Random sampling stability of signals in weighted reproducing kernel spaces
For the independent random samples obtained according to the general probability distribution,the random sampling sta-bility of signals is studied in the weighted reproducing kernel subspace under the condition that the kernel function does not satisfy the symmetry.Firstly,based on the framework characterization of the weighted reproducing kernel subspace,the finite dimensional subspace is used to approximate the weighted reproducing kernel space on the bounded region.Secondly,by studying the relation-ship between the infinite norm and p norm of signals in the weighted reproducing kernel subspace,the covering number of the nor-malized finite dimensional subspace is estimated.Finally,it is proved that the random sampling stability of the weighted reproduc-ing kernel signals with energy concentrated on the cube is valid with high probability when the sampling quantity is large enough.
weighted reproducing kernel subspacecovering numberprobability density functionrandom samplingsampling stability
万方数据
维普
