Cao et al. characterize one-coincidence frequency-hopping (OC-FH) sequences in terms of perfect Mendelsohn packings (PMP). In this note, we generalize the definition of $(v, n, lambda)$-PMP to $(k, v, n, lambda)$-PMP and provide combinatorial characterizations for sets of $k$-coincidence frequency-hopping ($k$-FH) sequences interms of $(k, v, n, lambda)$-PMP. As a consequence, results on perfect Mendelsohn packings and perfect Mendelsohn designs can be used to construct such sets of $k$-FH sequences.
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机译：曹等。用完美的孟德尔松包装（PMP）表征一次巧合的跳频（OC-FH）序列。在本说明中，我们将$（v，n，λ）$-PMP的定义概括为$（k，v，n，λ）$-PMP，并提供了$ k $符合跳频（ $（k，v，n，lambda）$-PMP的$ k $ -FH）序列项。结果，完美孟德尔索包装和完美孟德尔索设计的结果可用于构建这样的$ k $ -FH序列集。
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