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该回波抵消器以TMS320C25 DSP芯片作为核心,采用横向滤波器形式的分块修正LMS算法,具有双向通话时中止参数修正功能.在回波抵消到某一个固定门限时将残余误差置0.最大尾电路延迟时间达32ms.
The echo canceller to TMS320C25 DSP chip as the core, the use of horizontal filter form of block-modified LMS algorithm, with two-way call to stop the parameter correction function in the echo offset to a fixed threshold will set the residual error of 0. Maximum Tail circuit delay time up to 32ms.