| 摘要 |
This application describes techniques that mitigate the problems of range walk where fast moving objects are detected using pulsed target detection systems having relatively long dwell times. A pulse generator ( 102) for a pulsed target detection system (101 ) is disclosed which controls generation of a series of pulses (104) to be transmitted by the target detection system. The time between pulses and pulse characteristics are controlled such that any range migration due to target (107) movement in the time between pulses of said series is substantially equal and opposite to any variation in range-Doppler coupling between the pulses due to said target movement. By controlling the transmitted pulses in this way any potential variation in range cell due to target motion is offset by an equal and opposite variation in range- Doppler coupling, whatever the target radial velocity ( |
