Microcontroller-based binary integrator for millimeter-wave radar experiments

Area of Science:

• Electrical Engineering
• Radar Systems Engineering

Background:

• Millimeter radar systems require advanced signal processing for detecting low-level and fluctuating targets.
• On-site reconfigurability is crucial for adapting radar experiments to diverse conditions.

Purpose of the Study:

• To develop and evaluate an easily reconfigurable multiple binary integrator for millimeter radar experiments.
• To enhance the detection capabilities of millimeter radar systems for various target types.

Main Methods:

• Construction of a novel integrator using static random access memories, an eight-bit microcontroller, and high-speed operational amplifiers.
• Implementation of a raw comparator path and two adjustable m-out-of-n chains in a wired-OR configuration.
• Utilizing standard high-speed memories for pulse widths under 100 ns and eight pulse repetition intervals.

Main Results:

• Achieved a maximum improvement of 6.6 dB for stationary low-level target echoes.
• Demonstrated enhanced capability against fluctuating targets through a doubled configuration.
• Successfully processed single return pulses of relatively high amplitude due to the raw comparator path.

Conclusions:

• The developed reconfigurable multiple binary integrator effectively enhances millimeter radar performance.
• The system's design allows for versatile application in diverse radar experimental scenarios.
• The integrator provides significant improvements in detecting both stationary and dynamic targets.