An　iterative　approach　based　on　phase　retrieval　and　combination　of　constraints　is　proposed　to　reconstruct　object　wavefront　free　from　twin　image　disturbances.　Comparing　with　other　iterative　methods,　the　proposed　method　has　a　better　elimination　effect　and　faster　rate　of　convergence.　Both　simulation　and　experimental　results　are　presented　to　validate　the　feasibility　of　the　proposed　approach.　(c)　2012　Elsevier　Ltd.　All　rights　reserved.