The light sources may include laser emitters that combine their outputs into a polychromatic beam.

光源可以包括将它们的输出组合成多色束的激光 发射器。

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Based on the propagation law of partially coherent light, spectral changes of a polychromatic Gaussian-Schell model beam propagating in free space is studied.

基于部分相干光的传输定律，研究了多色高斯·谢尔模型光束在自由空间中传输的光谱变化。

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It is shown that the atmospheric turbulence gives rise to spectral shift and to beam spreading of spatially partially coherent polychromatic light whether the scaling law is satisfied or not.

结果表明，无论是否满足定标律，大气湍流会引起多色部分空间相干光的光谱移动和光束扩展；多色部分空间相干光光束扩展比多色完全空间相干光受湍流的影响小。

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