lrm 中文意思是什麼
lrm
解釋
外直肌-
Linear referencing system ( lrs ) provides the fundamental referencing space for transformation among various linear referencing methods ( lrm ) and supports multiple cartographic representations ( at any scale ), which presents a good way of integrating and sharing data in gis - t
摘要線性參照系統在gis - t中提供了一種數據集成與共享的方法，可實現多種線性參照方法間的相互轉換及在任意比例尺的地圖上進行繪圖顯示。 -
Adaptive echo cancellation provides a comfortable solution whose concept is extremely simple : if an exact electric replica, parallel to the lrm ( loudspeaker - room - microphone ) system is provided, the decoupling of loudspeaker and microphone can be achieved without any restrictions to the electric acoustic system and - more important - without any loss of convenience to the user
為解決聲回波對消問題（ aec ） ，人們提出了各種方案，傳統的方法能在一定程度上抑制回聲，但存在抑制比較小，或需要專用房間，限制通信者移動等缺點。不能給通信者提供?個完全舒適的通話環境。 -
The implementation of such a system is extremely complicated due to three factors : the impulse response of a lrm system have a duration of several hundred milliseconds, the system has to be adaptive, and the adaptation has to be performed with a speech input the traditional adaptive algorithms such as lms and nlms can not obtain the satisfied result in the real - time acoustic echo cancellation processing
但由於聲回授通道的特殊性和復雜性，普通的自適應演算法無法滿足要求，必須採用一些十分復雜的演算法，這樣一來，實時性的問題變得十分突出。快速lms newton演算法的提出，給自適應聲回波對消問題的解決開辟了新的途徑。該演算法集lms演算法的簡單易行性和newton演算法的快收斂性為一體，是一種非常有應用前景的自適應演算法。
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