466 results about "Microwave frequency" patented technology

The invention provides a self-adaptive impedance matching method and system of a microwave frequency band. The method comprises the following steps: performing initial impedance measurement on a plurality of microwave component ports to obtain a complex impedance parameter as a matching reference; in the operation process, a current impedance state and a reflection coefficient are collected through a reflection monitoring mechanism, and a dynamic impedance state vector is constructed; inputting the state information into an adaptive algorithm module, generating a matching parameter vector and configuring an adjustable device to realize real-time adjustment of a matching network; calculating a matching error according to the current reflection state and a target reference value, and driving parameters to be iteratively updated; after the matching precision requirement is met, the final parameters are loaded to the controller to complete actual configuration; meanwhile, the system periodically collects environmental parameters and matching effects, and dynamically judges whether rematching is needed or not so as to maintain long-term stable operation of the system. The method has the capabilities of automatic sensing, closed-loop optimization and environmental change adaptation, and can improve the matching efficiency and signal transmission quality of a microwave system under multi-band and high-dynamic working conditions.

The invention relates to the technical field of atomic clock control, and discloses a punctuality type atomic clock control method based on a microwave frequency band. The method comprises the following steps: firstly, acquiring microwave frequency band signal data and atomic state data, and constructing a time calculation model in combination with historical operation data to output a theoretical time value; performing multi-dimensional difference analysis on the theoretical time value and the actual measurement time value to generate a time difference coefficient matrix; inputting the matrix into a spatial propagation analysis network, and combining atomic clock component parameters and environmental parameters to generate a time anomaly probability distribution diagram; and finally, configuring microwave control parameters according to the distribution diagram, including starting a high-frequency monitoring mode for a high-probability abnormal region and applying a disturbance test to adjacent frequency bands. According to the method, through multi-dimensional data modeling, difference analysis and dynamic parameter configuration, the accuracy and adaptability of atomic clock control are improved, and the operation stability of the atomic clock in a complex environment can be enhanced.

The invention discloses a method and a system for measuring gravitational potential and altitude through air-ground double-frequency combined frequency transmission. The method comprises the following steps: acquiring a ground observation value and a space observation value of an air-ground microwave signal transmitted by adopting an air-ground double-frequency combined microwave frequency transmission model; extracting a gravity frequency shift signal based on the ground observation value and the space observation value; calculating a gravity potential difference between the space and the ground based on the extracted gravity frequency shift signal, and calculating a gravity potential of a space carrier in combination with a gravity field model; and determining the gravitational potential and altitude of any ground station based on the gravitational potential of the space carrier in combination with the gravitational potential difference between the space and the ground. According to the invention, the gravity frequency shift signal is accurately extracted and the gravitational potential and the altitude are measured by using the air-ground dual-frequency combined microwave frequency transmission.

The invention relates to the field of food processing, and discloses a pet food hot air drying processing technique which comprises the following steps: heating raw materials by using microwaves, and exciting and evaporating moisture in the raw materials by radiating the raw materials on a conveying belt through the microwaves; moisture on the surface of the food is removed through hot air drying; microwave heating and hot air drying processes are carried out synchronously, and processing data are regulated and controlled in real time through an intelligent control system. The microwave heating is realized through a frequency-adjustable microwave emitter, and the microwave frequency adjustment range of the frequency-adjustable microwave emitter is 2400 MHz to 2500 MHz. The scheme of combining microwave and hot air drying technologies is adopted, microwave is used for heating internal moisture, a hot air system is matched for removing surface moisture, microwave power and hot air temperature are adjusted in real time, the uniform drying effect is achieved, surface hardening is effectively avoided, it is ensured that moisture inside and outside food is uniformly released, and drying quality and efficiency are improved.

