287 results about "Multiple pulse" patented technology

The patent application describes an adaptable neuromodulation device for transcranial electrical brain stimulation. The system can generate complex poly-modulated waveforms by combining multiple pulse parameters in a randomized manner across dimensions like amplitude, frequency, phase, timing, and polarity. It leverages both digital and analog modulation techniques for waveform versatility. The device features pathway optimization algorithms that tune stimulation using neural feedback data to target specific brain region shapes with greater precision. It also enables closed-loop operation for responsiveness to physiological changes. The application details the mathematical and computational foundations, spanning graph theory to generate digital twins. It highlights applications from cognitive enhancement to seizure control. Overall, the innovation promises versatility and precision in non-invasive neuromodulation through adaptable, optimized waveforms grounded in sophisticated modeling.

The invention provides a multi-motor pulse speed regulation control method and system, and relates to the technical field of motor control, the method comprises the steps that a target set quantity and a target motor identifier are obtained, a target driving parameter is obtained through conversion according to a parameter set associated with the target motor identifier, and the parameter set comprises an elastic modulus value and a stress relaxation coefficient of a peristaltic pump hose; real-time driving parameters are maintained for the multiple pulse output channels respectively, and refreshing is carried out at the synchronization moment; operating state feedback values of a peristaltic pump channel and a stirring motor channel are collected, a water hammer effect frequency component and an impeller passing frequency component are extracted, and correction is carried out based on the elastic parameters; and judging whether a cross-channel resonance judgment condition is met or not, and when the condition is met, determining a frequency correction amount and a phase correction amount and applying the correction amounts to at least one pulse output channel, thereby reducing the resonance risk and stabilizing the system operation.

The invention relates to a response performance test method and system of a microswitch. The method comprises the following steps: inputting a multi-pulse trigger sequence to a microswitch contact and collecting contact response original data; performing digital filtering processing on the contact response original data to obtain contact response time sequence data; comprehensive response time parameters including contact mechanical action starting time, electrical initial contact time and electrical stable contact time are calculated according to the contact response time sequence data; performing temperature compensation and contact rebound characteristic extraction on the comprehensive response time parameter to obtain contact rebound characteristic evaluation data; according to the contact rebound characteristic evaluation data and the comprehensive response time parameter, the response performance stability of the microswitch under the high-frequency operation condition is calculated, and a reliability evaluation result is generated. According to the invention, the problem of time sequence measurement error caused by the influence of contact jitter in the traditional test is effectively solved, and the accuracy and consistency of contact response time measurement are remarkably improved.

The invention discloses a high-resolution peak value positioning method based on multi-pulse superposition and offset clock cooperation, and belongs to the technical field of laser radar ranging. Aiming at the problems that a traditional laser radar depends on a high-sampling-rate ADC, so that hardware cost is high, power consumption is large, and sampling errors are likely to be caused by echo jitter, the method does not need to replace an existing ADC, and the technical breakthrough is achieved through the following core steps that firstly, the basic sampling rate X Hz and the target equivalent sampling rate improvement multiple N of the ADC are determined; laser pulses are emitted to a target object for N times, during Kth emission, ADC sampling is started by delaying (K-1) / (X * N) seconds, and N groups of echo data with time sequence offset are obtained; performing cross combination on the N groups of data, and constructing an N-time equivalent high-sampling-rate data sequence; repeating the sampling and combining process for S times, and performing alignment superposition and averaging on S groups of data to suppress echo jitter and noise; and estimating initial parameters (amplitude, mean value and standard deviation) of a Gaussian model based on the superposed data, optimizing the parameters through an LM nonlinear optimization algorithm, and finally taking the optimized mean value as a high-precision peak position of an echo signal to realize accurate measurement of the laser flight time. Under the condition of low-sampling-rate hardware, through the collaborative design of clock skew and multi-pulse superposition, the physical limitation of the sampling rate is broken through, low cost, low power consumption and high ranging precision are taken into account, and the method is adaptive to multi-scene application of automatic driving, industrial ranging and the like.

