Communications: directive radio wave systems and devices (e.g. – Determining distance – With pulse modulation
Patent
1991-03-14
1992-08-11
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Determining distance
With pulse modulation
G01S 1308
Patent
active
051383233
ABSTRACT:
A method and apparatus are disclosed for providing optimum radar beam patterns to provide complete radar coverage at both short ranges and long ranges in a radar system using solid state transmitters. Long pulses for covering long ranges are generated and split into a pair of signals with a specific amplitude and phase relationship. These signals are provided to a transmit beam forming matrix of an array antenna to generate an optimum pattern for long range coverage. Short pulses are generated for providing short range coverage and are split into a pair of signals which are phase shifted differently from the long pulses. These signals are then provided to the transmit beam forming matrix to generate a different beam pattern for providing short range detection. The short range beam pattern has a sufficient amount of energy to provide coverage to maximum desired altitude over a range extending to where echoes from the long pulses may be received undistorted.
REFERENCES:
patent: 4303920 (1981-12-01), Mortimer
patent: 4573050 (1986-02-01), Waters
patent: 4951059 (1990-08-01), Taylor, Jr.
Hellner Mark
Martin T. H.
Westinghouse Electric Corp.
LandOfFree
Method and apparatus for providing optimum radar elevation patte does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for providing optimum radar elevation patte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for providing optimum radar elevation patte will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-349510