Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1982-12-07
1985-09-10
Cangialosi, Salvatore
Communications: electrical
Condition responsive indicating system
Specific condition
343 5PD, G08B 1318
Patent
active
045409781
ABSTRACT:
An intrusion detection apparatus utilizing a plurality of bistatic pulse-overlap Doppler radar units to detect target Doppler frequency shifts in an enclosed sensitive volume and utilizing a single RF frequency with different pulse repetition rates to synchronize the bistatic receiver unit with its associated transmitter unit.
REFERENCES:
patent: 3471845 (1969-10-01), Sokoloff
patent: 3541551 (1970-11-01), Bystrom, Jr. et al.
patent: 3631490 (1971-12-01), Palmieri
patent: 3688298 (1972-08-01), Miller et al.
patent: 4027303 (1977-05-01), Neuwirth et al.
patent: 4132988 (1979-01-01), Blacksmith et al.
Burns Bryan L.
Callahan Michael W.
Cangialosi Salvatore
Kaiser K. R.
Singer Donald J.
Stepanishen William
The United States of America as represented by the Secretary of
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