37results about How to "Reduce system complexity" patented technology

The invention discloses a matrix type temperature detection system and method based on temperature-sensitive diodes, the problems of complex wiring and large temperature drift of a traditional multi-node temperature measurement system are solved through M * N matrix layout, row and column time-sharing gating and constant current driving technologies, the system adopts an independent column constant current source to ensure the measurement consistency, and a high-precision ADC and a dynamic calibration algorithm are combined, so that the measurement accuracy is improved. And the precision of + / -0.2 DEG C is realized within the range of 50-150 DEG C. The method is particularly suitable for high-density temperature measurement scenes such as battery thermal management, electronic equipment overheating monitoring and the like.

The invention discloses a cross-city traffic prediction method and system based on multi-modal fusion and spatial expert routing, relates to the technical field of traffic prediction, and provides an adaptive modal selection mechanism based on a signal-to-noise ratio for the problems of missing, noise and uneven quality of multi-modal data in different cities. And a low-quality mode is dynamically suppressed in combination with comparative learning, and robust multi-mode fusion is realized. In order to solve the problems of large space structure difference and weak generalization ability among cities, a multi-modal guided space expert routing architecture is designed: modal sharing experts and routing experts are activated by using a multi-modal context, and local space dependence is adaptively modeled for different functional regions. The method supports any modal combination input, city specific fine tuning is not needed, and the zero sample cross-city prediction performance is significantly improved.

This invention discloses a method for restoring turbulent degradation images based on complex amplitude detection, belonging to the field of computational optics imaging technology. This method constructs a computational optics imaging system without a hardware correction unit. It utilizes a wavefront sensor and an imaging sensor to simultaneously acquire Hartmann images and target degradation images. A computational unit performs wavefront complex amplitude reconstruction and aberration correction. Based on this, a physically constrained end-to-end neural network architecture is designed. By reconstructing the wavefront complex amplitude, it achieves accurate mapping and inference from the Hartmann image to the point spread function of the imaging system. Finally, a multi-scale deconvolutional network is combined to complete high-quality restoration of the turbulent degradation image. This invention eliminates the need for a hardware corrector, overcomes the physical limitations of traditional adaptive optics, effectively solves the problem of insufficient point spread function accuracy, and enables time-delay-free and highly efficient turbulent image restoration under low-cost conditions.

The perception-assisted predictive handover method in the high-speed railway tunnel scene of the application belongs to the technical field of wireless communication and intelligent transportation, and the steps include: constructing a bistatic communication and perception integrated architecture, establishing a communication and perception signal model considering double selective channels, deducing a lower bound of Cramer-Rao based on joint time delay-Doppler parameter estimation to establish a perception-assisted location prediction model, designing a three-state predictive handover mechanism based on perception information, and proposing a perception-assisted dual deep Q network algorithm, jointly optimizing handover decision, clamp antenna configuration and power allocation. By integrating perception capability into handover decision, the application realizes predictive switching before signal degradation, significantly improving the handover success rate and communication throughput in the high-speed railway tunnel scene.

The invention discloses an ultra-wideband weak signal detection method and system based on all-optical oscillation and phase-amplitude conversion. The method comprises the steps that spontaneous radiation light generated by an erbium-doped optical fiber amplifier is used as an optical carrier; modulating a weak radio frequency signal to be measured received by an antenna to the optical carrier through an optical modulator to form a modulated optical signal; the modulated optical signal is injected into an all-optical oscillation circuit composed of double loops, the all-optical oscillation circuit generates multimode optical oscillation by adjusting an optical attenuator, and the all-optical oscillation circuit comprises a double-loop interference structure; performing phase-amplitude conversion by adjusting the delay difference of the two light paths in the double loops to form an equivalent microwave photon filter so as to select and amplify the modulated light signal corresponding to the radio frequency signal of the set frequency band; and converting the selected and amplified modulated optical signal into an electric signal, and performing spectral analysis to detect the weak radio frequency signal to be detected.

