John Paden's home page

John Paden

Associate Scientist for the Center for Remote Sensing of Ice Sheets (CReSIS)

Signal and Data Processing Lead
Courtesy appointment with Electrical Engineering and Computer Science department
University of Kansas

Paden Dissertation
Paden Resume
Google Scholar Page
Research Gate Page

Projects that I am currently involved with:

CReSIS Radar Data Processing Pipeline: We have collected about 1 PB of data as of 2016 and are adding about 100 TB per year. There are four radar sensors, each configurable and being updated periodically. The code is primarily written in Matlab and C. The pipeline is driven by parameter spreadsheets that allow large batches of jobs to be scheduled in a single shot. We use a custom Torque Scheduler interface on three clusters (128 core, 1840 core, and remote-field-configurable cluster 32-96 core) for most of the processing. The system includes support for stepped-chirped, deramp on receive, and regular directly sampled radars. The pipeline includes GPS alignment, metadata tracking, pulse compression, deconvolution, RFI suppression, SAR processing, and space-time array processing.
- CReSIS Data Website
Field work and data processing for NSF projects and NASA Operation IceBridge Multichannel Coherent Radar Depth Sounder (MCoRDS), Snow Radar, Ku-band Altimeter, and Accumulation Radar on the Kenn Borek Twin Otter and Basler, the NASA P-3, DC-8, and LC-130 as well as some ground based radar work.
SAR Active Target and Multistatic Receiver for ultra wideband radar system: to be used for array and radiometric calibration and as portable radar system.
- Interested in hiring student with strong Verilog and C++ experience.
Global Hawk Snow Thickness Estimation Radar
- This is a project to develop a 2-18 GHz FMCW radar for the NASA Global Hawk UAVs. The first planned deployment is on the NASA P-3 during the Spring 2017 OIB campaign.
Tomography/interferometry/3D imaging
- We have one more MS/PhD GRA position open to work on signal processing, 3D imaging, and image analysis on the SPIDAL project and Operation IceBridge projects funded through late 2019.
- We will also have an NSF Research Experiences for Undergraduates (REU) position available for most summers on this project. Please contact me if you are an undergraduate student interested in this work.
Geographic information system for CReSIS radar data
- Actively working on the Open Polar Server which is an open source system for storing sounding radar data that is hosted on Github.
Internal layer SAR processor
Ice sheet basal conditions (studying properties of radar scattering signal)
Ice sheet dielectrics and geophysical parameters (interest in CMP measurements and other methods for recovering geophysical properties of the ice)
Ku-band altimetry and interpretation of satellite altimeter data
Thickness and other properties of snow on sea ice

From my friend Pannir:

ON THIS DAY

"Mend a quarrel.
Search out a forgotten friend.
Dismiss suspicion and replace it with trust.
Share some treasure.
Give a soft answer.
Encourage youth.
Manifest your loyalty in a word or deed.
Keep a promise.
Find the time.
Forego a grudge.
Forgive an enemy.
Listen.
Apologize if you were wrong.
Try to understand.
Flout envy.
Examine your demands on others.
Think first of someone else.
Appreciate, be kind, be gentle.
Laugh a little more.
OM OM OM"

—Sri Swami Chidanandaji Maharaj