobes, and a widening of the impulse response, as well as a low frequency phase modulation of the focused SAR signal. Quantitative estimates are derived analytically for each of these errors based on a systems theoretic model taking into account the second-order statistics of the oscillator phase noise.


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    Title :

    Impact of Oscillator Noise in Bistatic and Multistatic SAR


    Contributors:

    Conference:

    2005 ; Seoul, Korea



    Publication date :

    2005-07-01


    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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