The invention relates to the technical field of battery manufacturing, and particularly discloses a gluing quality detection method and system. The gluing quality detection method comprises the following steps: driving a camera to return along the original path of a gluing track by using a robot which finishes gluing to carry out segmented shooting on the gluing track of a workpiece, so as to obtain a plurality of glue line images; performing parallel processing on the plurality of glue line images to obtain a plurality of colloid regions and obtain colloid boundary contours in the colloid regions; calculating a glue width mean value, a glue width standard deviation or a glue spacing mean value of the gluing track according to the glue boundary contours in the plurality of glue areas; and according to the glue width mean value, the glue width standard deviation or the glue spacing mean value, the gluing track quality is judged. The gluing robot is used for driving the camera to return along the gluing track along the original path for shooting, the camera moves along the whole gluing path and collects images through the track synchronous flying shooting technology, and the problem of detection blind areas caused by view limitation of large-size workpieces is fundamentally solved.

This utility model belongs to the field of lithium battery technology, specifically relating to a circuit for cascaded detection logic control to protect multiple lithium battery strings. By cascading multiple single-cell lithium battery protection ICs and combining them with a logic control circuit constructed using PNP transistors, the circuit can precisely control the conduction or cutoff of the charging / discharging MOSFETs based on the output signal of each single-cell lithium battery protection IC, thereby achieving efficient protection for multiple lithium battery strings. The simple cascading method adapts to lithium battery packs with different numbers of strings, eliminating the need for complex protection circuits for each string, greatly reducing hardware costs and system complexity. The number of cascaded single-cell lithium battery protection ICs can be flexibly adjusted according to actual needs, making it suitable for battery pack applications in consumer electronics and power tools where cost control is crucial. Therefore, it not only solves the problems of high cost and complex design in existing technologies but also improves the stability and reliability of the system.

The invention discloses intelligent online monitoring equipment applied to a cable joint, which belongs to the technical field of cable detection and comprises a transmission optical fiber, a fiber bragg grating sensor, an optical fiber demodulator, a data processing unit and an intelligent early warning unit. The transmission optical fiber is used for monitoring signal transmission; the sensor is installed at a key temperature measurement part of a cable joint and is connected in series through optical fiber fusion to form a sensing network. The optical fiber demodulator realizes multi-joint positioning monitoring and wavelength offset acquisition through a wavelength division multiplexing or time division multiplexing technology; the data processing unit converts the wavelength offset into temperature variation; and the intelligent early warning unit adopts a convolutional neural network, a bidirectional long-short-term memory network and a self-attention mechanism mixed model to realize fault grading early warning and temperature rise trend advanced pre-judgment. The cable joint fault early warning system does not need field power supply, is high in anti-electromagnetic interference capability, can realize all-weather online monitoring and accurate positioning, and effectively improves the accuracy and timeliness of cable joint fault early warning.

The application discloses a kind of terminal post bolt loosening detection method, device, equipment and readable storage medium, it is related to new energy automobile motor technical field, comprising: the current speed of vehicle driving motor is obtained, the current state of vehicle is judged according to the current speed of vehicle driving motor;When the current state of vehicle is stationary state, detection signal is injected to vehicle driving motor, the impedance angle of motor phase winding is calculated according to the detection signal and the feedback signal of acquisition, whether the terminal post bolt of vehicle driving motor is loosened according to the impedance angle of motor phase winding calculated;When the current state of vehicle is running state, the motor current unbalance degree is calculated according to the three-phase current of vehicle driving motor, and whether the terminal post bolt of vehicle driving motor is loosened according to the motor current unbalance degree calculated.The application judges whether the terminal post bolt loosens in the stationary, running state of vehicle, realizes low cost, high reliability on-line detection.

The utility model belongs to the technical field of material receiving devices, and provides a material receiving mechanism, which comprises a support frame, a plurality of material trays, a plurality of material receiving devices and a plurality of material receiving devices, the material distributing piece is arranged on the supporting frame and has a first supporting state and a tray distributing state, the supporting table is movably arranged on the supporting frame, and the supporting table has a tray taking state and a second supporting state. Compared with the prior art, the material distributing piece with the first supporting state and the tray distributing state is arranged, and the supporting table movably arranged on the supporting frame is matched, so that a plurality of trays stacked in multiple layers are automatically separated and received layer by layer, and the trays can be taken and placed layer by layer without depending on external carrying equipment; the material receiving capacity and the automation degree are effectively improved, the manual operation intensity and the system complexity are reduced, and the overall production efficiency is improved.

