Talk:Radar scalloping
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Added the article for radar scalloping to clean up the article on pulse-Doppler radar.Nanoatzin (talk) 06:57, 4 August 2011 (UTC)
PRF Interleaving Appears Incorrect: Needs fact-check
[edit]The following comes to the opposite conclusion of its own logic, to wit:
These detection gaps are filled in by using three or more alternating PRF in the detection scheme [why 3? 2 is sufficient]. An L-Band transmitter using a 3 kHz and 4 kHz PRF pair has the following characteristics. 3 kHz blind ranges are 50 km, 100 km, ... 3 kHz blind velocities are 450 km/s, 900 km/s, ... 4 kHz blind ranges are 37.5 km, 75 km, ... 4 kHz blind velocities are 600 km/s, 1,200 km/s, ... This system would fail to detect reflections at 50 km and 100 km that are moving 600 km/s or 1,200 km/s. It would also fail to detect reflections at 37.5 km and 75 km that are moving 450 km/s or 900 km/s.
This is not the result of interleaving PRF signals: the blind spot of the 3kHz sweep will be seen by the 4kHz sweep and vice-versa. The system is trading update frequency for the elimination of blind spots. That's the entire point of interleaving PRF. 98.168.6.70 (talk) 16:00, 7 March 2024 (UTC)