The invention discloses a communication-detection integrated sonar signal design method and device based on multi-pulse composite modulation, and the method comprises the steps: dividing a total frame period into a detection sub-frame and a communication sub-frame, enabling the detection sub-frame to achieve the high-resolution distance measurement through employing a bidirectional linear frequency modulation (BILFM) signal, a communication sub-frame adopts a multi-frequency multi-phase composite modulation (MTPM) signal to realize high-bit-rate data transmission; after band filtering, orthogonal demodulation, low-pass filtering and down-sampling preprocessing are carried out on detection sub-frame echoes, distance and speed information is extracted by adopting fast-time low-sampling two-dimensional fast Fourier transform (2D-FFT), unambiguous Doppler frequency is recovered by utilizing the Chinese remainder theorem (CRT), and accurate speed measurement of long-distance and high-speed targets is realized; a communication subframe receiving signal is subjected to IQ demodulation after down-conversion, Costas loop carrier synchronization and matched filtering, and multi-frequency multi-phase coded data are extracted. According to the method, the time-frequency collaborative design of detection and communication is realized, the distance resolution and the speed measurement range are considered, and the signal bandwidth utilization rate and the underwater information transmission reliability are remarkably improved while the system complexity is kept low. The device comprises a processor and a memory, and an executable program for implementing the method is stored in the memory. The technology can be widely applied to the fields of unmanned underwater vehicles, ocean monitoring, underwater sensing networks and the like.

The present invention relates to the technical field of optical fiber sensing, and particularly relates to an optical time-domain reflectometer, and a method for eliminating interference fading. The optical time-domain reflectometer comprises: a laser device, a frequency-division multiplexing modulator, a circulator and a signal processing apparatus, wherein the frequency-division multiplexing modulator comprises a first modulator, a second modulator, a first attenuator and a second attenuator; the laser device is used for generating a coherent light source, and the coherent light source sequentially passes through the first modulator and the first attenuator, so as to obtain a first pulsed light signal; the coherent light source sequentially passes through the first modulator and the second modulator, so as to obtain a second pulsed light signal; and the coherent light source sequentially passes through the second attenuator and the second modulator, so as to obtain a third pulsed light signal. Therefore, by means of different combinations of the first modulator, the second modulator, the first attenuator and the second attenuator, multiple pulsed light signals can be outputted; and compared with the prior art, hardware costs are saved.

The invention discloses a low-harmonic high-voltage speed regulation system based on a multi-pulse phase-shifting transformer, and particularly relates to the field of power electronic technology and motor speed regulation, which is characterized in that the primary side of the multi-pulse phase-shifting transformer is in star connection, and N groups of windings on the secondary side are in extended delta connection, so that phase difference is realized; the multi-path low-voltage alternating current is converted into multi-path low-voltage alternating current and low-order harmonics are High voltage is output through cascade H-bridge topology series connection, and reliable conversion is guaranteed through rectification filtering inversion and device redundancy design; the motor control module collects signals through multiple sensors, and PWM drive signals are generated through a vector control algorithm and coordinate transformation. The harmonic detection and compensation module detects harmonic waves based on an FFT algorithm, and injects a reverse compensation component through a modulation strategy to offset the harmonic waves; and the auxiliary protection module integrally realizes low-harmonic and high-precision high-voltage motor speed regulation through multi-dimensional monitoring and hardware protection.

The invention relates to the field of radar detection and signal processing, and particularly discloses a radar data technology system for monitoring a tiny target, and the system comprises a signal receiving and transmitting module which is used for generating and transmitting a linear frequency modulation signal based on a linear frequency modulation technology, and receiving an original echo signal reflected by the target; the pulse compression processing module is used for performing complex convolution operation on the original echo signal based on a matched filter to generate a compressed pulse signal; the multi-pulse coherent accumulation module is used for performing frequency domain energy accumulation on a plurality of compressed pulse signals of the same distance unit based on a discrete Fourier transform technology; and the Kalman filtering tracking module is used for processing the signals after multi-pulse coherent accumulation through a Kalman filtering algorithm, predicting and updating a target state in real time, and generating final trace point data. According to the invention, through key technologies of large-time wide-bandwidth pulse compression, multi-pulse coherent accumulation and the like, the detection capability of the radar on a tiny target is remarkably improved.

The invention discloses an image restoration method and system based on a pulse neural network. The method comprises the following steps: processing an original degraded image to obtain a plurality of degraded sub-images with different resolutions; constructing an image restoration model based on a pulse neural network and a multi-scale feature fusion mechanism, wherein the image restoration model comprises a pulse coding layer, a feature fusion network and a residual pulse decoding layer; the plurality of pulse coding layers are used for respectively carrying out pulse coding on the degraded sub-images with different resolutions to obtain multi-scale pulse characteristics; the feature fusion network adopts a U-Net architecture comprising an encoder and a decoder and comprises a plurality of stages, each stage processes pulse features input by a plurality of pulse coding layers in each stage, and multi-scale feature extraction and fusion are realized to gradually recover high-resolution image details; the residual pulse decoding layer decodes the pulse features to form an image restoration result; the trained image restoration model is used for image restoration, so that the image restoration quality is ensured, the time steps are remarkably reduced, and the energy consumption is reduced.

