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sarmaxswath

Upper bound on swath length for SAR

    Description

    example

    swlenc = sarmaxswath(v,azres,grazang) computes the upper bound on swath length based on SAR constraints.

    swlenc = sarmaxswath(v,azres,grazang,dcang) specifies the Doppler cone angle that identifies the direction towards the scene relative to the direction of motion of the array.

    Examples

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    Estimate the constraint on swath length for a side-looking airborne SAR operating in broadside with a sensor velocity of 100 m/s. The radar has a cross-range resolution of 1.5 m and a nominal grazing angle of 30.

    v = 100;
    azres = 1.5;
    grazang = 30;

    Compute the swath length constraint.

    swlen = sarmaxswath(v,azres,grazang)
    swlen = 2.5963e+06
    

    Input Arguments

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    Sensor velocity in meters per second, specified as a positive real scalar or vector.

    Data Types: double

    Image azimuth or cross-range resolution in meters, specified as a positive real scalar or a vector.

    Data Types: double

    Grazing angle in degrees, specified as a scalar in the range [0, 90].

    Data Types: double

    Doppler cone angle in degrees, specified as a scalar in the range [0, 180]. This argument identifies the direction toward the scene relative to the direction of motion of the array.

    Data Types: double

    Output Arguments

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    Upper bound on swath length in meters, returned as a matrix. The rows of swlenc correspond to the velocity values in v. The columns of swlenc correspond to the azimuth resolution values in azres.

    Extended Capabilities

    C/C++ Code Generation
    Generate C and C++ code using MATLAB® Coder™.

    Introduced in R2021a