Abstract: Embodiments of a sampling system and a method for sampling are disclosed. In an embodiment, a sampling system includes sampling cells, the sampling cells are distributed into sampling channels, and the sampling cells in the sampling channels are driven by sampling clock pulses with respective phase offsets.

Abstract: A calibration unit for a sampling system, a sampling system and a method for sampling. The calibration unit for a sampling system includes an oscillator having a number of cycles, a digital counter configured to capture a count value that is representative of a time duration to complete the number of cycles, a digital integrator configured to accumulate a difference between a predetermined count value and the captured count value, and a digital to analog converter (DAC) configured to translate an output from the digital integrator to an analog input for delay cells in the sampling system.

Abstract: Methods and system for signal sampling using spatial dispersion are disclosed. In an example, a system includes a time-to-wavelength dispersion system configured to generate a wavelength dispersed optical pulse that is modulated according to an input signal, a wavelength-to-space dispersion system configured to spatially disperse the wavelength dispersed optical pulse by wavelength to produce a spatially dispersed optical pulse, a sensor system configured to convert the spatially dispersed optical pulse to electrical signals, the sensor system including a two-dimensional (2D) array of photodetectors, and a processor configured to decode the electrical signals to generate information about the input signal.

Abstract: Event-based sensor systems and method for operating event-based sensor systems are disclosed. A sensor system includes an array of sensor elements arranged in columns and rows, wherein each sensor element in the array of sensor elements includes, a detector circuit, an active pixel sensor (APS) circuit, and a dynamic vision sensor (DVS) circuit, the DVS circuit including an event trigger switch configured to control application of a signal on an event trigger line in response to a pixel-specific event trigger signal.

Abstract: Methods and systems and method for calibrating a time-interleaved Analog to Digital Converter (TIADC) are disclosed. In an example, a method for calibrating a TIADC involves a first calibration phase that involves adjusting for at least one of offset error, gain error, and time skew of M subchannels of the TIADC, and a second calibration phase that is implemented after the first calibration phase and that involves training a neural network to approximate a non-linear function of each of the M subchannels of the TIADC using an output from a reference channel as a ground truth.

Abstract: Methods and system for signal sampling using spatial dispersion are disclosed. In an example, a system includes a time-to-wavelength dispersion system configured to generate a wavelength dispersed optical pulse that is modulated according to an input signal, a wavelength-to-space dispersion system configured to spatially disperse the wavelength dispersed optical pulse by wavelength to produce a spatially dispersed optical pulse, a Fast Fourier Transform (FFT) optical system configured to transform the spatially dispersed optical pulse into a frequency domain transformed optical pulse, a sensor system configured to convert the frequency domain transformed optical pulse to electrical signals, the sensor system including a two-dimensional (2D) array of photodetectors, and a processor configured to determine frequency information about the input signal from the electrical signals.

Abstract: Analog-to-information converter and method for performing analog-to-information conversion samples and down-converts N samples of an input multi-band signal using M analog sampling filters or samplers, where N is less than M. The N samples of the input multi-band signal are digitized to produce N digital samples of the input multi-band signal, which are multiplexed into M digital samples of the input multi-band signal. The M digital samples are up-converted and filtered at M digital reconstruction filters to produce a digital multi-band signal, which is processed at a processing unit to obtain information contained in the digital multi-band signal.

Abstract: Collision avoidance is an important issue for unmanned autonomous vehicles (UAVs). As such, UAVs can be outfitted with a simple and inexpensive sensor for use in collision avoidance. The sensor can be attached to a gimbal and can include a RADAR transmit antenna, a RADAR receive antenna, and an optical camera. The RADAR transmit antenna and RADAR receive antenna are part of a RADAR system. The optical camera and the RADAR system are bore sighted to one another by aligning their fields of view. The optical camera captures an image of a target when the RADAR system indicates the target is in the field of view. The RADAR system and image data can be used to determine a target trajectory. The target trajectory can be used to avoid a collision with the target.

Abstract: A signal processing system for an imaging device is provided. The signal processing system includes: a plurality of readout circuitries that are connected in parallel, where each readout circuitry includes: one or more interface circuits to receive an analog signal; an analog-to-digital converter (ADC) circuit to convert the analog signal to a digital signal; and a plurality of switches coupled between the ADC circuit and a plurality of storage circuits, where the plurality of switches includes a first switch and a second switch; a controller to: (i) control the first switch to decouple the ADC circuit from a first storage circuit, where the first storage circuit stores a previous digital signal of a previous iteration; and (ii) control the second switch to couple the ADC circuit to the second storage circuit, where the second storage circuit stores a current digital signal; and a transmitter to transmit the previous digital signal.