When the input to the block is a frame-based signal, the 'Input processing' parameter must be set to

When the input to the ‘uwb/OFDM Receiver/2x despreading/Delay’ block is a frame-based signal, the ‘Input processing’ parameter must be set to ‘Columns as channels (frame based)’.

这个错误原因按照matlab提示的错误模块，然后点击此模块进行相应的设置：例如我这个是因为延时单元通道默认是按照元素处理，选择成按照帧处理方式即可解决问题。