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Updated: Aug 6, 2026
10:53
A Novel Application of Musculoskeletal Ultrasound Imaging
Published on: September 17, 2013
New technology in wound ballistics: the Doppler radar
P J Knudsen1, J Svender, O H Sørensen
1Institute of Pathology, Aarhus University Hospital, Kommunehospitalet, Denmark.
The Journal of Trauma
|March 1, 1996
Summary
Doppler radar accurately measures bullet velocity with less than 1% deviation, offering a simpler and safer alternative to photocells. Further research is needed to precisely measure bullet yaw angles.
Area of Science:
- Ballistics
- Forensic Science
- Biomechanical Engineering
Background:
- Accurate bullet velocity and yaw angle measurements are crucial for ballistics analysis and forensic investigations.
- Traditional methods like photocells have limitations in accuracy and setup complexity.
Purpose of the Study:
- To investigate the feasibility of using Doppler radar for precise bullet velocity and yaw angle determination.
- To compare Doppler radar measurements with traditional photocell methods.
- To assess the potential of Doppler radar in forensic and ballistics applications.
Main Methods:
- Anesthetized pigs were used as targets at a 9-10 meter range.
- Bullet velocities were measured using both Doppler radar and photocells.
- Doppler radar was employed to track bullet trajectory, velocity, and yaw angles.
Main Results:
- Doppler radar demonstrated excellent agreement with photocells for entry and exit velocities (low/medium caliber), with <1% deviation.
- High-velocity bullet exit velocity measurements were complicated by tissue fragments and bullet deflection.
- Doppler radar successfully tracked small caliber bullets (15-20m) and detected yaw, unaffected by additional equipment.
Conclusions:
- Doppler radar provides a highly accurate, simple, and safe method for measuring bullet velocity.
- The system shows promise for determining bullet stability and yaw angles, though further refinement is required for exact measurements.
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