Abstract: An imaging system including a transmitter configured to transmit a signal in a direction of a scene of interest. The transmitted signal is spatially and temporally incoherent at a point where the transmitted signal reaches the scene of interest. The system includes a receiver set including at least a first receiver and a second receiver. The first receiver and the second receiver are configured to receive a reflected signal. The reflected signal is a reflection of the transmitted signal from the scene of interest. The system further includes an active incoherent millimeter-wave image processor configured to obtain the reflected signal and reconstruct a scene based on the reflected signal. The system also includes a display device configured to display the scene.

Abstract: A harmonic radar apparatus includes a transmitter configured to transmit a plurality of fundamental frequencies towards a scene. A further aspect of the harmonic radar apparatus includes a receiver configured to receive a reflected signal from the scene, the reflected signal being modulated based on the scene, and a re-radiated signal from a tag, the re-radiated signal being at a harmonic frequency of at least one of the plurality of fundamental frequencies transmitted by the transmitter.

Abstract: A passive incoherent millimeter-wave imaging system includes a receiver array including a plurality of receive modules configured to receive a scene signal reflected from a scene. The scene signal is reflected in response to a plurality of incoherent communication signals being reflected off the scene, and the plurality of incoherent communication signals are spatially and temporally incoherent at a point when reaching the scene.

Abstract: Inferring product activity includes providing a first product having an attached first harmonic tag; directing, at a first area in which the first product is located, a first transmitted signal of a first frequency; and receiving a first return signal of a first return frequency from the first harmonic tag, wherein the first harmonic tag, upon receiving the first transmitted signal, radiates the first return signal, such that the first return frequency is a harmonic of the first frequency. A computer can then infer, based on the first return signal, a first activity in which the first product is being used.

Abstract: An imaging system including a transmitter configured to transmit a signal in a direction of a scene of interest. The transmitted signal is spatially and temporally incoherent at a point where the transmitted signal reaches the scene of interest. The system includes a receiver set including at least a first receiver and a second receiver. The first receiver and the second receiver are configured to receive a reflected signal. The reflected signal is a reflection of the transmitted signal from the scene of interest. The system further includes an active incoherent millimeter-wave image processor configured to obtain the reflected signal and reconstruct a scene based on the reflected signal. The system also includes a display device configured to display the scene.

Abstract: A gesture recognition system includes a transmitting antenna configured to transmit a signal generated by a transmitter onto an object. The system includes a receiving antenna device configured to receive a reflected signal. The reflected signal is a reflection of the transmitted signal, reflected off the object. The system includes a receiver configured to process the reflected signal.

Abstract: A passive incoherent millimeter-wave imaging system includes a receiver array including a plurality of receive modules configured to receive a scene signal reflected from a scene. The scene signal is reflected in response to a plurality of incoherent communication signals being reflected off the scene, and the plurality of incoherent communication signals are spatially and temporally incoherent at a point when reaching the scene.

Abstract: A harmonic radar apparatus includes a transmitter configured to transmit a plurality of fundamental frequencies towards a scene. A further aspect of the harmonic radar apparatus includes a receiver configured to receive a reflected signal from the scene, the reflected signal being modulated based on the scene, and a re-radiated signal from a tag, the re-radiated signal being at a harmonic frequency of at least one of the plurality of fundamental frequencies transmitted by the transmitter.

Abstract: Inferring product activity includes providing a first product having an attached first harmonic tag; directing, at a first area in which the first product is located, a first transmitted signal of a first frequency; and receiving a first return signal of a first return frequency from the first harmonic tag, wherein the first harmonic tag, upon receiving the first transmitted signal, radiates the first return signal, such that the first return frequency is a harmonic of the first frequency. A computer can then infer, based on the first return signal, a first activity in which the first product is being used.

Abstract: Apparatuses and methods for implementing a photonic radio front end are provided. An example apparatus may include a photonic comb filter configured to generate a photonic pulse train at a plurality of carrier frequencies, and a photonic upconverter. The photonic upconverter may be configured to receive outbound data from a data source, and encode and photomix the outbound data onto each of the carrier frequencies within the plurality of carrier frequencies to generate associated upconverted waveforms on each of the carrier frequencies. The apparatus may further comprise a transmit channel selector configured to receive the upconverted waveforms on each of the carrier frequencies, receive a control signal selecting one or more carrier frequencies for transmission of the outbound data, and filter out the upconverted waveforms at unselected carrier frequencies to provide upconverted waveforms at the selected carrier frequencies.

Abstract: Apparatuses and methods for implementing a photonic radio front end are provided. An example apparatus may include a photonic comb filter configured to generate a photonic pulse train at a plurality of carrier frequencies, and a photonic upconverter. The photonic upconverter may be configured to receive outbound data from a data source, and encode and photomix the outbound data onto each of the carrier frequencies within the plurality of carrier frequencies to generate associated upconverted waveforms on each of the carrier frequencies. The apparatus may further comprise a transmit channel selector configured to receive the upconverted waveforms on each of the carrier frequencies, receive a control signal selecting one or more carrier frequencies for transmission of the outbound data, and filter out the upconverted waveforms at unselected carrier frequencies to provide upconverted waveforms at the selected carrier frequencies.