System and method for joint radar-sensing and communication waveform utilizing unique word OFDM (UW-OFDM)
AssigneeUniversity of South Florida
InventorsHuseyin Arslan, Mehmet Mert Sahin
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Abstract
A system and method utilizing a novel waveform structure based on unique word (UW)-orthogonal frequency division multiplexing (OFDM) is proposed for the applications of joint radar-sensing and communication (JRC). A predetermined chirp sequence is used as the UW in the waveform. The predetermined chirp sequence is used to perform radar functionality, which also increases power efficiency of linear power amplifier that is critical for radar applications.
Claims19
A method for assembling unique word (UW)-orthogonal frequency division multiplexing (OFDM) data symbols for use in joint radar-sensing and communication (JRC), the method comprising:
- generating OFDM time domain symbols at an output of an N-point inverse fast Fourier transformation (IFFT) block of a transmitter;
- and
- adding a predetermined chirp sequence in the OFDM time domain symbols to assemble UW-OFDM symbols having a chirp sequence, wherein the UW is the predetermined chirp sequence for joint radar-sensing and communication (JRC).
A method for assembling unique word (UW)-orthogonal frequency division multiplexing (OFDM) data symbols for use in joint radar-sensing and communication (JRC), the method comprising:
- providing OFDM frequency domain symbols to a code generator matrix of a transmitter to introduce redundancy into the OFDM frequency domain symbols;
- modulating the OFDM frequency domain symbols having redundancy on a plurality of subcarriers using the IFFT block to generate OFDM time domain symbols;
- and
- adding a predetermined chirp sequence in the OFDM frequency domain symbols to assemble UW-OFDM symbols having a chirp sequence, wherein the UW is the predetermined chirp sequence for joint radar-sensing and communication (JRC).
A transmitter for assembling unique word (UW)-orthogonal frequency division multiplexing (OFDM) data symbols for use in joint radar-sensing and communication (JRC), the transmitter comprising:
- an N-point inverse fast Fourier transformation (IFFT) block to generate OFDM time domain symbols at an output;
- and
- the transmitter to add a predetermined chirp sequence in the OFDM time domain symbols to assemble UW-OFDM symbols having a chirp sequence, wherein the UW is the predetermined chirp sequence for joint radar-sensing and communication (JRC).
Dependencies are inferred from the claim text.