Radar

Details Radar Radar

2005-05-03

2005-05-03

Hellner, Mark (Department: 3663)

Communications: directive radio wave systems and devices (e.g.,

Return signal controls radar system

Receiver

Reexamination Certificate

active

06888492

ABSTRACT:
A radar for a terminally-guided sub-munition is capable of differentiating between spatial depositions of target scatterers and clutter. The radar frequency f is swept, in stepwise manner, over a frequency range F, the frequency of 2N successive batches of M pulses being incremented in steps off=F2⁢N.To minimise variability of hybrid spectrum with relative target velocity, v, a duplexer transmits the 2 NM pulses with a monotonic frequency sequence derived from control circuit and the returns being reordered.

REFERENCES:
patent: 3728724 (1973-04-01), Alpers
patent: 3745578 (1973-07-01), Barrett, Jr. et al.
patent: 3772689 (1973-11-01), Root, Jr.
patent: 3896434 (1975-07-01), Sirven
patent: 4622555 (1986-11-01), Doggett et al.
patent: 4743910 (1988-05-01), Hill et al.

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