A method, system, device and medium for detecting a dark space target and predicting a track under a dense fixed star background comprises the following steps: firstly, obtaining a reconstructed multi-pulse function by using a frequency spectrum phase difference, further estimating motion parameters of a dark star background and a space target, and then designing an image difference fusion coarse processing module to obtain a candidate target image sequence; the number of tracks is effectively reduced; and finally, according to the motion parameters and the candidate target image sequence, directional track association is carried out, an association area is reduced to a fan-shaped range, and redundant false alarms are removed while the target track is accurately and rapidly detected. The system, the equipment and the medium are used for realizing the invention. Based on the distribution characteristic of the space target and the time domain motion characteristic, the method not only achieves the precise suppression of fixed stars with different brightness, but also improves the detection robustness of targets with different star magnitudes, and has a better detection effect on dark space targets with different motion parameters under the background of dense fixed stars.

The invention provides a nutrition pump drop identification method, a nutrition pump and electronic equipment, and relates to the technical field of drop identification, and the nutrition pump drop identification method comprises the steps: obtaining liquid drop detection signals collected by multiple infrared receiving channels; performing signal conditioning processing on each path of liquid drop detection signal to obtain multiple paths of pulse signals; combining the multiple paths of pulse signals into a single-path effective pulse sequence by using redundancy decision logic; and calculating the real-time dripping speed according to the pulse frequency of the single-path effective pulse sequence. According to the scheme, the liquid drop detection signals of the multiple infrared receiving channels are collected in parallel, or operation merging is carried out on the multiple pulse signals through the redundancy judgment logic, effective recognition of liquid drop events can still be maintained when part of channel signals fail, and therefore the fault-tolerant capability and robustness of the detection process are improved.

The invention discloses wrist blood pressure measuring equipment, a wrist blood pressure measuring method and a storage medium. The equipment comprises a pulse wave signal acquisition sensor, an air pressure sensor, a wrist strap and a processor, the pulse wave signal acquisition sensor is arranged on the wrist strap, and the pulse wave signal acquisition sensor is provided with a plurality of pulse wave signal acquisition channels; the air pressure sensor is arranged on the wrist strap; the processor is used for acquiring multiple pulse wave signals at different positions simultaneously acquired by the multiple pulse wave signal acquisition channels within a first time period; a first blood pressure measurement value is calculated based on the pulse wave signals, collected at the same time, of the multiple different positions; acquiring an air pressure signal acquired by an air pressure sensor in a first time period; calculating a second blood pressure measurement value based on the air pressure signal; and calculating the blood pressure measurement value of the measured object based on the first blood pressure measurement value and the second blood pressure measurement value. When the blood pressure is measured, the blood pressure measurement value of the measured object is calculated according to the first blood pressure measurement value and the second blood pressure measurement value, so that the blood pressure measurement precision is improved.

The invention provides a communication compatibility control method, device and system and a gateway, and belongs to the technical field of communication. The method is applied to a gateway and specifically comprises the following steps: when a main serial port arranged on the gateway cannot identify a communication electric signal sent by main equipment, sampling the communication electric signal transmitted on a receiving signal line of the main serial port through an interruption mechanism to obtain a plurality of level signals; according to a plurality of pulse widths corresponding to the plurality of level signals, determining a baud rate of the master device, and converting the plurality of level signals to obtain a target bit string; analyzing the target bit string to obtain a main serial port communication protocol and all byte data; and decoding all the byte data to obtain a character string, sending the character string to the slave device, and configuring the main serial port according to the baud rate of the main device and the communication protocol of the main serial port. According to the invention, automation of communication parameter configuration between the master device and the slave device can be realized through a gateway bridging mode.

A UWB tag (10) for detecting the presence of a living object (20) is described, wherein the UWB tag (10) comprises at least one UWB front-end transceiver (11) and is configured to transmit multiple pulses (30) and receive multiple associated reflected channel pulse responses (32), and subsequently evaluate them for changes in the received associated reflected channel pulse responses (32), wherein the detection of the change in the associated reflected channel pulse responses (32) indicates the presence of the living object (20). Furthermore, a method (100) for detecting the presence of a living object (20) using at least one UWB tag and a multi-statistical radar system are described.

