Pulse based wideband signaling
OwnerFarid Dowla, Faranak Nekoogar +1inventors
InventorsFarid Dowla, Faranak Nekoogar, David Benzel
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Abstract
A system for pulse based wideband signaling comprises a transmitter that performs physical layer encoding of both digital and analog data into a pulse repetition rate signal, and modulation of the pulse repetition rate signal into wideband radio frequency pulses, and transmission of the pulses as a wideband RF signal, a receiver that performs physical layer demodulation of the wideband RF signal into a pulse repetition rate signal, and decoding of the pulse repetition rate signal into digital and analog data, wherein the system provides improvement in controlling and balancing the variables of bandwidth, signal to noise ratio, range, and power consumption.
Claims28
A system for pulse based wideband signaling comprising:
- at least one wideband transmitter for transmitting wideband radio frequency pulses;
- the transmitter having a data input;
- wherein the transmitter comprises a signal chain of a data encoder, a wideband modulator, a power amplifier, and a first antenna;
- the data encoder having a set of specific pulse sequences that are used for encoding data, wherein the data input is encoded as a pulse repetition rate signal to be used in a wideband radio frequency sequence of modulated pulses;
- the wideband modulator having a specific carrier frequency and bandwidth, and producing a wideband modulated sequence of pulses in response to the pulse repetition rate signal;
- the wideband modulated sequence of pulses comprising a plurality of chips, wherein each chip is an individual modulated pulse, and wherein each “0” bit of data comprises a first plurality of chips having a first sequence of chip durations and spacings, and each “1” bit of data comprises a second plurality of chips having a second sequence of chip durations and spacings;
- whereby the transmitter outputs a wideband pulsed radio signal through the power amplifier and the first antenna;
- at least one wideband receiver for receiving data;
- wherein the receiver comprises a signal chain of a second antenna, a baseband conversion stage, a demodulator, and a decoder;
- the second antenna receiving the wideband pulsed radio signal;
- the baseband conversion stage converting the wideband pulsed radio signal to an intermediate frequency pulsed signal;
- wherein the demodulator comprises;
- a signal chain of at least one amplifier stage, a signal splitter with outputs of a radio frequency detector output and an automatic gain control signal, the radio frequency detector output followed by a sample and hold circuit, a high pass filter, and at least a first inverter;
- wherein the first inverter functions as a comparator to produce digital output data from a non-digital or noisy input;
- the demodulator extracting the pulse repetition rate signal from the intermediate frequency pulsed signal;
- the decoder producing a receiver data output in bits from the input of the pulse repetition rate signal, and
- wherein the at least one wideband receiver is configured to correctly decode the pulse repetition rate signal in order to decode data.
Dependencies are inferred from the claim text.