Ultra wideband data transmission system and method
AssigneeMultispectral Solutions, Inc.
InventorsJ. Frederick Larrick, Jr., Robert J. Fontana
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AssigneeMultispectral Solutions, Inc.
InventorsJ. Frederick Larrick, Jr., Robert J. Fontana
Estimating the term…
A data-modulated ultra wideband transmitter that modulates the phase, frequency, bandwidth, amplitude and/or attenuation of ultra-wideband (UWB) pulses. The transmitter confines or band-limits UWB signals within spectral limits for use in communication, positioning, and/or radar applications. One embodiment comprises a low-level UWB source (e.g., an impulse generator or time-gated oscillator (fixed or voltage-controlled)), a waveform adapter (e.g., digital or analog filter, pulse shaper, and/or voltage variable attenuator), a power amplifier, and an antenna to radiate a band-limited and/or modulated UWB or wideband signals. In a special case where the oscillator has zero frequency and outputs a DC bias, a low-level impulse generator impulse-excites a bandpass filter to produce an UWB signal having an adjustable center frequency and desired bandwidth based on a characteristic of the filter. In another embodiment, a low-level impulse signal is approximated by a time-gated continuous-wave oscillator to produce an extremely wide bandwidth pulse with deterministic center frequency and bandwidth characteristics. The UWB signal may be modulated to carry multi-megabit per second digital data, or may be used in object detection or for ranging applications. Activation of the power amplifier may be time-gated in cadence with the UWB source thereby to reduce inter-pulse power consumption. The UWB transmitter is capable of extremely high pulse repetition frequencies (PRFs) and data rates in the hundreds of megabits per second or more, frequency agility on a pulse-to-pulse basis allowing frequency hopping if desired, and extensibility from below HF to millimeter wave frequencies.
A method of producing band-limited ultra-wideband data transmissions comprising a series of UWB data signals representing digital data, said method comprising:
A method of producing ultra-wideband data transmissions comprising a series of UWB signals representing digital data, said method comprising:
A method of producing band-limited ultra-wideband data transmissions comprising a series of UWB data signals representing digital data, said method comprising:
A method of producing QAM-modulated UWB data signals representing digital data, said method comprising:
A method of producing PSK-modulated UWB data signals representative of digital data, said method comprising:
A method of producing M-ary modulated UWB data signals representative of digital data, said method comprising:
A method of producing M-ary modulated UWB data signals representative of digital data, said method comprising:
A band-limited, ultra-wideband data transmission system that transmits a series of UWB signals representing digital data, said system comprising:
A phase-modulated ultra-wideband data transmission system for transmitting a series of signals representing digital data, said system comprising:
An UWB data transmission system that transmits a series of UWB signals representing digital data, said system comprising:
An UWB data transmission system that transmits a series of UWB signals representing digital data, said system comprising:
A QAM-modulated UWB data transmission system that transmits a series of signals representative of digital data, said system comprising:
A PSK-modulated UWB data transmission system that transmits a series of signals representative of digital data, said system comprising:
An M-ary modulated UWB signal transmitter that transmits a series of short data-bearing signals representative of digital data, said transmitter comprising:
Dependencies are inferred from the claim text.