Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Patent
1992-06-17
1993-12-28
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
342379, 342383, G01S 316
Patent
active
052743861
ABSTRACT:
A beamformer for a main antenna and a plurality of auxiliary antennas converts the main and each of the auxiliary signals to digital form. Each of the real and auxiliary digital signals is applied to a pair of real multipliers, in which multiplication by beamforming weights is performed, to produce one weighted real main signal, one weighted imaginary main signal, and a plurality of weighted real and weighted imaginary auxiliary signals. The weighted real main and auxiliary signals are summed together by a cascade of summers, and the weighted imaginary main and auxiliary signals are likewise summed together by another summed cascade. A digital product detector is connected to the output of each summer cascade. The first digital product detector produces in-phase and quadrature components of real detected signals, and the second digital product detector produces in-phase and quadrature components of imaginary detected signals. The quadrature imaginary detected signals are subtracted from the in-phase real detected signals, and the in-phase imaginary detected signals are added to the quadrature real detected signals, to produce signals corresponding to the signals received by the main antenna with reduced sidelobes.
REFERENCES:
patent: 4577193 (1986-03-01), Kiuchi et al.
patent: 4720712 (1988-01-01), Brookner et al.
patent: 4734701 (1988-03-01), Grobert
patent: 4779054 (1988-10-01), Monteleone et al.
General Electric Co.
Issing Gregory C.
Meise William H.
Nieves Carlos A.
Young Stephen A.
LandOfFree
Reduced hardware antenna beamformer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reduced hardware antenna beamformer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced hardware antenna beamformer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1546404