Kartik Tiwari | Ashoka University (original) (raw)

Astrodynamics and Astrophysics | Interested in the physics of interplanetary orbital maneuvers, astronautical mission design, and Trajectory optimization. Have past research experience in ISRO's Navigation satellites and ISRO's Space Capsule Retry Experiment.

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Drafts by Kartik Tiwari

Research paper thumbnail of Schwarzschild Black Hole Behavior in a CMBR Bath Evolving under a Flat FRW Cosmology

Research paper thumbnail of Studying Multipath Error in ISRO's NavIC Sattelites

In this paper, I document the strategy and results of my attempts at modelling and understanding ... more In this paper, I document the strategy and results of my attempts at modelling and understanding the nature of multipath error in navigation satellites. I shall be discussing my python code and the math used in the python code to study the signal error. I would also briefly discuss some fundamental concepts associated with navigation satellite as and when required.

Research paper thumbnail of Least Square Estimation using Givens Rotation for QR Factorization

In this technical report, I describe the details of the code that I had written to fit a curve fo... more In this technical report, I describe the details of the code that I had written to fit a curve for a set of observational data points using the Givens Rotation method of performing QR factorization. This document is structured in a manner where I first describe what Givens Rotation is, then the complete sequence of how I used Givens Rotation to find the R factor and, finally, how I use the R factor to fit a curve that matches the measured data points.

Research paper thumbnail of Schwarzschild Black Hole Behavior in a CMBR Bath Evolving under a Flat FRW Cosmology

Research paper thumbnail of Studying Multipath Error in ISRO's NavIC Sattelites

In this paper, I document the strategy and results of my attempts at modelling and understanding ... more In this paper, I document the strategy and results of my attempts at modelling and understanding the nature of multipath error in navigation satellites. I shall be discussing my python code and the math used in the python code to study the signal error. I would also briefly discuss some fundamental concepts associated with navigation satellite as and when required.

Research paper thumbnail of Least Square Estimation using Givens Rotation for QR Factorization

In this technical report, I describe the details of the code that I had written to fit a curve fo... more In this technical report, I describe the details of the code that I had written to fit a curve for a set of observational data points using the Givens Rotation method of performing QR factorization. This document is structured in a manner where I first describe what Givens Rotation is, then the complete sequence of how I used Givens Rotation to find the R factor and, finally, how I use the R factor to fit a curve that matches the measured data points.

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