17 results about "Single input multiple output" patented technology

The application discloses an omnidirectional biological radar device and a working method thereof, wherein a FMCW radar is installed on a 360-degree rotating platform, and the high-speed rotating radar is used to simultaneously realize omnidirectional vital sign detection on multiple human targets. The rotating radar platform can not only realize the identification of the existence of people in the surrounding environment, but also estimate the relative angle between the initial position of the radar and the object by using the virtual SIMO (Simple Input Multiple Output) method, so as to finally realize the simultaneous detection of the full-dimensional vital signs of multiple human targets. The realization of the task has important application value for future search and rescue and vital sign detection.

A single-input, multiple-output (SIMO) voltage circuit in a wireless device is provided. Herein, the SIMO voltage circuit is configured to concurrently generate multiple voltages for amplifying multiple signals based on a reference voltage. In an embodiment, the reference voltage is provided by a power management integrated circuit (PMIC) and multiplexed to indicate respective targets of the voltages. Specifically, the SIMO voltage circuit includes multiple holding capacitors, each of which is repeatedly discharged and recharged to maintain a respective one of the voltages during a voltage generation cycle(s). The SIMO voltage circuit also includes multiple local control loops each configured to regulate a respective one of the voltages to thereby match the respective target indicated by the reference voltage. As such, the SIMO voltage circuit can simultaneously supply the voltages based on a single PMIC, thus making it possible to support multiple load circuits with a smaller footprint.

One end of a shaft body is provided with a replaceable input structure, the other end of the shaft body is provided with two spiral bevel gears, the first spiral bevel gear is fixed through a hot jacket, and the second spiral bevel gear achieves axial position adjustment through threaded connection. And the assembly flexibility and the adaptation capability are greatly improved. An external thread structure is further arranged on the shaft body and can be used for installing a third gear, the power output path is expanded, and the requirement of a complex transmission system is met. The through hole is formed in the center of the shaft body, cooling liquid is supported to be directly sprayed to an external machining part from the interior of the shaft, the shaft is suitable for high-precision cutting, numerical control machine tools and other scenes needing the internal cooling function, and the spiral flow guide groove is formed in the shaft, so that the cooling liquid flowing uniformity and conveying efficiency can be effectively improved. The component is convenient for field installation, maintenance and later upgrade, has the advantages of compact structure, stable performance, high universality and the like, and is widely applied to industrial machinery, automatic equipment and intelligent transmission systems.

This application relates to a design method, system, and medium for a single-input multi-output robust speed controller. The method includes: Step 1, establishing a system model; Step 2, constructing a single-input multi-output controlled object; Step 3, robust speed controller design; Step 4, robustness verification; and Step 5, control command execution. This method, by employing a single-input multi-output structure, fully utilizes multi-dimensional state information such as guide vane position, mechanical power, and load angle as auxiliary feedback, and achieves robustness through systematic H... ∞ The optimized design achieves coordinated optimization of each control channel, resulting in overall performance far exceeding that of a single-variable design.

Embodiments disclosed herein relate to impedance matching for outputting broadband signals in radio frequency applications. In an example, a circuit is provided that includes a low noise amplifier (ENA) sub-circuit (115) and a tuning sub-circuit (130). The ENA sub-circuit (115) is configured to be coupled to an antenna (101) and includes: a transistor (118) including a gate, a source, and a drain; a first inductor (116) comprising a first terminal configured to couple to the antenna (101) and comprising a second terminal; a second inductor (117) including a first terminal coupled to the first terminal of the first inductor (116) and including a second terminal coupled to the gate of the transistor (118); and a third inductor (119) including a first terminal coupled to the source of the transistor (118) and including a second terminal. The tuning sub-circuit (130) is coupled to the source of the transistor (118).