The application discloses an access management method and device for heterogeneous devices of an Internet of Things platform, equipment and a storage medium. The method comprises the following steps: registering the heterogeneous devices based on a pre-constructed communication model and a data model; receiving an access request of a to-be-connected device, and matching the access request with the registered heterogeneous devices to perform identity authentication on the to-be-connected device; when it is determined that the to-be-connected device is a legal device, determining a matched data model and a matched communication model of the to-be-connected device, and performing access management on the to-be-connected device based on the matched data model and the matched communication model. The above embodiment registers the heterogeneous devices through the communication model and the data model, performs identity authentication on the to-be-connected device, and performs access management on the legal device and the matched data model and the matched communication model, so that the system complexity and the device access cost of the Internet of Things platform are obviously reduced.

This invention discloses a trajectory compensation method, device, and medium for cable-driven joints in robotic arms, belonging to the field of trajectory tracking for cable-driven joints in robotic arms. The method includes: Step 1, establishing a kinematic model of the cable-driven joint based on its structural parameters; Step 2, establishing a dynamic model of the cable-driven joint based on the kinematic model established in Step 1, combined with cable elasticity, damping, and sheave friction; Step 3, designing an excitation trajectory using finite-term Fourier series and identifying the dynamic model of the cable-driven joint established in Step 2 using a particle swarm optimization algorithm; Step 4, calculating the compensation amount for the actual execution trajectory based on the identified dynamic model of the cable-driven joint in Step 3, and controlling the cable-driven joint to execute the compensated trajectory according to the compensation amount. This method significantly improves the trajectory tracking accuracy and execution stability of the robotic arm.

The application provides a flight and land control method of a coaxial amphibious unmanned aerial vehicle, comprising the following steps of: obtaining a desired space position quantity in a flight mode, and solving a posture angle signal and a lift signal by a position controller and a speed controller in combination with a state variable in a dynamic model of the unmanned aerial vehicle in the flight mode; inputting the posture angle signal and the state variable into an attitude control module to obtain a desired torque signal; giving control signals of upper and lower motors and a rudder motor according to the desired torque signal and the lift signal by using a control instruction distributor, and controlling an actuator to execute a flight task according to the control signals. The control strategy of land mode power transmission control can control the left and right rotors of the body to rotate at the same speed and in the same direction when executing straight forward movement. When performing a backward movement, the left and right rotors are controlled to be reversely rotated synchronously.

The application provides a satellite configuration and switching method of a multi-band planar phased array antenna, which comprises a satellite platform 1, a flat panel antenna group and a solar cell array 5, the flat panel antenna group comprises multiple flat panel antennas of different frequency bands and is connected to the top plate of the satellite platform 1, the solar cell array 5 is connected to the bottom plate of the satellite platform 1, when in a launching state, the multiple flat panel antennas of different frequency bands are all folded and close to the first side surface, and the solar cell array 5 is folded and close to the second side surface; when in a flying state, the multiple flat panel antennas of different frequency bands are all unfolded until the multiple flat panel antennas of different frequency bands and the top plate of the satellite platform 1 are located in the same plane, and the solar cell array 5 is unfolded until the solar cell array 5 and the bottom plate of the satellite platform 1 are located in the same plane. The satellite configuration has stable structure and can bear large-size and large-mass load, and has high adaptability to satellites with flat panel type effective load in the current sun-synchronous orbit and low-inclination orbit.

This application relates to the field of water treatment technology, and discloses a control method, water treatment device, and medium for a water treatment apparatus. The method includes: in response to a venting command, a controller controls the venting valve to open and controls the water pump to start; after the water pump starts, a negative pressure is generated inside the hot tank; a one-way air inlet valve is configured to automatically open when its positive pressure value is greater than a first threshold, and a one-way air outlet valve is configured to automatically open when its positive pressure value is greater than a second threshold; during the venting process, the controller keeps the venting valve open and the water pump running until a preset venting termination condition is met. This application utilizes the automatic pressure response characteristics of a mechanical one-way valve to achieve adaptive adjustment of negative pressure during the venting process without the need for a pressure sensor and an electrically controlled air inlet valve, simplifying the control logic, reducing hardware costs, and improving venting efficiency and system reliability.

The invention discloses an instrument desk assembly and a vehicle, and relates to the technical field of vehicles. The instrument desk assembly comprises an instrument desk, an air guide pipe and a humidifying module, wherein an air outlet is defined in the instrument desk; an air duct is defined by the air guide pipe, one end of the air duct is used for being communicated with an air source, and the other end of the air duct is communicated with the air outlet; the humidifying module comprises a main body part connected with the pipe wall of the air guide pipe, and a water storage cavity is defined in the main body part; wherein a plurality of first capillary holes are defined in the pipe wall of the air guide pipe, and the first capillary holes are communicated with the water storage cavity and the air channel. The humidification module of the instrument desk assembly does not need to be driven by additional power, and energy consumption and system complexity are effectively reduced while the requirement for humidification in a vehicle is met.

