Sparse signals estimation for adaptive sampling
نویسندگان
چکیده
منابع مشابه
Sparse signals estimation for adaptive sampling
This paper presents an estimation procedure for sparse signals in adaptive setting. We show that when the pure signal is strong enough, the value of loss function is asymptotically the same as for an optimal estimator up to a constant multiplier.
متن کاملAdaptive Sampling for Sparse Recovery
Consider n data sequences, each consisting of independent and identically distributed elements drawn from one of the two possible zero-mean Gaussian distributions with variances A0 and A1. The problem of quickly identifying all of the sequences with varianceA1 is considered and an adaptive two-stage experimental design and testing procedure is proposed. The agility and reliability gains in comp...
متن کاملSampling and Estimation for (Sparse) Exchangeable Graphs
Sparse exchangeable graphs on R+, and the associated graphex framework for sparse graphs, generalize exchangeable graphs on N, and the associated graphon framework for dense graphs. We develop the graphex framework as a tool for statistical network analysis by identifying the sampling scheme that is naturally associated with the models of the framework, and by introducing a general consistent e...
متن کاملMultirate asynchronous sampling of sparse multiband signals.
Because optical systems have a huge bandwidth and are capable of generating low-noise short pulses, they are ideal for undersampling multiband signals that are located within a very broad frequency range. We propose a new scheme for reconstructing multiband signals that occupy a small part of a given broad frequency range under the constraint of a small number of sampling channels. The scheme, ...
متن کاملAdaptive non-uniform sampling of sparse signals for Green Cognitive Radio
Based on previous results on periodic non-uniform sampling (Multi-Coset) and using the well known Non-Uniform Fourier Transform through Bartlett's method for Power Spectral Density estimation, we propose a new smart sampling scheme named the Dynamic Single Branch Non-uniform Sampler. The idea of our scheme is to reduce the average sampling frequency, the number of samples collected, and consequ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Statistics, Optimization & Information Computing
سال: 2014
ISSN: 2310-5070,2311-004X
DOI: 10.19139/soic.v2i3.71