We use a genetic algorithm to attack the receiver function inversion problem where the objective is to retrieve shear wave velocities of rock layers as a function of depth. The receiver function inversion is a non–linear, multi–modal, and multi–parameter optimization problem suited for genetic algorithms. We implement a three operator genetic algorithm consisting of selection, single–point cros...

We describe and apply an iterative, t ime-domain deconvolution approach to receiver-function estimation and illustrate the reliability and advantages of the technique using syntheticand observation-based examples. The iterative technique is commonly used in earthquake t ime-function studies and offers several advantages in receiver-function analysis such as intuitively stripping the largest rec...

SUMMARY P-to-S and S-to-P receiver functions are widely used to constrain the seismic discontinuity structures of Earth. Typically, projected depth location conversion assuming a 1-D layered Earth structure. Receiver function finite frequency sensitivity kernels have potential increase resolution. Here we present method for rapidly calculating P- S-wave kernels, based upon shortest path Dijkstr...

In 2010, Fan et al. presented an anonymous multi-receiver identity-based encryption scheme where they adopt Lagrange interpolating polynomial mechanism. They showed that their scheme makes it impossible for an attacker or any other message receiver to derive the identity of a message receiver such that the privacy of every receiver can be guaranteed. They also formally showed that every receive...

This dissertation describes the development of receiver function processing methods to create images of the seismic structure of the crust and upper mantle from teleseismic earthquake arrivals. These methods include receiver function estimation and prestack migration techniques which reduce deconvolution instability and produce regularized, multi-phase receiver function images. The receiver fun...