7 results about "Pulse calibration" patented technology

The invention relates to the technical field of filtering processing, in particular to a double-optical-comb photoacoustic signal self-adaptive filtering system which comprises a pulse calibration module, a phase calculation module, a trend recognition module, a filtering control module and a result output module. According to the invention, accurate identification of periodic components is realized by acquiring main pulse time positioning information and extracting a signal symmetric section, and dynamic monitoring of signal structure stability is realized through phase angle calculation and sudden change identification. A state label is judged according to the change trend of a phase difference value, an updating rate factor is set to achieve accurate control over the filter weight adjusting rhythm, filter weight instruction output is controlled through logic judgment based on the historical step length state, output continuity is verified, and the adaptability and stability of the filtering process are effectively improved. Under a complex background, the holding capacity of target signal features is enhanced, the influence of non-stationary noise is suppressed, and the overall signal-to-noise ratio and the reliability of the filter are improved.

The invention discloses an anti-noise image recognition method and system, and relates to the technical field of neuromorphic calculation, image recognition and brain-like hardware control, and the system comprises an input module, a noise estimation module, a controller module, a synaptic array module, a read-out / classification module, a near-infrared erasure reset module and a one-way electric rewrite-in calibration module. The synaptic array has the characteristics of electrical stimulation one-way programming-near-infrared light erasure reset; according to the method, the noise density of an input image is calculated, and a result and confidence are obtained through initial reasoning of a synaptic array; when the noise density is larger than or equal to a preset noise density threshold value or the confidence coefficient is smaller than or equal to a preset confidence coefficient threshold value, triggering a near-infrared light erasing reset array, applying single-polarity electric pulse calibration in a dark state, and then reasoning output, a selectable grading strategy and a voting mechanism; according to the scheme, closed-loop reset calibration is formed, recognition robustness and long-term stability under medium and high noise are improved, end side energy consumption is reduced, and the method is suitable for a low-power-consumption visual recognition scene.

The application discloses a large-current constant current source control method based on a reinforcement learning algorithm, and belongs to the technical field of intelligent control of power electronic devices. In view of the problems of low control precision, slow dynamic response and poor load adaptability of an existing large-current constant current source, the method initializes a Q table through pulse calibration data to reduce invalid exploration of reinforcement learning; an improved reward and punishment return function and a load feedforward compensation mechanism are introduced to realize load disturbance prediction and early inhibition; an epsilon-greedy method is used to optimize PID parameters and the optimal parameters are selected through comprehensive scoring; and a double-current loop topology is constructed to realize fast response by using transformer leakage inductance to replace LC filtering. The application makes the current precision of the constant current source greater than or equal to 98%, the total harmonic distortion less than or equal to 1%, can adapt to a wide range of loads, and the stability is significantly improved, and is suitable for high-precision large-current scenes such as industrial electrolysis, new energy battery testing and high-power motor driving.

The invention discloses a large-current constant-current source control method based on a reinforcement learning algorithm, belongs to the technical field of intelligent control of power electronic devices, and aims to solve the problems that an existing large-current constant-current source is low in control precision, slow in dynamic response and poor in load adaptability, the method initializes a Q table through pulse calibration data so as to reduce invalid exploration of reinforcement learning; a reward and punishment return function is improved, and a load feed-forward compensation mechanism is introduced, so that load disturbance pre-judgment and advanced suppression are realized; an epsilon-greedy method is adopted to optimize PID parameters, and the optimal PID parameters are screened through comprehensive scores; a double-current-loop topology is constructed, and transformer leakage inductance is used for replacing LC filtering to achieve quick response. The current precision of the constant current source is larger than or equal to 98%, the total harmonic distortion is smaller than or equal to 1%, the method can adapt to wide-range loads, stability is remarkably improved, and the method is suitable for industrial electrolysis, new energy battery testing, high-power motor driving and other high-precision large-current scenes.

The utility model discloses a kind of pulse power source calibration devices, comprising: calibration unit, it includes pulse calibrator, the two sides of the pulse calibrator are all set with U-shaped receiving slot, support unit, it includes two U-shaped handles, the two ends of each U-shaped handle are fixedly connected with the rotating shaft that passes through U-shaped handle, each rotating shaft is rotatably connected in corresponding receiving slot, the gap for deflection is left between the receiving slot and U-shaped handle, cylindrical groove is set on the transverse holding section of U-shaped handle, anti-skid sleeve is fixedly sleeved in the cylindrical groove of U-shaped handle.The utility model carries pulse calibrator, U-shaped handle can be deflected and unfolded from receiving slot outward, to facilitate labor-saving handling, when not needing to carry, U-shaped handle can be deflected inward and received to receiving slot, so that pulse calibrator has no protruding structure exposed, thereby reducing the occupied volume of pulse calibrator in limited space such as cabinet.

This invention relates to the field of filtering technology, specifically to a dual-comb photoacoustic signal adaptive filtering system, comprising a pulse calibration module, a phase calculation module, a trend recognition module, a filtering control module, and a result output module. In this invention, accurate identification of periodic components is achieved by acquiring the timing information of the main pulse and extracting symmetrical segments of the signal; dynamic monitoring of signal structural stability is achieved through phase angle calculation and abrupt change recognition; precise control of the filter weight adjustment rhythm is achieved by determining the status label based on the changing trend of the phase difference and setting an update rate factor; and the filter weight command output is controlled by logical judgment based on historical step size states, and the output continuity is verified, effectively improving the adaptability and stability of the filtering process. In complex backgrounds, it enhances the ability to preserve the characteristics of the target signal and suppresses the influence of non-stationary noise, thereby improving the overall signal-to-noise ratio and the reliability of the filter.

A quantum noise mitigation system can comprise a memory that stores, and a processor that executes, computer executable components comprising a pulse calibration component that, for controlling execution of a quantum gate of a quantum circuit, calibrates an echo extender tone parameter for a set of echo extender tones of an echo pulse sequence, wherein the pulse calibration component inserts the set of echo extender tones into the echo pulse sequence of an initial pulse sequence resulting in generation of a modified pulse sequence for use in controlling the execution of the quantum gate, and a parameterizing component that parameterizes the set of echo extender tones using a scalable stretch factor for stretching respective durations of the set of echo extender tones.