基于部分相干光的传输定律 ,对多色部分空间相干光的长程大气传输做了研究 .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 .然而 ,带宽对光强分布的影响较小 Based on the propagation law of partially coherent light, the long-range atmospheric transmission of spatially coherent light in multicolor is studied. The results show that the atmospheric turbulence causes the spectral shift and beam expansion of spatially coherent light in multicolor, The multicolor partially spatially coherent light beam spread is less affected by turbulence than the multicolor totally spatially coherent light, however, the effect of bandwidth on light intensity distribution is small