The invention relates to the technical field of signal co-frequency interference suppression, and discloses a signal co-frequency interference suppression method used in a formation condition, and the method comprises the steps: obtaining a sending signal vector and a single-input multi-output mode; and calculating a transmission channel coefficient, analyzing a same-frequency interference mode, calculating an interference signal vector in the same-frequency interference mode, and projecting and eliminating the interference signal vector to obtain an actual output signal vector. The method comprises the following steps: constructing an equivalent channel matrix, calculating pseudo-inverse to obtain a weight vector, subtracting the weight vector from a received signal to obtain a same-frequency interference signal, and carrying out same-frequency interference suppression on the signal according to the same-frequency interference signal. The method can solve the problems that in the prior art, residual interference exists, and for formation transmission of multiple fixed nodes, the algorithm is too complex and the calculation complexity is high due to the fact that a traditional beam forming technology is applied.

Disclosed herein is a single-input multi-output resonant regulating rectifier. The single-input multi-output resonant regulating rectifier may include: a conversion circuit unit converting a wireless power alternating current (AC) signal into half-cycle input signals VINN and VINP; and an output generation circuit unit generating a plurality of outputs within a half cycle by generating a plurality of gate signals in a plurality of different regions within each half cycle based on the half-cycle input signal VINN input through the conversion circuit unit.

The invention relates to a method for angle estimation on the basis of transmitted signals of a radar sensor, which is angle-resolved in at least one dimension and which has a multiple-input multiple-output antenna array, and signals received after reflection on an object, said radar sensor being characterized in that, in order to estimate the positioning angle of a radar target, the radar target is positioned on the basis of the radar target. A cross-path model is used which also models the reflection of the transmitted and / or received signal on the reflection surface, characterized in that the angle estimation is carried out on the basis of the simplified cross-path model, a model for a single-input multiple-output mode (48) of the radar sensor is combined with a model for a multiple-input single-output mode (50).

The invention discloses an optimization method for maximizing the summing rate of an RIS-assisted uplink URLLC system, and relates to the technical field of wireless communication, and the optimization method comprises the following steps: S1, constructing a reconfigurable intelligent surface RIS-assisted uplink multi-user URLLC system model which is a single-input-multiple-output SIMO architecture, and establishing a signal transmission mathematical expression according to the system model; s2, constructing a system summation rate maximization problem model based on a communication theory and an optimization theory, and improving the system summation rate maximization problem model through problem conversion; s3, the constraint is converted through an SCA technology, and a single optimal solution is obtained through a BCD algorithm; and S4, based on the single optimal solution obtained in the step S3, solving a suboptimal solution of the original problem through an iterative convergence mode. According to the method, the problem of beam forming optimization of the RIS-assisted uplink URLLC system is solved, particularly, a closed-form solution for receiving beam forming at the BS is provided for the uplink URLLC, and meanwhile, the superiority of the algorithm is proved through parameter simulation.

A system includes one or more computing devices that encode spatial perceptual cues into a monaural channel to generate a plurality of output channels. A computing device determines a target amplitude response for the mid and side channels of the plurality of output channels, defining a spatial perceptual associated with one or more frequency-dependent phase shifts. The computing device determines a transfer function of a single-input, multi-output allpass filter based on the target amplitude response and determines coefficients of the allpass filter based on the transfer function, and processes the monaural channel with the coefficients of the allpass filter to generate the plurality of channels having the encoded spatial perceptual cues. The allpass filter is configured to be colorless with respect to the individual output channels, allowing for the placement of spatial cues into the audio stream to be decoupled from the overall coloration of the audio.

A system and method for automated MIMO force response characterization of a device / structure under test. A SIMO exciter router operates to selectively couple excitation signals input to an exciter device, and sensor data indicative of sensed responses to the applied excitation forces are collected from a plurality of response sensors. The SIMO exciter router operates to collect sensor data for each of a plurality of different exciter-sensor combinations (i.e., sensor data is collected from each individual response sensor while an excitation force is applied by each individual exciter device). The sensor data is collected by a data acquisition system having a plurality of signal input channels each coupled to a different response sensor, or a sensor router is used to selectively couple each individual sensor output to a shared signal input channel of the data acquisition system.

