Pulse doppler proximity sensor

Details Pulse doppler proximity sensor Pulse doppler proximity sensor

1992-03-02

1996-07-23

Pihulic, Daniel T.

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

Return signal controls external device

Proximity fuze

342131, 102214, F42C 1304

Patent

active

055394108

ABSTRACT:
A pulse Doppler proximity sensor uses a plurality of stepped output radio signals for accurately determining the relative range between the proximity sensor and an object. A dual modulation technique is employed which incorporates a pulse modulation arrangement and a carrier frequency modulation arrangement to detect the necessary range accurately from the plurality of output radio signals. The proximity sensor processes in parallel each of the plurality of output radio signals returned from the object. A binary comparison is made and the comparison is integrated over time to prevent false alarms. The pulse Doppler proximity sensor is particularly useful in fuzing arrangements for a munition in which a number of range settings are desired.

REFERENCES:
patent: 3161874 (1964-12-01), Page
patent: 3889261 (1975-06-01), Sirven
patent: 4059052 (1977-11-01), Karr
patent: 4450444 (1984-05-01), Wehner et al.
patent: 4622555 (1986-11-01), Doggett et al.
patent: 4914441 (1990-04-01), Brookner
patent: 5053772 (1991-10-01), Lamper et al.

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