The invention provides an active regulation and control device for a microwave resonant cavity based on Rydberg atoms. The microwave resonant cavity comprises a protective shell, an atomic gas chamber and a photoelectric detector, the active regulation and control device comprises a PID control module and piezoelectric ceramics, the PID control module is used for processing a received EIT transmission spectrum signal after generating a modulation signal to carry out atomic resonant frequency scanning on the atomic gas chamber, obtaining a target resonant frequency through a current feedback zero crossing point corresponding to an EIT transmission spectrum valley bottom value, and generating a deviation correction signal; and the piezoelectric ceramic is used for adjusting the length of a protective shell of the microwave resonant cavity according to the received correction signal, so that the atomic resonant frequency is locked as the target resonant frequency. The invention further provides an active regulation and control method for the microwave resonant cavity based on the Rydberg atoms. According to the invention, the resonant frequency of the microwave resonant cavity can be rectified in real time, and the optimal and most stable resonant mode of the local oscillation microwave frequency responding to atoms is kept.

The invention discloses an unmanned aerial vehicle co-frequency resonance deicing device and a deicing method, and relates to the field of high-voltage overhead conductor deicing, an unmanned aerial vehicle device is provided with a deicing device, the deicing device comprises a microwave generator and an ultrasonic generator which are oppositely arranged, and a power transmission line is located between the microwave generator and the ultrasonic generator. Microwaves and ultrasonic waves emitted by the microwave generator and the ultrasonic generator face the power transmission line; the deicing device comprises a resonant frequency detection device, the resonant frequency detection device is used for obtaining the resonant frequency of the icing position of the power transmission line, the frequency of ultrasonic waves emitted by the ultrasonic generator is the same as the resonant frequency of the icing position of the power transmission line, and the frequency of microwaves emitted by the microwave generator is the same as the resonant frequency of the icing position of the power transmission line. The ice layer is cracked by utilizing high-frequency vibration heating generated by ultrasonic waves and microwaves, so that the purpose of removing the ice layer is achieved. According to the method, a power grid line does not need to be contacted, and line damage possibly caused by direct impact is avoided.

The invention belongs to the field of terahertz frequency multiplier performance testing, and particularly relates to an efficient testing system and method for a millimeter wave terahertz frequency multiplier. According to the method, the vector network analyzer adjusts the port output power of external expansion devices such as an S parameter test module, a frequency multiplication source module or an amplifier, and meanwhile, the vector network analyzer completes a spectrum analysis function based on the S parameter test module. According to the method provided by the invention, a vector network analyzer host based on a microwave frequency band is matched with a frequency expansion module, so that efficient testing of various parameters of the frequency multiplier is realized.

The invention provides a microwave superheterodyne frequency sweep measurement system based on Rydberg atoms, and belongs to the technical field of microwave frequency measurement. The laser module excites detection light of 780 nm and coupling light of 480 nm, and the two beams of light are reversely input into the atomic gas chamber through the dichroscope; signal microwaves are generated by a radio frequency signal source and are radiated to the position of the atomic gas chamber through the horn antenna; local oscillation microwaves are generated by the microwave module and are also radiated to the position of the atomic gas chamber through the horn antenna; the atomic gas chamber serves as a mixer to form a difference frequency signal; the spectrum analyzer is used for monitoring low-frequency difference frequency signals generated in the frequency mixing process in real time and recording signal intensity in real time. According to the invention, high-precision and wide-band microwave frequency measurement is realized, continuous and smooth frequency sweeping response can be provided in a frequency range, and absolute frequency detection of microwave signals is realized under the condition that a complex frequency comb technology is not introduced. The hardware architecture is simplified, the automation degree is improved, and integration, popularization and application are facilitated.

Coherent wavelength division multiplexing is provided using frequency comb sources for both the transmitter and the local oscillator (LO) in the receiver. The local oscillator is made phase coherent with the received multifrequency optical signal using two analog control loops. One of the control loops locks an optical frequency of the local oscillator to an optical frequency of the received frequency comb. The other control loop locks a microwave frequency of the local oscillator (i. e. LO the comb spacing) to the comb spacing of the received frequency comb. As a result, coherent detection is enabled in all channels with just two analog control loops. Control signals for the two loops can be derived from two of the received channels individually (asymmetric carrier recovery), or they can be derived from sum and difference signals from two of the received channels (symmetric carrier recovery).

