The Radar Blind Speed conversion calculator determines the radar blind speed and wavelength for a given operating frequency and pulse repetition time (PRT). Blind speed occurs when a target’s Doppler frequency shift matches the radar’s pulse repetition frequency, making the target temporarily undetectable. This tool helps radar engineers optimize pulse settings to minimize detection gaps.
Formulas
λ = c / f
v = (λ × 10⁹) / (2 × PRT)
Formula Explanation
- λ is the radar signal wavelength in meters.
- c is the speed of light, 299,792,458 m/s.
- f is the radar operating frequency in hertz (Hz).
- PRT is the pulse repetition time in microseconds (µs).
- v is the radar blind speed in meters per second (m/s).
- The factor of 10⁹ converts microseconds to seconds for consistency in units.
Uses of this calculator
- Determining radar blind speeds to avoid target detection loss.
- Analyzing Doppler effects in pulsed radar systems.
- Designing radar systems with optimal PRT and frequency settings.
- Improving accuracy in radar-based speed and range detection.
What is the radar blind speed for a 10 GHz radar with 500 µs pulse repetition time?
Input: f = 10 GHz, PRT = 500 µs
Output:
- λ = 3e8 / 10e9 = 0.03 m
- v = (0.03 × 10⁹) / (2 × 500) = 30,000,000 / 1000 = 30,000 m/s
- Radar Blind Speed = 30,000 m/s