This invention discloses a light-driven antibacterial-dehumidification synergistic system for agricultural greenhouses, comprising an agricultural greenhouse, a light source module, and an antibacterial-dehumidification module. The light source module includes a condenser lens, a first beam splitter, a second beam splitter, and a reflector, capable of generating visible light, ultraviolet light, and infrared light; it also includes visible light emitting elements, ultraviolet light emitting elements, and infrared light emitting elements. The antibacterial-dehumidification module includes a connected processing air channel and a regeneration air channel, which intersect to form a dehumidification zone containing a solid dehumidifier. The processing air channel has a sterilization zone, and both ends of the dehumidification zone are equipped with three-way reversing valves. By adopting the above configuration, sunlight can be concentrated and split, and matched with the emitting elements to provide visible light, ultraviolet light, and infrared light around the clock, promoting crop photosynthesis, air sterilization, and dehumidifier photothermal regeneration. This constructs a new, efficient, safe, and multi-purpose synergistic approach to solar energy development and utilization, providing a green and efficient antibacterial-dehumidification technology solution for agricultural greenhouses.

The invention provides a rope fixed-length cutting structure with a rope clamping mechanism and a transmission mechanism cooperating. The rope fixed-length cutting structure comprises the transmission mechanism, the rope clamping mechanism, a transmission rack and a rope breaking mechanism. The rope clamping mechanism comprises a first clamping jaw, a clamping seat, a first spring, an ejector rod and a push rod, the first clamping jaw is arranged on the clamping seat, the clamping seat is arranged on the transmission mechanism, the transmission rack is provided with a track above the rope clamping mechanism, and the track is provided with arc-shaped deformation parts corresponding to the two ends of the transmission mechanism; one end of the ejector rod is matched with the first clamping jaw in a pushing mode so that the first clamping jaw can be opened and closed, a first spring is matched between the ejector rod and the first clamping jaw, the other end of the ejector rod is matched with the bottom end of the push rod in a pushing mode, and the top end of the push rod is arranged in the rail in a rolling fit mode. The push rod moves up and down to push the ejector rod to move horizontally, so that the first clamping jaw is opened and closed; the rope breaking mechanism is arranged between the transmission mechanism and the seedling clamping mechanism and used for cutting off the rope, and fixed-length cutting of the rope is achieved through cooperation with the structure.

The application discloses a steel heat treatment temperature field simulation and feedback control method and system, and relates to the technical field of industrial intelligent control, and comprises the following steps: heat transfer calculation is carried out by constructing a furnace space grid and boundary conditions, a predicted temperature field is obtained, and a temperature deviation field is formed in combination with a measured temperature; an abnormal area is identified based on a deviation gradient, a reverse tracing model is established by using a multi-time temperature evolution track, a heat source disturbance is inverted, and the temperature field is corrected; a power-temperature dynamic mapping relationship is constructed by power excitation, and a dominant control mode is extracted by dimension reduction; a control vector is solved by decomposing the difference value between the corrected temperature field and a target temperature field on the dominant mode, and a power regulation amount is obtained by reconstruction; an over-limit peak value is inhibited by combining temperature evolution prediction, an execution power instruction is generated, and accurate regulation and optimization of the temperature field are realized.

The application discloses an oil automatic filling device in the technical field of engineering machinery, which comprises a cover removing manipulator for opening a filling port cover, a quick-change connecting disc for connecting different types of filling gun assemblies, at least one industrial manipulator for driving the cover removing manipulator and the quick-change connecting disc to realize X / Y / Z direction movement and rotation, a compressed air source for driving the cover removing manipulator and the quick-change connecting disc to realize clamping operation and quick-change operation, and an image acquisition device for acquiring a position image and transmitting the image to a server after image processing, so that the server plans a motion track of a joint of the industrial manipulator. The cover removing manipulator, the quick-change connecting disc, the industrial manipulator, the compressed air source and the image acquisition device are integrated to simulate the functions of manually opening the filling port cover and filling oil, so that full automation and intelligent control of the oil filling process are realized. The pneumatic quick-change disc structure is adopted to realize quick matching of the filling gun for different types of filling ports.

