Research timeline · the order it actually happened

Eight years, one thread.

From a damped sine wave off a SAW resonator (2018) to an arm cuff that estimates cardiac output (2026).

Start with the SAW work Jump to today
Same hobby, different decade

It's all just signals.

In 2018 I pulled the frequency out of a decaying sine wave from a SAW sensor. Now I pull cardiac output out of an arm cuff’s oscillometric envelope. Different physics, same signal-processing tricks. Watch one morph into the other:

2018 Damped sine wave SAW resonator · IEEE
2025 Oscillometric envelope Arm cuff · Sci Reports · medRxiv

The arc

  1. 2012–2016 BS · Amirkabir

    BS in Digital Electronics

    Digital electronics and embedded systems. BS thesis: a test setup that measures the software and hardware parameters of an engine control unit (ECU). My first instrumentation project.

  2. 2016–2018 MS thesis · University of Tehran

    Frequency estimation for SAW resonator sensors

    MS in Integrated Circuits (Embedded Systems). Alongside CMOS analog and mixed-signal design — amplifiers, filters, ADCs, noise budgets — my thesis pulled the resonant frequency of a SAW resonator out of its damped-sine response: FFT plus parabolic interpolation, with a small neural network to clean up the residual, implemented on a microcontroller. This is where the signal-processing thread starts.

    IEEE ICSPIS 2019 — NN+FFT method (Best Paper) → IEEE ICEE 2018 — FFT-based detection → IRSS 2019 — FFT limitations →
  3. 2019–2022 Industry · Tosan Co.

    14-layer PCB · FPGA signal chains

    Three years as a Digital Electronics Engineer (Project Lead) at Tosan, on signal processing for an electrical-motorcycle control unit. Led 14-layer DSP/IF board design through to mass production: PDN, EMI/EMC, thermal sign-off. FPGA signal chains on Artix-7 and Kintex-7.

  4. Aug 2022 PhD start · Pitt

    PhD start at Pitt · Mukkamala lab

    Bioengineering, Biosignals track. Joint coursework at CMU: ML, ML in healthcare, DSP, biostatistics. The move from electronics into clinical physiology.

  5. 2023 First conference talk

    Toward reproducible Valsalva responses

    First IEEE-EMBS conference: why the Valsalva maneuver is hard to reproduce across patients and devices.

  6. 2024 Co-authored paper

    Air-volume for oscillometric BP

    Co-authored work: incorporating cuff air volume alongside pressure improves oscillometric BP. Plus a piece in Analysis & Sensing on self-powered wearable pressure sensors.

    Analysis & Sensing 2024 — wearable pressure sensors →
  7. 2025 Sci Reports + Smart Cuff

    A double year

    Two papers, two prizes. The Sci Reports paper showed a popular home BP monitor uses a variable ratio driven by the max oscillogram amplitude (errors 5.8/1.5 → 1.5/0.8 mmHg). The Smart Cuff cardiac-output paper matched invasive pulse-contour (r=0.60, 83% concordance) in 34 surgical patients — Outstanding Abstract at MACSOS, Top Poster at Safar.

    medRxiv 2025 — Cuff-based cardiac output → Sci Reports 2025 — max-amplitude BP method → Smart Cuff case study →
  8. 2026 · now In flight

    Sub-diastolic continuous tracking · graduating Dec 2026

    Smart Cuff dataset locked, preprint in revision, prototype now holds the cuff below DBP for continuous tracking. Two more prizes in 2026: Top Prize at the Safar Symposium and Professional Development Award at the 19th Research Symposium (University of Pittsburgh). Graduating in December 2026; available early 2027.

    Roles I’m targeting → Email me →

Now

  • medRxiv revision — addressing reviewer comments on the cardiac-output paper, then submitting to a journal.
  • Sub-diastolic hold prototype — closed-loop pressure tracking under DBP, with PDA + recalibration. Safety layers come first.
  • Real-time quality scorer — one number per measurement, from harmonic SNR, motion, and arrhythmia detection, so a bad reading is flagged instead of reported.
  • Toolbox — adding a Bland–Altman builder and a PPG quality scorer.