Dual Antenna Magnitude & Phase Detection for Mechanical Cardiac Diagnosis

Alexander Sludds

The Problem

Utility for Diagnosis

Aortic Stenosis

Expected Data

Block Diagram

Signal Sources

Ultrasonic Doppler

2.4GHz doppler

Vector Magnitude Detection

US Patent 3,870,871

XOR Phase Detector Circuit

Automatic Gain Controller

Data Processing : Blind Source Separation

Timeline

Prior to 4/194/20-4/27 4/27-5/4 5/4-5/7

Vector Magnitude Circuit

✔

Phase Detector Circuit

✔

90 degree phase shifter

✔

Phase Compensator

✔

Automatic Gain Controller

✔

FastICA (BSS) Intergation

✔

Ultrasonic Doppler Integration

✔

2.4GHz Doppler Integration

✔

Display Integration ✔

Questions?