• Corpus ID: 20953503

Optimal Envelope Approximation in Fourier Basis with Applications in TV White Space

  title={Optimal Envelope Approximation in Fourier Basis with Applications in TV White Space},
  author={Animesh Kumar},
Lowpass envelope approximation of smooth continuous-variable signals are introduced in this work. Envelope approximations are necessary when a given signal has to be approximated always to a larger value (such as in TV white space protection regions). In this work, a near-optimal approximate algorithm for finding a signal's envelope, while minimizing a mean-squared cost function, is detailed. The sparse (lowpass) signal approximation is obtained in the linear Fourier series basis. This… 

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