The application discloses an optimization method for sum rate maximization of a RIS-aided uplink URLLC system, and relates to the technical field of wireless communication, and comprises the following steps: S1, a reconfigurable intelligent surface (RIS)-aided uplink multi-user URLLC system model is constructed, the URLLC system model is a single-input multiple-output (SIMO) architecture, and a signal transmission mathematical expression is established according to the system model; S2, a system sum rate maximization problem model is constructed based on communication theory and optimization theory, and the problem model is improved through problem conversion; S3, constraints are converted through SCA technology, and a single optimal solution is obtained through a BCD algorithm; and S4, based on the single optimal solution obtained in step S3, a suboptimal solution of the original problem is obtained through an iterative convergence method. The application solves the beamforming optimization problem of the RIS-aided uplink URLLC system, especially provides a closed-form solution of the receive beamforming at the BS for the uplink URLLC, and the superiority of the algorithm is verified through parameter simulation.

The invention discloses a sequence immittance modeling and stability analysis method for a modular multilevel converter, and belongs to the field of power system control, and the method comprises the steps: carrying out the two-port equivalence of the modular multilevel converter, and obtaining a single-phase two-port network of which one end is an AC port and the other end is a DC port; adding disturbance into the single-phase two-port network to obtain a linearization model, and eliminating an intermediate variable of the linearization model to obtain a single-input multi-output admittance module under a two-port view angle; an admittance module is used for representing the coupling effect of an alternating current port and a direct current port, self-admittance considering alternating current and direct current coupling is obtained, frequency coupling generated by power grid impedance is considered in a controlled source equivalence mode, additional admittance considering frequency coupling is obtained, and the self-admittance is obtained. And adding the self-admittance after the AC / DC coupling is considered and the additional admittance after the frequency coupling is considered to obtain a sequence immittance model of the modular multilevel converter. According to the method, accurate modeling can be carried out on the modular multilevel converter under the grid-connected condition.

A system includes one or more computing devices that encode spatial perceptual cues into a monaural channel to generate a plurality of output channels. A computing device determines a target amplitude response for the mid and side channels of the plurality of output channels, defining a spatial perceptual associated with one or more frequency-dependent phase shifts. The computing device determines a transfer function of a single-input, multi-output allpass filter based on the target amplitude response and determines coefficients of the allpass filter based on the transfer function, and processes the monaural channel with the coefficients of the allpass filter to generate the plurality of channels having the encoded spatial perceptual cues. The allpass filter is configured to be colorless with respect to the individual output channels, allowing for the placement of spatial cues into the audio stream to be decoupled from the overall coloration of the audio.

The present application discloses a single-input multiple-output (SIMO) converter with a controller capable of switching a quiescent state. The system (100) includes an inductor (120) and a first switch (S1) coupled between a first end of the inductor (120) and a voltage supply node (112). The system (100) also includes a second switch (S2) coupled between a first end of the inductor (120) and a negative output supply node (114). The system (100) also includes a third switch (S3) coupled between a second end of the inductor (120) and a positive output supply node (116). The system (100) also includes a fourth switch (S4) coupled between a second end of the inductor (120) and a ground node (118). The system (100) also includes a controller (104) coupled to the first, second, third, and fourth switches. The controller (104) is configured to provide an inductor charging mode, a positive boost mode, a negative boost mode, a first quiescent state involving a first switch (S1), and a second quiescent state involving a fourth switch (S4).

The application discloses a sequence admittance modeling and stability analysis method of a modular multilevel converter, belongs to the field of power system control, carries out two-port equivalence on the modular multilevel converter, obtains a single-phase two-port network with one end being an alternating current port and the other end being a direct current port; adds disturbance in the single-phase two-port network, obtains a linearized model, eliminates intermediate variables of the linearized model, and obtains a single-input multi-output admittance module under a two-port view; the admittance module is used to represent coupling effects of the alternating current port and the direct current port, to obtain self-admittance after considering alternating current-direct current coupling; frequency coupling caused by grid impedance is considered in a controlled source equivalent mode to obtain additional admittance after considering frequency coupling; and the self-admittance after considering alternating current-direct current coupling and the additional admittance after considering frequency coupling are added to obtain a sequence admittance model of the modular multilevel converter. The application can accurately model the modular multilevel converter under grid-connected conditions.