10 results about "Coupled pulse" patented technology

The invention discloses a coupling pulse distortion compensation method for superconducting quantum computing, and relates to the field of signal processing, and the method comprises the steps: S1, inputting an initial square wave signal into a first IIR filter, and reducing the frequency attenuation of superconducting quantum bits; s2, outputting the initial square wave signal to a second IIR filter to improve the high-frequency component of the initial square wave signal; s3, outputting the initial square wave signal to a third IIR filter to eliminate pulse back edge reflection of the initial square wave signal; and S4, outputting the initial square wave signal to a first FIR filter to carry out ripple correction so as to complete pre-distortion correction. By setting the staged pre-distortion compensation of the three-section IIR filter and the one-section FIR filter, the pre-distortion compensation of the square wave signal is more accurate and stable, the square wave edge response is rapid and the amplitude is correct, and the time delay and the amplitude error caused by the link are reduced; the quantum bit Z-axis phase control method has the advantages that quantum bit Z-axis phase control is more accurate, and the fidelity of a square wave signal gate is prevented from being reduced.

A digital-to-analogue converter (DAC) device includes an input terminal for receiving an input signal that includes m MSBs and n least significant bits LSBs. The device includes a coarse DAC that generates a first voltage from the m MSBs, utilizing resistors and switches coupled to a reference voltage. Coupled with a clock signal of a predetermined frequency, a pulse generator produces pulse signals, including a first pulse signal with a first average voltage and a second pulse signal with a second voltage approximately half of the first average voltage. A fine DAC generates a second voltage using then LSBs to select among the pulse signals. An output filter combines the first and second voltages to produce the final output signal. Integrated circuits containing DAC devices and packages containing the integrated circuits are also described.

An ADC (50) is disclosed. It has two VTCs (110a, 110b) for converting a first and a second input voltage, respectively, to pulses with delays corresponding to the magnitudes of these voltages. It further has a pulse-detector circuit (120) coupled to outputs (114a, 114b) of the two VTCs (110a, 110b). The pulse-detector circuit (120) is configured to make a transition from a first logic state (‘0’) to a second logic state (‘F) at a first output (124a) of the pulse-detector circuit (120) in response to the start of the pulse from one of the VTCs (110a) and to make a transition from the first logic state (‘0’) to the second logic state (‘F) at a second output (124b) of the pulse-detector circuit (120) in response to the start of the pulse from the other VTC. Furthermore, the pulse-detector circuit (120) is configured to reset both the first and the second output (124a, 124b) to the first logic state (‘0’) in response to both the first output (124a) and the second output (124b) of the pulse-detector circuit (120) being set in the second logic state (‘1’). The ADC (50) further has a first TDC (130a) coupled to the first output (124a) of the pulse-detector circuit (120) and a second TDC (130b) coupled to the second output (124b) of the pulse-detector circuit (120).

This invention relates to the field of data evidence storage technology, and discloses an industrial instrument data evidence storage middleware and its pulse atomization signature method. The middleware includes a physical interface layer and a microcontroller unit (MCU). The transceiver circuit of the physical interface layer includes: an RC inverse attenuation network, connected in series in the receiving channel, attenuating the inverse command signal level to below the standard transceiver differential identification threshold, realizing one-way monitoring and authorization at the physical layer; and an optocoupler isolation circuit, connected in parallel in the pulse input channel, with its output directly connected to the MCU's highest priority external interrupt (EXTI) pin, forming a hard-coupled pulse triggering path. After EXTI triggering, the MCU enters the highest priority ISR, atomically locking the original evidence to a volatile buffer. After exiting the ISR, it asynchronously completes hash and PUF-derived private key signature operations in the background and sends the evidence storage frame using the bus idle window. The evidence storage data is written to the NVM logical partition through the ZoneLock mechanism and is irreversibly locked. Combined with chained hash verification, data integrity and timing are ensured.

