Design of multi-path radio echo cancellation system in digital on-channel repeater for DAB

The design of multi-path radio echo cancellation system in digital on-channel repeater for DAB could deal with problems that can not be solved only by antenna isolation.Based on the limitation of designing hardware with LMS algorithm,an improved DLMS algorithm which is suitable for the high speed real time signal processing is put forward in this paper,and it is implemented with Xilinx Virtex-4FPGA.