An energy conversion device 100 for an electrolysis system (150) comprises: an adjustable transformer (101) having a primary side (102) connectable to an AC grid (103) via a point of common coupling, a secondary side (104) and a tap switch (105); a rectifier transformer (106, 107) having a primary side (108, 109) configured to provide a secondary side voltage differing by a predetermined phase shift; a thyristor rectifier unit (114, 115, 116, 117) forming a multi-pulse rectifier system (118) that receives the secondary side voltage and provides a DC current to the electrolyser unit (119, 120, 121, 122); and a protection controller unit 133 for connecting / disconnecting the device to / from the power grid as a function of a comparison of the secondary-side voltage to a corresponding secondary-side threshold voltage, where the multi-pulse rectifier system comprises a synchronization control circuit (123, 124, 125, 126) providing thyristor gate pulses at an emission angle synchronized with the secondary-side voltage, and a protection controller unit 133 for connecting / disconnecting the device to / from the power grid as a function of a comparison of the secondary-side voltage to a corresponding secondary-side threshold voltage. And wherein the respective secondary-side threshold voltage is determined from a nominal threshold voltage specified by a grid guideline at the point of common coupling and a physical transformer parameter adjusted according to tap switch position information (129).

The invention discloses an airborne bistatic radar clutter suppression and target accumulation detection combined implementation method, which is applied to the technical field of radars, and aims to solve the problems of range migration, Doppler migration and strong clutter noise background when an airborne bistatic radar detects a low-altitude maneuvering target. According to the method, non-stationary clutters are effectively suppressed and range migration and Doppler migration are corrected and compensated by utilizing two-stage sliding sub-aperture space-time processing, target signal reconstruction and sub-aperture segmented accumulation, so that coherent accumulation of target multi-pulse energy is realized; finally, the purposes of improving the echo signal-clutter-noise ratio and improving the maneuvering target detection performance of the bistatic radar are achieved.

By utilizing soliton self-frequency shift modulation, the formation of multiple pulsed light beams is suppressed, while the occurrence of ASE (Autonomous Emission Reduction) is suppressed, and the modulated pulsed light beam is reliably amplified. [Solution] The pulsed light generation device 100 comprises an oscillator 1 that oscillates pulsed light L, a fiber amplifier 2 located downstream of the oscillator 1 in the optical path of the pulsed light L, a soliton shift fiber 5 located downstream of the fiber amplifier 2 in the optical path of the pulsed light L, a branching section 8 located downstream of the fiber amplifier 2 in the optical path of the pulsed light L, and a short-wavelength fiber amplifier 11 located downstream of the soliton shift fiber 5 and the branching section 8 in the optical path of the pulsed light L.

The invention discloses a Karaoke system time delay measurement method and device, and the method comprises the steps: recording sound data collected by a mobile terminal cross-screen Karaoke system, so as to obtain recording data; filtering the recording data to obtain filtered recording data; calculating an RMS value of the filtered recording data; based on the RMS value variable quantity of the current time, determining currently detected pulse information and corresponding time delay; and calculating the average value of the time delays of the multiple pieces of pulse information to obtain the full-link time delay. According to the method, full-link time delay is accurately calculated and obtained by calculating and filtering the RMS value of the recording data and determining the currently detected pulse information and the corresponding time delay by using the RMS value variation of the current time, so that high-precision, low-interference and low-cost time delay quantization is realized, and the real-time performance and synchronism of karaoke experience are optimized.

A backscatter communication synchronization and control method based on an ambient cellular OFDM signal, which method relates to the technical field of wireless communications. The method comprises the following steps: S10, a sending end sending an ambient cellular OFDM signal, wherein the ambient cellular OFDM signal carries synchronization and control information; and S20, a backscatter tag acquiring the synchronization and control information from the ambient cellular OFDM signal, wherein step S20 comprises: the backscatter tag using an envelope detection circuit to convert the ambient cellular OFDM signal into a digital pulse signal; the backscatter tag establishing synchronization with the sending end by means of performing detection on a rising edge of the digital pulse signal; and the backscatter tag identifying control information of the sending end by means of measuring multiple pulse widths of the digital pulse signal. The method realizes reliable synchronization and control without relying on an additional excitation signal.