The application discloses a synchronous metronome, a data acquisition synchronization device and a dual-computer hot backup system, relates to the technical field of dual-computer hot backup, and comprises a frame signal clock generation module, a signal detection module and a frame synchronization signal generation module.The frame signal clock generation module is used for mixing the first clock signal and the second clock signal to obtain a mixed signal, and processing the mixed signal into a first frame signal clock with a preset frequency.The signal detection module is used for outputting a synchronization start signal when the second clock signal and the first clock signal are detected.The frame synchronization signal generation module is used for generating a frame synchronization pulse signal according to the first frame signal clock when the synchronization start signal is detected.The application solves the problem that in the dual-computer high-availability scheme, the real-time accuracy of software implementation depends on the operating system, and it is difficult to ensure the consistency of the working rhythm of the dual computer.

The invention provides log collection and firmware upgrading equipment and method.The equipment comprises an equipment interface used for receiving running log data of a tested product and writing firmware data into the tested product; the local storage unit is used for storing running log data and firmware data; the communication unit is connected with the local storage unit and is used for uploading the running log data to a server and downloading firmware data from the server; the controller is configured to store the running log data in the local storage unit in response to the collected running log data; the communication unit is controlled to be started to upload the running log data to a server; and responding to the firmware data received by the communication unit, storing the firmware data in the local storage unit, and writing the firmware data into the tested product through the equipment interface. In the device, log collection and firmware upgrading are realized by multiplexing each unit, and the multiplexing mechanism integrates two independent steps into a single device, so that the number of hardware and the system complexity can be reduced.

The invention relates to the technical field of aero-engines, in particular to an integrated pre-cooling device. Comprising a pre-cooling mechanism, a heat dissipation mechanism and an electromagnetic driving mechanism, the pre-cooling mechanism comprises a fluid channel and a first heat exchange channel, first fluid can circulate in the fluid channel, and second fluid can circulate in the first heat exchange channel; the heat dissipation mechanism comprises a heat dissipation inner cavity and a second heat exchange channel, third fluid can circulate in the heat dissipation inner cavity, and the first heat exchange channel communicates with the second heat exchange channel; the electromagnetic driving mechanism comprises an electric driving assembly and a magnetic driving assembly, the electric driving assembly can conduct current in the second fluid, the magnetic driving assembly is used for generating a magnetic field perpendicular to the second heat exchange channel, and the current and the magnetic field interact to drive the second fluid to flow; the second fluid and the third fluid can exchange heat, and the second fluid can continuously exchange heat with the first fluid. Therefore, the second fluid is directly driven to circulate, the reuse of heat exchange and pumping functions is realized, and reliable circulating driving of large-flow liquid metal in a limited space is guaranteed.

This invention relates to the field of exoskeleton robot technology, specifically disclosing a rehabilitation exoskeleton robot and its control method. The rehabilitation exoskeleton robot includes a wearable component, a drive component, a sensor component, a visual perception component, and a control component. This invention can adjust the tightening length of the left and right tension bands based on perceived data, thereby controlling the swing leg's movement angle. This reduces cost and system complexity, improves gait recognition accuracy through multi-source sensor fusion, meets the rehabilitation needs of transitional postures, and expands the application scenarios of the exoskeleton. It solves the technical problem in related technologies where the flexible exoskeleton drive structure has poor gait recognition accuracy for transitional postures during rehabilitation training primarily involving walking on flat ground or climbing stairs. Furthermore, the inclusion of a visual perception component allows for the collection of data on moving and static obstacles, thereby addressing the issues of insufficient anti-interference capability and low safety of the walking system in the user's walking environment.

The application relates to an enhanced detection method based on a reconfigurable intelligent surface assisted radar, which comprises the following steps: an electromagnetic scattering characteristic model of an enhanced detection system comprising a radar, a target and an RIS array is established; a power ratio of a radar direct link and an RIS link is obtained based on the electromagnetic scattering characteristic model, and the power ratio of the radar direct link and the RIS link is used as an optimized objective function; the reflection coefficient matrix of the RIS array is optimized and solved to maximize the objective function, so that an optimal coding matrix is obtained; the reflection coefficient of each RIS unit is obtained according to the optimal coding matrix, and then the state of each unit of the RIS array is obtained, and an enhanced detection system integrating the RIS array and the radar is constructed. According to the application, a new autonomous controllable transmission link is constructed between the target and the radar receiver, and the radar system only needs to perform coherent processing on the double-link received echo signals in the back-end signal processing, so that the radar receiving echo power can be enhanced.