The invention discloses a broadband wave-absorbing metamaterial of a cone-cap-like structure and application of the broadband wave-absorbing metamaterial, and belongs to the technical field of electromagnetic metamaterials. The broadband wave-absorbing metamaterial with the cone-cap-like structure comprises a rectangular shell, a hollow cylindrical table and a cone, an open groove is formed in one surface of the rectangular shell; the hollow cylindrical table is arranged in the open groove, and the outer side wall of the hollow cylindrical table is externally tangent to the inner side wall of the rectangular shell; the cone is arranged in the hollow cylindrical table, and the bottom face of the cone is connected with the bottom face of the hollow cylindrical table. The broadband wave-absorbing metamaterial structure adopting the cone-cap-like design shows excellent broadband wave-absorbing capacity in a microwave frequency band, wave-absorbing characteristics can be accurately controlled by adjusting key parameters, different application requirements are met, the broadband wave-absorbing metamaterial has excellent anti-polarization interference capacity and stability of wave-absorbing performance, and the broadband wave-absorbing metamaterial is suitable for being used in the microwave field. The method has the production advantages of rapidness, low cost and high efficiency.

An unidentified aerial phenomena field disturbance detector includes an accelerometer configured to measure a gravitational field surrounding the unidentified aerial phenomena field disturbance detector; a magnetometer configured to measure a magnetic field surrounding the unidentified aerial phenomena field disturbance detector; a microwave frequency detector configured to measure a specific band of microwave frequencies surrounding the unidentified aerial phenomena field disturbance detector; a controller; and an optical indicator configured to optically communicate information to a user of the unidentified aerial phenomena field disturbance detector. The controller determines a change in the gravitational field surrounding the unidentified aerial phenomena field disturbance detector when generates gravitational field values are outside a predetermined range of non-event field values. The controller controls the optical indicator to optically communicate the determined change in the gravitational field surrounding the unidentified aerial phenomena field disturbance detector.

The invention discloses a quantum magnetometer device based on a diamond nitrogen-vacancy color center. The quantum magnetometer device comprises a laser emission unit used for generating a 532nm laser beam based on a laser trigger signal; the beam shaping unit is used for focusing the laser beam to the diamond sample; the diamond sample comprises an NV color center array with specific depth on the surface or in the diamond sample, and electrons in NV color centers are excited based on laser beams to transition and generate fluorescence; the fluorescence collection unit is used for separating exciting light from 650-800nm fluorescence signals and converting the fluorescence signals into multi-channel electric signals; the microwave radiation unit is distributed around a diamond sample space and emits three independently regulated microwave frequencies at the same time; and the control and processing unit is used for receiving and processing the multi-channel electric signals in real time and analyzing magnetic field parameters based on the optical detection magnetic resonance spectral line. Synchronous measurement of a three-dimensional magnetic field is realized, and the limitation of single-axis measurement of a traditional NV magnetometer is broken through.

The invention relates to a core temperature probe (1), having a temperature measuring device (3) with at least one temperature sensor (9), and having a signal transmission antenna (2) connected to the temperature measuring device (3) via a coaxial line (4), wherein via the signal transmission antenna (2) an item of temperature information determined by the at least one temperature measuring device (3) can be emitted at a signal transmission frequency which differs from a microwave frequency, wherein the coaxial line (4) has at least one line resonance element (11a, 11b, 12) set to the microwave frequency, and an electrically conductive plate (14a-14d) is provided at at least one boundary face of at least one such line resonance element (11a, 11b), said plate being electrically connected to an inner conductor (5) or an outer conductor (6) of the coaxial line (4). The invention also relates to a microwave cooking appliance having a signal transmission antenna, and to a system. The invention can be particularly advantageously applied to ovens which are configured to interact with a core temperature probe and also have a microwave function.

The invention relates to the technical field of communication and anti-interference, in particular to an ultra-wideband frequency hopping circuit and a fast synchronization method, which adopt an image frequency rejection receiving framework to dehop wideband microwave frequency hopping signals to obtain intermediate frequency signals, and adopt a mode of combining dual-channel AD differential sampling and rising edge detection with threshold detection to realize fast synchronization of the ultra-wideband frequency hopping signals. Precise identification and tracking of the phase of the envelope detection signal are realized, rapid following hopping of the local oscillation frequency hopping signal of the receiver is further realized, and the problems of complex synchronization circuit, poor acquisition precision, long synchronization process establishment time and the like in the traditional frequency hopping synchronization process are solved. According to the invention, while high-precision frequency hopping synchronization is realized, hardware resources are saved, and synchronization establishment time is shortened.

