摘要：This work describes a novel adaptive matrix/vector gradient (AMVG) algorithm for design of IIR filters and ARMA signal models. The AMVG algorithm can track to IIR filters and ARMA systems having poles also outside the unit circle. The time reversed filtering procedure was used to treat the unstable conditions. The SVD-based null space solution was used for the initialization of the AMVG algorithm. We demonstrate the feasibility of the method by designing a digital phase shifter, which adapts to complex frequency carriers in the presence of noise. We implement the half-sample delay filter and describe the envelope detector based on the Hilbert transform filter.

摘要：从国土面积上看,芬兰与其他欧洲国家相比无疑是一个小国,但是它在建筑设计方面的领先地位却是很多欧洲国家无法比肩的。说到宗教建筑,首先闪现在我们脑海中的国家无疑是意大利、印度等国家,但是芬兰最近出现的一些教堂建筑仍然给人留下了深刻的印象。引起人们注意的一个主要的原因是其所使用的材料，众所周知，芬兰的设计师在木材的使用上都堪称专家，