iMAAPs is a powerful tool to estimate multiple-wave population admixed time, which is currently designed to infer the two-way, multiple-wave admixture based on admixture induced LD. This software can deal with genotype data, haplotype data and the data re-coded according to admixture ancestries.
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Zhou Y, Yuan K, Yu Y, Ni X, Xie P, Xing EP, Xu S.
Inference of multiple-wave population admixture by modeling decay of linkage disequilibrium with polynomial functions.
Heredity (Edinb). 2017 May;118(5):503-510. doi: 10.1038/hdy.2017.5. Epub 2017 Feb 15. PMID: 28198814; PMCID: PMC5564381.