diff --git a/src/Function2D.cpp b/src/Function2D.cpp
index f0a395a..dedf1dc 100644
--- a/src/Function2D.cpp
+++ b/src/Function2D.cpp
@@ -13,6 +13,7 @@
 #include <Eigen/Eigen>
 #include <Eigen/Dense>
 #include <iterator>
+#include <mkl_dfti.h>
 #include <utility>
 
 using namespace Aurora;
@@ -795,7 +796,7 @@ Matrix Aurora::ifft(const Matrix &aMatrix, long aFFTSize ) {
     if (status != DFTI_NO_ERROR) goto error;
     //通过 setValue 配置Descriptor
     //使用单独的输出数据缓存
-    status = DftiSetValue(my_desc_handle, DFTI_PLACEMENT, DFTI_NOT_INPLACE);
+    status = DftiSetValue(my_desc_handle, DFTI_PLACEMENT, DFTI_INPLACE);
     if (status != DFTI_NO_ERROR) goto error;
 
     //设置DFTI_BACKWARD_SCALE ！！！很关键，不然值不对
@@ -821,7 +822,7 @@ Matrix Aurora::ifft(const Matrix &aMatrix, long aFFTSize ) {
     if (status != DFTI_NO_ERROR) goto error;
     
     //执行计算
-    status = DftiComputeBackward(my_desc_handle, aMatrix.getData(), output);
+    status = DftiComputeBackward(my_desc_handle, output, output);
     if (status != DFTI_NO_ERROR) goto error;
     //释放资源
     status = DftiFreeDescriptor(&my_desc_handle);