A system for insitu AESA calibration includes a radar receiver / excitor (XR). The calibrated XR functions as a precision multi-channel relative amplitude and phase microwave frequency measurement device that executes a known AESA calibration methodology. An integrated RF sensor system-level built in test (BIT) is utilized for prognostic health monitoring and self-healing calibration. During calibration, quadrants of the AESA are iteratively calibrated via measurements by the XR. I / Q values are balanced for each quadrant relative to each other without the need for a separately calibrated measurement device for absolute calibration. A near field probe may be disposed for radiative loopback measurements. A T / R calibration circuit receives the loopback measurements and data from a Tx channel.

The invention discloses a dual-frequency broadband microwave and millimeter wave common-aperture antenna, particularly relates to the technical field of microwave and millimeter wave communication, and solves the technical problem that the performance of a microwave and millimeter wave common-aperture antenna in the prior art is deteriorated due to the fact that mutual restraint between antennas is difficult to overcome. According to the technical scheme, a microwave magnetoelectric dipole antenna and a millimeter wave phase control patch antenna array are integrated; according to the invention, the problems of performance deterioration, incapability of scanning and the like of a sub-antenna under common-caliber integration are avoided, and based on a partial structure multiplexing design strategy, the broadband millimeter wave patch antenna array is multiplexed as a parasitic radiation patch of the microwave antenna to expand the microwave frequency band bandwidth, the microwave antenna bandwidth improvement target is additionally achieved, and the dual-frequency broadband effect is realized.

The invention discloses a diamond low-frequency current measurement method with nonlinear response to magnetic field intensity, which is characterized in that two coils are wound on a magnetic flux collector with a communicated structure, a high-frequency (800Hz) high-voltage (7V) driving current is injected into one of the coils, a magnetic field generated by the coil is amplified through the magnetic flux collector and guided to an area where an NV color center magnetometer is located, and the NV color center magnetometer is located; and the signal is driven to enter a nonlinear response interval in the demodulated ODMR spectrum. A weak (1-50mV) to-be-measured low-frequency (0.1-10Hz) current signal is injected into the other coil, amplitude modulation is performed on the weak (1-50mV) to-be-measured low-frequency (0.1-10Hz) current signal by using the same frequency as the driving current, and the weak (1-50mV) to-be-measured low-frequency (0.1-10Hz) current signal is amplified by the magnetic flux collector and guided to the NV The microwave frequency is locked at the maximum slope point of the ODMR frequency spectrum through CW-ODMR phase-locked amplification, so that the relationship between the change of the red fluorescence signal intensity and the size of the external magnetic field is obtained, and the signal intensity of the low-frequency current magnetic field to be measured is measured according to the relationship.

The invention belongs to the technical field of terahertz mixer testing, and relates to an efficient testing method and system for a millimeter wave terahertz mixer. The test system comprises a vector network analyzer and a terahertz S parameter test module. According to the difference of radio frequency and local oscillation frequency caused by the frequency mixing times of a to-be-tested frequency mixer, test platforms of two structures are arranged; the first test platform comprises a vector network analyzer, a first terahertz S parameter test module and a second terahertz S parameter test module, wherein the first terahertz S parameter test module and the second terahertz S parameter test module are connected with the vector network analyzer. The second test platform comprises a vector network analyzer and a terahertz S parameter test module connected with the vector network analyzer. According to the test method provided by the invention, a vector network analyzer host based on a microwave frequency band is combined with a terahertz S parameter test module to realize efficient test of a terahertz frequency band mixer; the problems that an existing terahertz frequency mixer is low in testing efficiency, complex in testing and high in cost are solved.

