说明这个扩展函数是如何使用名称空间前缀调用的(见本例的xslext)。

Note how the extension function is called using the namespace prefix (xslext in this example).

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在空间域不相干环境背景噪声的假设前提下推导出成像算法的点-扩展函数。

Under the assumption of spatially-incoherent ambient noise, an analytical expression for the point-spread function of the imaging algorithm is derived.

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再针对湍流点扩展函数的衰减性质，建立了一个具有非线性和空间各向异性的正则化函数，使其在重建点扩展函数时能适当地进行空间梯度平滑。

Second, to match the decay nature of turbulence PSFs, an anisotropic and nonlinear regularization function is suggested to adequately regulate the PSF values in the process of rebuilding PSF.

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