Reconstruction of the Plenacoustic Function using Compressive Sampling

摘要：

A compressive sampling scheme for reconstruction of the plenacoustic function (PAF) in a closed space is presented, showing that the PAF can be recovered precisely with far less samples. The spatio-temporal PAF is sampled on a circular microphone array. For each fixed sampling angle in the circle, a proper sampling kernel (e.g. kernels which can reproduce polynomials, exponential splines, etc.) leads to precise reproduction of the PAF and dramatically reduction of the number of samples along temporal axis. The decay of spectrum along spatial axis is analyzed, in order to avoid aliasing of spatial reconstruction. A parametric method to find the whole expression of the 2-D PAF is also studied. Finally, experimental results are presented; it shows a low normalized mean-square-error (MSE) on the order of-32dB in practice.

关键词： plenacoustic function room impulse response compressive sampling sampling kernel

作者: Haiying Xia Rendong Ying Lingling Zhou

作者单位: Dept. of Electronic Engineering Department of SEIEE, Shanghai Jiao Tong University Shanghai, China

会议类型: 国际会议

会议名称: 2010 International Conference on Signal and Information Processing(2010年IEEE信号与信息处理国际会议 ICSIP2010)

会议地点: 长沙

会议语种:英文

页码: 295-299

在线出版日期: 2010-12-14（万方平台首次上网日期，不代表论文的发表时间）