The invention discloses airborne radar interference equipment of a phased array system in the technical field of radar countermeasure. The airborne radar interference equipment comprises an antenna array; a plurality of transmit-receive assemblies comprising a plurality of transmit-receive channels, wherein each transmit-receive channel comprises a numerical control attenuator and a numerical control phase shifter; the beam control unit controls the numerical control phase shifter and the numerical control attenuator; the power divider / combiner is used for combining or dividing the signals; the circulator is used for realizing one-way transmission of signals; the low-noise amplifier is used for performing low-noise amplification on the signal; the microwave frequency conversion unit is used for performing down-conversion and up-conversion processing on the signal; the digital processing unit is used for processing the intermediate frequency signal to form an interference signal; and the main control unit communicates with the digital processing unit to control an interference pattern, and communicates with the beam control unit to control beam pointing, frequency, attenuation and an enable signal of a transmit-receive assembly. The airborne radar interference equipment can realize interference signals with high power and beam scanning, and has the advantages of high equivalent radiation power and rapid interference scanning.

The utility model discloses a spin multiplexing dynamic holographic imaging device, which relates to the technical field of microwave frequency band electromagnetic wave regulation and control and comprises a plurality of dynamic achiral elements, and each dynamic achiral element sequentially comprises an umbrella-shaped patch structure, an upper-layer medium, a metal reflection back plate, a middle-layer medium, a feeder line structure and a lower-layer medium from top to bottom. The umbrella-shaped patch structure comprises a first arc arm, a second arc arm and a middle shaft, and PIN diodes are symmetrically embedded into the first arc arm and the second arc arm relative to the middle shaft. According to the utility model, the working states of the PIN diodes on the first arc arm and the second arc arm are respectively regulated and controlled, so that independent regulation and control of left-handed and right-handed circular polarization co-polarization reflection amplitudes and phases under the incidence of orthogonal circular polarization waves are realized; and arranging the plurality of dynamic achiral elements according to the regulated amplitude and phase distribution to form a spin multiplexing dynamic holographic imaging device, and respectively generating two completely different holographic images which are designed in advance in the corresponding polarization channels.

Various embodiments provide an interface joint for interconnecting an electrosurgical generator, a fluid supply, and an electrosurgical instrument. The interface joint comprises a housing having: an electrical inlet for receiving radiofrequency (RF) electromagnetic (EM) energy and / or microwave frequency EM energy from the electrosurgical generator; a fluid inlet for receiving fluid from the fluid supply; and, an outlet. The interface joint also comprises a single cable assembly for connecting the outlet to an instrument tip of the electrosurgical instrument. The single cable assembly comprises: a flexible shaft having: a coaxial cable that is connected to the electrical inlet; and a fluid channel that is in fluid communication with the fluid inlet. The housing includes a first portion and a second portion, the second portion being attached to the single cable assembly such that rotation of the second portion effects rotation of the single cable assembly; and the first portion being rotatable relative to the second portion. The first portion includes a first inlet, and the second portion includes a second inlet, wherein the first inlet is one of the fluid inlet or electrical inlet, and the second inlet is the other of the fluid inlet or electrical inlet.

The invention discloses an automobile structure assembly gluing heat treatment method and system based on frequency conversion microwaves. The method comprises the steps that the surface of an automobile structure assembly is subjected to activating treatment through a plasma spraying technology; the method comprises the following steps: coating a to-be-glued automobile structure component with an adhesive, carrying out heat treatment on the coated automobile structure component by adopting a variable-frequency microwave generator, dynamically adjusting the microwave frequency to realize uniform heating of the interior of an adhesive layer, monitoring the temperature field distribution of the adhesive layer in real time, and dynamically adjusting the microwave power output; in the microwave heat treatment process, pressure is applied synchronously to promote discharge of bubbles in the adhesive layer and improve the compactness and mechanical property of the adhesive layer; and a gradient cooling mode is adopted for cooling the automobile structure assembly subjected to heat treatment. According to the embodiment of the invention, the bonding quality and durability of the automobile structural component can be remarkably improved through frequency adjustment, temperature monitoring, bubble removal and pressure application in the microwave heating process.

