Communications: directive radio wave systems and devices (e.g. – Determining direction
Patent
1985-06-24
1989-09-26
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Determining direction
342196, 342432, 342442, G01S 502
Patent
active
048704202
ABSTRACT:
A novel radio receiver capable of simultaneously and instantaneously determining the frequency and azimuthal and elevational position of many radio signal sources is disclosed. The invention makes use of an antenna array and associated beamforming networks capable of producing an omnidirectional reference signal, and a directional signal in which amplitude depends upon the relative elevational position of the radio frequency source and complex phase depends upon the relative azimuthal position of a radio frequency source.
The use of a two-dimensional compressive receiver in one embodiment provides a way for instantaneously and reliably producing the Fourier transform of these signals, allowing accurate and continuous measurement of phase and amplitude difference. The antenna geometries disclosed additionally provide such signals for a wide input bandwidth.
REFERENCES:
patent: 2779869 (1957-01-01), Gerks
patent: 3212089 (1965-10-01), Longacre et al.
patent: 3382460 (1968-05-01), Blitz et al.
patent: 3406393 (1968-10-01), Kulik
patent: 3465247 (1969-09-01), Kubo
patent: 3560852 (1971-02-01), Haskin et al.
patent: 3568054 (1971-03-01), Ross
patent: 3670332 (1972-06-01), Blommendaal
patent: 3697997 (1972-10-01), Cooper
patent: 3728730 (1973-04-01), Takao et al.
patent: 3743942 (1973-07-01), Carpenter
patent: 3820025 (1974-06-01), Lahr et al.
patent: 3880147 (1975-04-01), Gruenke et al.
patent: 3982101 (1976-09-01), Kalb et al.
patent: 4150378 (1979-04-01), Barton
patent: 4166980 (1979-09-01), Apostolos et al.
patent: 4170774 (1979-10-01), Schaefer
patent: 4244037 (1981-01-01), Jelks
patent: 4245333 (1981-01-01), Jelks
patent: 4305159 (1981-12-01), Stromswold et al.
patent: 4528567 (1985-07-01), Miles et al.
patent: 4649392 (1987-03-01), Apostolos
Jasik, H., ed., Antenna Engineering Handbook, First Edition (McGraw-Hill, New York, 1961), pp. 18-1 through 18-32.
Morgan, M. and Ash, E., "Acoustic-Surface-Wave Dispersive Delay Line", Proceedings of the IEE, vol. 116, No. 7, Jul. 1969, pp. 1125-1134.
Rhodes, D., Introduction to Monopulse, (McGraw-Hill Book Company; York PA, 1959), pp. 12-15.
Harris, F., "On the Use of Windows for Harmonic Analysis with the Discrete Fourier Transform", IEEE Proceedings, vol. 66, No. 1, Jan. 1978, pp. 55-83.
Sanders Associates Inc.
Sotomayor John B.
Tarcza Thomas H.
Thibodeau, Jr. David J.
Weinstein Stanton D.
LandOfFree
Signal acquisition apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal acquisition apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal acquisition apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-190082