| Patent Number |
Title Of Patent |
Date Issued |
| 6697012 |
Altitude estimation system and method |
February 24, 2004 |
| A system and method for detecting and tracking a target object, including the calculation of the target object's altitude, is disclosed. During the processing of signals received by a receiver, the system selectively calculates the altitude of the target object from signals modified by a |
| 6424290 |
Narrowband passive differential tracking system (U) |
July 23, 2002 |
| The tracking of moving vehicles over long distances without emitting illumination signals is accomplished with a narrowband passive differential tracking system. Instead of Providing especially designed radar transmitters in a bistatic radar system, illuminators of opportunity (which |
| 6137439 |
Continuous wave doppler system with suppression of ground clutter |
October 24, 2000 |
| In a continuous wave Doppler system in which a fixed transmitter transmits a continuous wave signal to be reflected by moving targets and by fixed structure, an aircraft receives the reflective signals at two spaced apart antennas. The signals reflected from moving targets are distinguis |
| 5912640 |
Boost engine cutoff estimation in Doppler measurement system |
June 15, 1999 |
| An estimate of the time of the boost engine cut-off of a missile is provided by irradiating the missile after it is launched with continuous wave signals. The reflected continuous wave signals are detected and an inflection in the Doppler measurements of the reflected continuous wave |
