12 results about "Phase coherence" patented technology

Certain aspects of the present disclosure provide techniques for sending capability information associated with a plurality of antennas of the user equipment (UE), the capability information including a field that indicates whether each antenna group, of a plurality of antenna groups associated with the plurality of antennas, is coherent, wherein a first antenna group of the plurality of antenna groups is coherent and a second antenna group of the plurality of antenna groups is not coherent; and communicating using the first antenna group and the second antenna group in accordance with the capability information.

This disclosure provides a modular control system for quantum systems. The system comprises digital logic configured to generate digital waveform data for multiple channels, multi-channel digital-to-analog converters configured to generate analog outputs, analog front ends connected to the analog outputs, and synchronization circuitry configured to exchange synchronization signals with a peer device. The synchronization circuitry determines phase information according to the synchronization signals and applies phase correction via a baseband signal to a high frequency reference to maintain global timing alignment and phase alignment.

This invention discloses a millimeter-wave high-amplitude and phase-coherent single-pulse sum-difference network, belonging to the field of single-pulse radar. The sum-difference network is a symmetrical planar structure, including two first-order planar magic-Ts, two second-order planar magic-Ts, two 90° twisted waveguides, four 90° waveguide turning structures, and an electromagnetic bandgap structure disposed around the network. The first-order and second-order planar magic-Ts are identical planar magic-Ts, composed of an H-plane power divider and an E-plane waveguide. The electromagnetic bandgap structure includes an interleaved slot electromagnetic bandgap structure and a metal pillar electromagnetic bandgap structure. This invention employs an integrated planar structure, requiring only one-time processing and assembly, significantly reducing processing and assembly errors. Simultaneously, the planar magic-Ts are designed to effectively avoid the inherent dispersion defects of bridges and phase shifters, achieving high amplitude and phase coherence over a wide bandwidth. Furthermore, the use of a hybrid electromagnetic bandgap structure reduces the fabrication difficulty of the device while preventing electromagnetic leakage.

The invention discloses a control method of a multi-piezoelectric ceramic vibration exciter parallel combination system, and relates to the technical field of vibration control and piezoelectric driving, and the method comprises the steps: synchronously collecting the working time sequence waveform of each vibration exciter and the energy consumption flow data of the system, calibrating the waveform, and carrying out the spectrum purity analysis of the energy consumption data to extract the fundamental wave and harmonic wave components. And performing time-frequency domain alignment fusion on the calibrated time sequence waveform and the energy consumption spectrum component, and constructing a system state fusion tensor. And based on the tensor, identifying phase coherence and energy coupling strength among excitation units in the system, and further deducing a global vibration mode and a local instability risk area of the system. And making a dynamic balance control plan according to a deduction result, redistributing output energy of each vibration exciter and coordinating action phases of the vibration exciters. According to the invention, accurate diagnosis and risk prediction of the internal interaction state of the parallel vibration exciter system are realized, and the stability and controllability of cooperative work of the system are improved.

Multiphase energy storage system comprising: - at least two energy storage cells (Z_k), each assigned an individually controllable phase angle (φ_k) relative to a common interconnect reference, - a control unit with an N-phase phase control loop (PLL) configured to charge the cells with phase shift (interleave operation) and discharge them in phase coherence within a defined focus window (Δt_focus), - the control unit temporally concentrates the stored co-energy of several cells onto a short output pulse of high instantaneous power (time focusing), - a side buffer bus (surge manifold, C_pool) with an active clamping path (AUX-FET, L_rec) that absorbs overshoot energy (W_overshoot) from switching and load transients and feeds it back into the cells or the DC link in a targeted manner, - a mirror pulse unit configured to generate a phase-conjugated current ramp pulse,which generates a targeted counter-oscillation to the transient and limits ringing to less than 10% of the peak value. The mirror pulse unit simultaneously feeds recoverable energy (W_rec) into the surge manifold, thereby combining transient attenuation and energy recovery in a single switching operation.

