A Compensation Algorithm for Dual Variable Step FM of Narrowband ANC

作者：Chang Lin^*; Leng Xiaokun; Piao Songhao; Huang Boyan; Sun Jinwei

来源：International Conference on Electronic and Electrical Engineering (CEEE), 2014-05-16 to 2014-05-18.

In this essay, we use variable-step filter-X LMS (VSS-FXLMS) to replace filter-LMS (VSS-FXLMS) in main master controller unit for the first time. Plenty of simulation certifies that the new system won't have significant performance degradation when there is frequency mismatch (FM), although it has better performance and higher rate of convergence. And then we use compensation module updated by LMS algorithm to eliminate FM effects. Besides, variable step improves FM tracking performance. Simulation for stationary and non-stationary system certifies that the new algorithm modifies compensation well.

• 出版日期2014
• 单位哈尔滨工业大学