干涉仪在球面上成像：球面波谐波变换
Imaging on a Sphere with Interferometers: the Spherical Wave Harmonic Transform
摘要：
我提出了一个精确的和明确的解决方案标量（斯托克斯通量强度）无线电干涉仪成像方程的球面上，这也是有效的非共面干涉仪配置。该成像方程与$w$项成像算法相当，但是通过使用球面而不是笛卡尔公式，该项没有特殊意义。提出的解决方案还允许直接识别天空中的标量（自旋0加权）球谐函数。该方法应感兴趣的未来多航天器干涉仪，宽场成像与非共面阵列，和CMB球面谐波测量使用干涉仪。
英文摘要：
I present an exact and explicit solution to the scalar (Stokes flux intensity) radio interferometer imaging equation on a spherical surface which is valid also for non-coplanar interferometer configurations. This imaging equation is comparable to $w$-term imaging algorithms, but by using a spherical rather than a Cartesian formulation this term has no special significance. The solution presented also allows direct identification of the scalar (spin 0 weighted) spherical harmonics on the sky. The method should be of interest for future multi-spacecraft interferometers, wide-field imaging with non-coplanar arrays, and CMB spherical harmonic measurements using interferometers.
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