The invention discloses a signal control system with a phase coherence function and a signal phase coherence method. Firstly, a coherent output instruction input by a user and a specified signal coherence channel needing to achieve the phase coherence function on an output signal are monitored; based on the coherent output instruction and a specified signal coherent channel, outputting a phase memory instruction to the signal coherent channel; and finally, performing a phase memory function on the signal output by the signal coherent channel based on the phase memory instruction, so that the signal output by the signal coherent channel has the phase memory function, and the phase returns to the phase of the initial frequency when the initial frequency is changed in the operation process and then switched back. Therefore, phase coherence is generated among the output signals of the memorized channels. The phase coherence recovery function is realized by applying the phase memory function of the signal output channel, so that a predictable and repeatable multi-signal phase relationship is established and maintained, and the phase coherence function is realized more simply, more reliably and more quickly.

Certain aspects of the present disclosure provide techniques for sending capability information associated with a plurality of antennas of the user equipment (UE), the capability information including a field that indicates whether each antenna group, of a plurality of antenna groups associated with the plurality of antennas, is coherent, wherein a first antenna group of the plurality of antenna groups is coherent and a second antenna group of the plurality of antenna groups is not coherent; and communicating using the first antenna group and the second antenna group in accordance with the capability information.

This invention relates to the field of nondestructive testing (NDT) technology, specifically disclosing an ultrasonic NDT method based on full-matrix data transfer and phase coherence, used to detect internal damage defects in planar multilayer structures in equipment such as pressure vessels. This method utilizes the time-domain echo signal received by an ultrasonic phased array body wave probe, combined with frequency-domain phase shift transfer of the full-matrix dataset to achieve rapid extrapolation of the wave field, improving the algorithm's time efficiency by avoiding interface refraction operations of the time-domain signal. Based on the explosion reflection model, the time-domain dataset of the target region is extracted, and combined with a phase-coherence weighted full-focusing imaging algorithm, accurate localization of internal damage within the target layer of the planar multilayer structure is achieved. Experimental results show that this invention has high accuracy and resolution in defect localization imaging of planar multilayer structures, and is suitable for the inspection and maintenance of planar multilayer walls in equipment such as pressure vessels.

Methods, systems, and devices for wireless communications are described. Devices may exchange multi-port phase continuity reference signals. A receiving device may determine a phase coherence between a first port and a second port. Based on the phase coherence, the receiving device may select a configuration for phase continuity reference signals including an association between one or more first ports associated with communication of demodulation reference signals (DMRSs) and one or more second ports associated with communication of the phase continuity reference signals. The receiving device may receive one or more phase continuity reference signals in accordance with the configuration, the one or more phase continuity reference signals associated with estimation of a phase discontinuity between the first port and the second port. The receiving device may perform channel estimation for the first port and the second port in accordance with the one or more phase continuity reference signals.

Methods, systems, and devices for wireless communications are described. Devices may exchange multi-port phase continuity reference signals. A receiving device may determine a phase coherence between a first port and a second port. Based on the phase coherence, the receiving device may select a configuration for phase continuity reference signals including an association between one or more first ports associated with communication of demodulation reference signals (DMRSs) and one or more second ports associated with communication of the phase continuity reference signals. The receiving device may receive one or more phase continuity reference signals in accordance with the configuration, the one or more phase continuity reference signals associated with estimation of a phase discontinuity between the first port and the second port. The receiving device may perform channel estimation for the first port and the second port in accordance with the one or more phase continuity reference signals.

A method includes receiving by a device, capable of maintaining at least one of receiver phase coherence or amplitude coherence of one or more received signals in one or more time units, from a network node, a configuration of reference signal resources, receiving reference signals via the configured reference signal resources, acquiring, based on measurements on the reference signals, downlink channel state information (CSI) associated with antenna ports of the configured reference signal resources over the one or more time units, while maintaining at least one of the receiver phase coherence or the amplitude coherence over the one or more time units.

A first node may transmit a set of sensing signals. The first node may transmit a phase coherence indication based on a set of phase coherence discontinuities associated with the set of sensing signals to a second node. The second node may receive the set of sensing signals. The set of sensing signals received by the second node may be reflected off of a target object. The second node may receive the phase coherence indication based on the set of phase coherence discontinuities associated with the set of sensing signals. The second node may measure the set of sensing signals based on the phase coherence indication. The first node may be a transmitter node. The second node may be a receiver node. The first or second node may be one of a transmission reception point (TRP), a user equipment (UE), a sensing reference unit, or a positioning reference unit.