The utility model discloses a kind of dual-frequency dual-mode dual-polarization wearable antennas, belong to antenna technical field.The antenna uses flexible substrate, which is provided with circular radiation patch and ground plane.Through etching multiple slot structure on circular radiation patch, including center inclined rectangular slot, rectangular slot and trapezoidal slot symmetrical along y axis, rectangular slot gap symmetrical along x axis, and T-shaped slot and U-shaped slot distributed on different azimuth angle, antenna can realize left-handed circular polarization directional radiation in 2.4GHz ISM frequency band, and realize linear polarization omnidirectional radiation in 5.5GHz Wi-Fi frequency band.The utility model uses above-mentioned one kind of dual-frequency dual-mode dual-polarization wearable antenna, antenna design is simple, excellent in performance, suitable for remote medical monitoring, high-speed data transmission and multiple application scenarios, with wide application prospect.

The application discloses a DDPF active regeneration control method based on engine body far post-injection, relates to aftertreatment, and has the steps that a first temperature test point is arranged on the inlet side of a DDPF, a second temperature test point is arranged on the outlet side of the DDPF, the DDPF regeneration is controlled according to the mapping relationship between the first temperature test point, the second temperature test point and a set DDPF regeneration temperature parameter, and the DDPF is subjected to regeneration thermal management in the mode of engine body far post-injection during the DDPF regeneration. The application uses the engine body far post-injection as an HC supply source, significantly reduces the hardware cost and system complexity, and simultaneously realizes accurate regeneration temperature management through the closed-loop control of the DDPF outlet temperature T6, so that the DDPF is protected from being burned by high-temperature regeneration.

This invention relates to the field of power Internet of Things (IoT) technology, and in particular to a passive maintenance device and method for IoT terminal equipment. The device includes: a passive NFC tag for storing configuration information of the terminal; a handheld writing device for writing configuration information to the passive NFC tag via electromagnetic coupling; an IoT terminal, which internally includes an NFC communication module and a main control chip; the NFC communication module, which, after the IoT terminal is powered on, reads the configuration information from a nearby passive NFC tag via electromagnetic coupling; and the main control chip, which is connected to both the NFC communication module and the storage unit, and is configured to compare the read configuration information with locally stored information, update the locally stored information when there is a discrepancy, and report the updated information to a host computer system after networking.

The invention discloses a bipolar DC power distribution network comprehensive voltage regulation and control method based on a multi-dimensional flexible interconnection device, and the method comprises the steps: 1, constructing the multi-dimensional flexible interconnection device with a multi-dimensional power regulation capability, and proposes a bipolar DC power distribution network-oriented comprehensive voltage regulation and control method based on the multi-dimensional flexible interconnection device; 2, designing and analyzing a topological structure and a power transmission model of the flexible interconnection equipment, and revealing a multi-dimensional adjustment characteristic of the flexible interconnection equipment; 3, according to the bipolar DC power distribution network model, obtaining photovoltaic renewable energy output data, DC load data and multi-dimensional flexible interconnection equipment parameter data in the power distribution network; and 4, considering the cooperation of the bipolar flexible interconnection equipment and other adjusting equipment, and establishing a comprehensive voltage regulation and control model by minimizing the operation cost and the voltage out-of-limit cost. According to the invention, controllable transmission of power can be realized, the voltage quality of the system is effectively improved, and the operation loss and voltage unbalance degree of the power distribution network are reduced.

The present invention relates to a phase coded unsaturated modulation method and apparatus, distance and velocity measurement method using lidar and lidar system, by using phase-unsaturated modulation, a modulated laser signal comprises both a single-frequency component and a phase-modulated component with the same or close energy ratio, wherein the single-frequency component can be used to obtain the velocity of relative motion between the platform and the target and to compensate for the frequency drift of a seed laser, the obtained relative Doppler frequency is used to construct a matched filter function to perform pulse compression of the phase-coded signal, and further to obtain the distance information between the target and the platform. The invention can simultaneously complete distance and velocity measurement with high accuracy, low error, small calculations and low system complexity.