Abstract:

Aiming at the echo problem in communication,this paper presents a algorithm of LMS based on adaptive echo cancellation using DSP Builder Tool,which combines Matlab/Simulink with Quartus II designing tools on FPGA chips,with the concepts of modularization.The software simulation and hardware verification on FPGA indicate that the design is simpler and faster to implement the adaptive echo cancellation.

Key words: DSP Builder;adaptive echo cancellation;FPGA