The invention relates to the technical field of electromagnetic compatibility (EMC) test and simulation, in particular to a cable coupling S parameter general module simulation modeling method facing pulse excitation, which comprises the following steps: S parameter module generation stage: utilizing three-dimensional electromagnetic simulation software, and according to a real cable geometric structure, a type and an injection probe model, generating an S parameter module; constructing a cable coupling pulse interference electromagnetic model, and executing frequency domain simulation through a user-defined port and a frequency scanning range to obtain an S parameter module; in the S parameter module simulation application stage, the S parameter module is imported into any circuit simulation software supporting the standard, the S parameter module, a pulse interference excitation source, a terminal load circuit and a tested object circuit model jointly form a complete simulation model, then transient time domain simulation is executed, a detailed response waveform is generated on a tested object port, and therefore performance evaluation is conducted; the method is based on a cross-platform universal interface of an open standard, has wide applicability and prospective verification capability, and shortens the product research and development cycle.

A high frequency electromagnetic radiation generation device is disclosed that includes a high voltage input, a nonlinear transmission line, an antenna, and a pulse recirculating circuit. In some embodiments, the high voltage input may be configured to receive electrical pulses having a first peak voltage that is greater than 5 kV, and / or may be electrically coupled with the nonlinear transmission line. The antenna may be electrically coupled with the nonlinear transmission line and / or may radiate electromagnetic radiation at a frequency greater than 100 MHz about a voltage greater than 5 kV. The pulse recirculating may be electrically coupled with the high voltage input and the antenna. The pulse recirculating circuit may include a diode; a low pass filter; and a delay line. In some embodiments, unradiated energy from the antenna is directed through the pulse recirculating circuit to the nonlinear transmission line with a delay of less than 100 ns.

A sensor buoy comprising: a buoy casing configured to float on a body of water; an antenna mounted to the buoy casing so as to limit an RF range of view to no more than fifteen kilometers; an instantaneous frequency measurement (IFM) receiver mounted to the buoy casing and communicatively coupled to the antenna; a pulse descriptor word (PDW) generator mounted to the buoy casing and configured to receive an output from the IFM receiver; a processor configured to receive PDWs generated by the PDW generator and to calculate a corresponding pulse repetition interval (PRI); a magnetometer communicatively coupled to the processor; a scheduler communicatively coupled to the processor and configured to control when the sensor buoy transmits information; and a transmitter communicatively coupled to the scheduler and configured to format data from the processor into a correct format and packet structure for transmission.

According to the long-pulse laser additive-ultrafast laser coaxial strengthening fusion manufacturing method, long-pulse laser is adopted as an additive melting energy source, and the comprehensive mechanical property better than that of continuous laser can be obtained; after the material is melted, ultrafast laser is used for coaxially irradiating the formed material, the limitation of off-axis strengthening is avoided, internal defects are reduced through high-frequency periodic impact of the ultrafast laser, the microstructure is refined and regulated, the surface hardness of the formed material is improved, the fatigue life of the formed material is prolonged, and the performance of parts is further improved. Meanwhile, the adopted double light sources form coaxial coupling pulse light beams by using a beam combining element, so that the adoption of a plurality of sets of galvanometer scanning systems is avoided, the rapid and high-frequency conversion of irradiation pulses is realized through coaxial beam combination and sequential control, and the structural complexity of the device and the technical implementation cost are reduced.

The invention provides a Fabry-Perot sensor demodulation system and method based on a single-cavity double-comb fiber laser, and a demodulation device of the demodulation system comprises the single-cavity double-comb fiber laser comprising a pump light source, a wavelength division multiplexer, an erbium-doped fiber, a coupler, a saturable absorber and a polarization controller. Signals with different repetition frequencies and reference pulse light are output from the coupler; an amplification and isolation module; the light combining device is used for coupling multiple groups of emergent pulse light output by the system to be tested of the demodulation system and reference pulse light output by the amplification and isolation module; the photoelectric detector is used for converting the coupled pulse light into an electric signal; a processing unit that acquires information of each sensor based on an electrical signal that is a time domain signal; the to-be-tested system is used for receiving the signal pulse light output by the amplification and isolation module and outputting multiple groups of emergent pulse light with different first time delays, and multiple sub-pulse light of each group of emergent pulse light has different second time delays. As a result, a plurality of Fabry-Perot sensors can be demodulated.