This invention provides a millimeter-wave isolation circuit and isolator with multiple receiving links. Its millimeter-wave receiving module includes two or more dipole antennas and receiving units connected one-to-one with each dipole antenna. Each dipole antenna and its corresponding receiving unit constitutes a receiving link. The two or more dipole antennas are arranged along their length, with the radiating elements of consecutive dipole antennas connected end-to-end, forming a millimeter-wave receiving antenna array. It is configured to receive the millimeter-wave signal through two or more receiving links and then output two or more identical pulse signals. This invention enables synchronous reception of multiple pulse signals based on a single structure, ensuring minimal time deviation at the receiving end and reducing system power consumption and cost.

The application discloses a self-task planning method for quick maneuvering rendezvous imaging of a spatial space target, and comprises the following steps: step one, multi-pulse control sequence planning: according to task requirements and considering determination of an orbit requirement, a multi-pulse control sequence is given, and the first control is implemented autonomously on the satellite; step two, closed-loop control sequence planning: after the i-th control is finished, the remaining N-i control sequences are given in combination with the orbit of the satellite after control and the orbit of the target, and the i+1-th control is implemented; wherein, i is greater than or equal to 1 and less than or equal to N-2, and the total control times are N; step three, single-pulse transfer planning: after N-1 control is finished, the last control velocity increment is calculated by using a Lambert transfer method in combination with the orbit of the satellite after control and the orbit of the target, and the N-th control is implemented; and step four, imaging task planning. The closed-loop control planning method is given by considering the influence of control errors and orbit errors, the method can ensure that the planning result of each time is basically consistent with the first planning, and the final rendezvous precision requirement is met.

The invention discloses a method for testing the service life of a high-repetition-frequency multi-pulse optical thin film, and the method comprises the steps: determining the range of the total irradiation pulse number of a damage threshold test through finding out the inflection point pulse number of which the damage threshold of a thin film element tends to be stable under high repetition frequency, and providing a basis for the acceleration of service life prediction; in the irradiation pulse number range, the relation between the damage threshold stable value and the repetition frequency is fitted, a thin film life prediction mechanism under the high repetition frequency is established, and the energy density allowed by stable operation of the element under other repetition frequencies can be obtained through calculation. The method is of great significance in improving the service life testing efficiency and accuracy of the optical element.

This invention discloses a method for optimizing airborne radar detection waveforms in multi-pulse accumulation scenarios. The method involves calculating the current transmit modulation vector based on the target airborne radar's current phase-coded waveform, target beam pointing angle, and attribute parameters; calculating the current transmit signal space based on the current transmit modulation vector, current phase-coded waveform, and attribute parameters; calculating the current angular domain waveform based on the current transmit modulation vector and current transmit signal space; determining the current cross-correlation sidelobe level, current autocorrelation sidelobe level, current transmit beam pattern, and current Doppler sidelobe level of the current angular domain waveform and other angular domain waveforms, respectively, and substituting these values ​​into a target optimization function to obtain the current target value; and determining the target transmit waveform based on the current target value and a preset iteration termination condition. This invention significantly improves the radar's anti-sorting and anti-spoofing capabilities while maintaining detection performance.

The present application relates to the field of aerospace technology, specifically to a kind of multi-pulse parallel construction method of gravitational wave detection formation considering timing optimization, each spacecraft of formation simultaneously departs from virtual center, each spacecraft is moved to the preset specified position by applying multiple pulses, so as to form a kind of spacecraft formation that can be used for space gravitational wave detection, by giving the steps of calculating the initial position and velocity of each spacecraft and applying initial control to reach the initial position and velocity, the state quantity of each spacecraft at each time in the formation construction process is calculated, so as to provide reference for the design of satellite formation task in actual engineering application, and the accuracy of the linearized relative motion dynamics model established by the multi-pulse parallel space gravitational wave detection formation is improved by differential correction, the error in the relative motion dynamics model is reduced, the initial state set in advance can be effectively reached, and the working efficiency of formation component is improved.

The embodiment of the invention provides a wide dynamic range signal acquisition method and circuit, and the method comprises the steps: a quadrupole is connected with an ion receiving electrode, the ion receiving electrode is connected with a transimpedance amplifier circuit, the transimpedance amplifier circuit is connected with a threshold comparison circuit, the threshold comparison circuit is connected with a D trigger circuit, and the D trigger circuit is connected with a dead time correction circuit. The lower computer FPGA is connected with the D flip-flop circuit; the quadrupole is used for screening ion signal output; the ion receiving electrode is used for converting the ion signal into a current signal; the transimpedance amplifier is used for converting the current signal into a voltage signal; the threshold comparison circuit is used for turning the voltage signal into a logic level; the D flip-flop circuit is used for outputting a target signal level matched with the lower computer FPGA; and the lower computer FPGA is used for receiving the target signal level and counting the signals acquired by the plurality of pulses through the dead time correction circuit. In this way, the phenomenon of counting omission under high-frequency signals is reduced, and the counting accuracy is improved.

