Research Of Algorithms Of Adaptive Signal Processing And Realization In FPGA

In order to realize adaptive signal processing at a high speed, this project realizes the LMS algorithm based on FPGA according to analysis of adaptive algorithms. In this project, the LMS algorithm is divided into several sub-operations. This division can be adopted into pipeline structure very easily. At the basic of this division, a new pipeline structure is proposed. The new pipeline structure has two types, one is of the whole system, the other is of some special operations. These two different pipelines are independent but must function in harmony. When this design method realized, the idea of module is adopted. In this project, truncation must be taken to ensure the result is correct. According to the truncation, a modified expression of the LMS algorithm is proposed, this expression can express the warp between theory and practice. The validity of these methods is conformed by simulation result.