Current Graduate Student


Photo of Deepthi Gorthi

Deepthi Gorthi

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Research Interests

I am a third year graduate student working on radio astronomy instrumentation. I am currently attempting to build an FFT Correlator or an FFT Imager for the Hydrogen Epoch of Reionization Array (HERA) coming up in South Africa.

Correlators are a part of the digital backend of most radio antenna arrays- they combine the signal from multiple antennas coherently to form an image of the sky. Traditionally, correlators computed the product of every antenna with every other antenna in the array (called visibilities). Mathematically, this is a 2D convolution of the antenna array which can also be obtained by performing a spatial FFT, if the antennas are in a regular grid. This idea is described in more detail here. I am attempting to build such an instrument for HERA which will be used to obtain the power spectrum of reionization.


Personal Interests

Personal Interests: I am currently a third year graduate student working with Dr. Aaron Parsons on building an FFT Imager for the Hydrogen Epoch of Reionization Array. I am interested in electronics, building FPGA designs and building instruments useful for astronomy. 


Biography

I am currently a third year graduate student working with Dr. Aaron Parsons on building an FFT Imager for the Hydrogen Epoch of Reionization Array. I am interested in electronics, building FPGA designs and building instruments useful for astronomy. 


Thesis

Thesis