The invention discloses an autonomous task planning method for rapid maneuvering rendezvous imaging of a space different-plane target, and the method comprises the steps: 1, multi-pulse control sequence planning: giving a multi-pulse control sequence according to a task demand and a measurement orbit demand, and autonomously carrying out the first-time control on a satellite; step 2, closed-loop control sequence planning: after the ith control is finished, combining the controlled satellite orbit and the target orbit to give a remaining (N-i)-time control sequence, and implementing the (i + 1)-time control; wherein i is larger than or equal to 1 and smaller than or equal to N-2, and the total control frequency is N; step 3, monopulse transfer planning: after N-1 times of control is finished, calculating the speed increment of the last time of control by using a Lambert transfer method in combination with the controlled satellite orbit and the target orbit, and implementing the Nth time of control; and step 4, imaging task planning. The influence of control errors and orbit errors is considered, a closed-loop control planning method is given, it can be guaranteed that each planning result is basically consistent with the first planning result, and the final intersection precision requirement is met.

The application provides a pulse repetition frequency type recognition method and device based on graph domain mapping and feature enhancement, and relates to the technical field of radar signal processing. The method comprises the following steps: determining a pulse repetition frequency sequence corresponding to a screened pulse repetition frequency; taking the reciprocal of the pulse repetition frequency sequence to obtain a pulse repetition interval sequence; dividing the pulse repetition interval sequence into multiple subsequences according to a preset length; transforming the multiple subsequences into a Gram difference angle field image according to a graph domain mapping algorithm, and dividing the image into training samples and test samples; constructing a pulse repetition frequency type recognition network, inputting the training samples into the pulse repetition frequency type recognition network, training the pulse repetition frequency type recognition network, and obtaining a trained pulse repetition frequency type recognition network; and inputting the test samples into the trained pulse repetition frequency type recognition network to recognize multiple pulse repetition frequency types. In this way, the recognition accuracy and robustness of the pulse repetition frequency type are improved in a complex non-ideal scene with a high proportion of missed pulses and false pulses.

The invention belongs to the technical field of pulse power, and particularly discloses a frequency superposition pulse circuit based on an avalanche transistor, a generator and a control method. According to the frequency superposition pulse circuit, the frequency superposition pulse circuit is composed of the multiple pulse units, the finally output repetition frequency pulse is composed of the outputs of the multiple pulse units, superposition on the frequency is achieved, and the pulse repetition frequency can be improved while the pulse amplitude can be effectively guaranteed. The pulse repetition frequency of a single pulse unit can be effectively reduced while the purpose of high repetition frequency output is achieved, the problem that the repetition frequency of output pulses of a single Marx circuit based on an avalanche transistor is insufficient is solved, meanwhile, the problem that the avalanche transistor and a resistor in the single pulse unit generate heat under high repetition frequency pulses can be effectively relieved, and the pulse repetition frequency of the single pulse unit can be effectively reduced. And thermal damage of the device under high repetition frequency pulses is avoided. The n isolation diodes in the same pulse unit are connected in series, so that the output end of the whole pulse unit generates high voltage, an isolation effect is achieved, and false triggering of m pulse units is avoided.

In MIMO radar systems using the FM-ICW system, interference occurs in the beat signal due to cross-correlation components when the target is at close range. [Solution] The radar transmitter 200 is a transmitting signal that repeats a transmitting chirp signal consisting of multiple pulses having a transmission interval and whose frequency changes over time, and applies one of several classified phase change amounts with respect to the distance to the target to each of the multiple pulses in the transmitting chirp signal, and outputs with a time shift amount; and the radar receiver 300 receives a receiving signal that repeats a receiving chirp signal consisting of multiple pulses of the transmitting chirp signal of the transmitting signal received from multiple receiving antennas 12 that receive the received wave that has been reflected off the target from the transmitted wave from multiple transmitting antennas 11, and generates a beat signal having a frequency that is the difference between the frequencies of the corresponding pulses of the transmitting chirp signal and the pulses of the receiving chirp signal, thereby obtaining distance information to the target.