GLOBAL POSITIONING SYSTEM PHASED ARRAY USING ALL-DIGITAL BEAM FORMING AND DIRECT DIGITAL WAVEFORM SYNTHESIS METHODS
First Claim
1. An apparatus comprising:
- a Global Positioning System (GPS) phased array comprising a plurality of digital beam forming elements (DBFEs), wherein at least one of the DBFEs comprises;
an antenna configured to receive a GPS signal;
a radio frequency (RF) electronics section operably connected to the antenna; and
a digital electronics section operably connected to the RF electronics section.
1 Assignment
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Accused Products
Abstract
An apparatus includes: a Global Positioning System (GPS) phased array comprising a plurality of digital beam forming elements (DBFEs), wherein at least one of the DBFEs includes: an antenna configured to transmit a GPS signal; a radio frequency (RF) electronics section operably connected to the antenna and digital electronics sections; and a digital electronics section operably connected to the RF electronics section. An apparatus includes: a GPS phased array comprising a plurality of DBFEs, wherein at least one of the DBFEs includes: an antenna configured to transmit a GPS signal; an RF electronics section operably connected to the antenna and digital electronics sections; and a digital electronics section operably connected an RF electronic section; a navigation encoder and frequency generator (NEFU) unit operably connected to the GPS phased array; and an atomic frequency standard operably connected to the NEFU unit.
18 Citations
30 Claims
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1. An apparatus comprising:
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a Global Positioning System (GPS) phased array comprising a plurality of digital beam forming elements (DBFEs), wherein at least one of the DBFEs comprises; an antenna configured to receive a GPS signal; a radio frequency (RF) electronics section operably connected to the antenna; and a digital electronics section operably connected to the RF electronics section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus comprising:
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a Global Positioning System (GPS) phased array comprising a plurality of digital beam forming elements (DBFEs), wherein at least one of the DBFEs comprises; an antenna configured to receive a GPS signal; a radio frequency (RF) electronics section operably connected to the antenna; and a digital electronics section operably connected to the RF electronics section; a navigation encoder and frequency generator (NEFU) unit operably connected to the GPS phased array; and an atomic frequency standard operably connected to the NEFU unit. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. An apparatus comprising:
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a Global Positioning System (GPS) phased array comprising a plurality of digital beam forming elements (DBFEs), wherein at least one of the DBFEs comprises; an antenna configured to transmit a GPS signal; a radio frequency (RF) electronics section operably connected to the antenna, wherein the RF electronics section comprises; one or more digital amplifiers; one or more filters operably connected to at least one of the one or more digital amplifiers, and an analog combiner operably connected to at least one of the one or more filters; a digital electronics section operably connected to the RF electronics section, wherein the digital electronics section comprises; a digital application-specific integrated circuit (ASIC), wherein the ASIC comprises one or more of a digital waveform generator, a quantization unit configured to perform N-bit quantization, and a dithering unit configured to generate pseudo-random noise (PRN) codes; and a digital multiplexer operably connected to the ASIC; and a navigation encoder and frequency generator (NEFU) unit comprising; a navigation data repository operably connected to the ASIC; and a frequency synthesizer operably connected to the ASIC; and an atomic frequency standard operably connected to the frequency synthesizer. - View Dependent Claims (30)
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Specification