现代计算机（普及版）
現代計算機（普及版）
현대계산궤（보급판）
MODERN COMPUTER
2015年
7期
3-5,15
,共4页
回声消除%正则化参数%稀疏控制%比例仿射投影算法
迴聲消除%正則化參數%稀疏控製%比例倣射投影算法
회성소제%정칙화삼수%희소공제%비례방사투영산법
Echo Cancellation%Regularization Parameter%Sparseness-Controlled%Proportionate Affine Projection Algorithm
针对稀疏控制比例仿射投影算法收敛速度和稳态失调之间的矛盾及正则化参数最优值难以确定的问题，通过迫使后验误差功率等于系统噪声功率，提出一种正则化参数随噪声功率大小进行自适应调节的稀疏控制比例仿射投影算法。算法解决稀疏控制比例仿射投影算法中正则化参数最优值的选取问题及快速收敛和稳态失调之间的矛盾。仿真结果验证所提算法的有效性。
針對稀疏控製比例倣射投影算法收斂速度和穩態失調之間的矛盾及正則化參數最優值難以確定的問題，通過迫使後驗誤差功率等于繫統譟聲功率，提齣一種正則化參數隨譟聲功率大小進行自適應調節的稀疏控製比例倣射投影算法。算法解決稀疏控製比例倣射投影算法中正則化參數最優值的選取問題及快速收斂和穩態失調之間的矛盾。倣真結果驗證所提算法的有效性。
침대희소공제비례방사투영산법수렴속도화은태실조지간적모순급정칙화삼수최우치난이학정적문제，통과박사후험오차공솔등우계통조성공솔，제출일충정칙화삼수수조성공솔대소진행자괄응조절적희소공제비례방사투영산법。산법해결희소공제비례방사투영산법중정칙화삼수최우치적선취문제급쾌속수렴화은태실조지간적모순。방진결과험증소제산법적유효성。
In various noise environments, the regularization parameter of the sparseness-controlled improved proportionate affine projection algo-rithms is difficult to be determined. To address the problem, proposes a variable regularization adaptive filtering algorithm by setting the component of the posterior error energy vector to equal that of the noise variance, termed VR- SC-IPAPA. The computer simulation re-sults verify that the proposed algorithm with a negligible additional computational cost can solve the problem of trade-off between conver-gence rate and steady-state misalignment and improve the performance of the SC-IPAPA.