The utility model discloses a vector signal comprehensive test module, which consists of an internal reference clock and a VCO (Voltage Controlled Oscillator), and the reference clock has an internal and external switching function. The VCO adopts a multi-output phase adjustable device and provides local oscillation signals for the two RFICs and the six frequency conversion circuits respectively. The two RFICs are connected in parallel, and an external coherent local oscillator is provided by the VOC, so that the coherence of the two RFICs is realized. The microwave frequency conversion circuit realizes the frequency expansion function of the RFIC, expands two-path emission frequency and four-path reception frequency from tens of MHz to 9KHz, has four radio frequency test functions of vector signal generation, vector signal analysis, vector network analysis and vector transceiver, and realizes the multifunctional and multi-scene application capability of the comprehensive test instrument.

The invention provides a laser radar, a detection method thereof and a transmitting and receiving device, and the transmitting and receiving device comprises a light splitting modulation unit which carries out the light splitting modulation of original light, so as to form a detection light signal group and a local oscillation light signal group; the coherent unit is suitable for receiving and coupling the echo optical signal group and the local oscillation optical signal group to form a coherent optical signal group, and the coherent optical signal group comprises a plurality of coherent optical signals in time division. Different coherent optical signals in the coherent optical signal group have preset time delay, so that in the process of processing the coherent optical signal group, interference signals can be further eliminated by using the preset time delay, thereby achieving the purpose of improving the anti-interference capability, especially the anti-interference capability in a microwave frequency band, of the laser radar formed by the laser radar, and improving the anti-interference capability of the laser radar in the microwave frequency band. Full-spectrum anti-interference of the frequency-modulated continuous wave laser radar can be realized, and popularization of the frequency-modulated continuous wave laser radar can be further promoted.

A method of manufacturing a current collector of an energy storage device includes the following. A substrate is provided. A modified layer is formed on the substrate using a microwave plasma chemical vapor deposition process. The modified layer includes nanographene and has a thickness of 1 nm to 500 nm. In the microwave plasma chemical vapor deposition process, a microwave frequency is 300 MHz to 300 GHz, a microwave power is 500 W to 75000 W, a temperature is 25° C. to 600° C., and a deposition time is less than 30 minutes. The microwave plasma chemical vapor deposition process includes the following. Inert gas or stable gas is passed in. Hydrocarbon gas and hydrogen are passed in. Microwaves are applied to generate plasma. The hydrocarbon gas and the hydrogen are ionized. Nanographene is formed on the substrate.

The invention belongs to the technical field of radio frequency electromagnetic field measurement, and particularly discloses a quantum field intensity measurement method and system regulated and controlled by an offset electric field, and the method comprises the steps: selecting a Rydberg atomic energy level close to resonance according to the microwave frequency of a measured signal; according to the energy level of the Rydberg atom, determining the wavelength of coupled light and preparing the Rydberg atom, meanwhile, obtaining the difference value between the microwave frequency and the resonance transition frequency of the measured signal, and obtaining the energy level offset according to the difference value; acquiring the polarizability of the Rydberg atomic energy level, and acquiring a to-be-applied offset electric field value according to the energy level offset and the polarizability; according to the offset electric field value, an offset electric field is started, so that the related energy level of the Rydberg atoms moves in the offset electric field, when the energy difference between the offset Rydberg energy level and the adjacent energy level resonates with the microwave frequency of the measured signal, the offset sub-energy level forms energy level splitting and generates frequency splitting, and the frequency splitting is generated; and the electric field of the measured signal is measured according to the interval between the frequency splitting.

The invention discloses a resonant frequency tracking control method and system for a diamond nitrogen vacancy color center, and belongs to the technical field of quantum sensing. The method comprises the following steps: setting an initial center frequency output by a microwave source; in the tracking control process, fluorescence signal changes generated by the diamond nitrogen vacancy color center under the microwave frequency modulation effect are recorded, a full-amplitude demodulation amplitude value R is obtained through demodulation, and whether the full-amplitude demodulation amplitude value R is smaller than a dead zone threshold value or not is judged; if yes, the center frequency output by the microwave source is not changed; if not, calculating the microwave frequency regulation quantity delta f according to the full-amplitude demodulation amplitude R; determining the adjusting direction of the center frequency f0 of the microwave source according to the phase-frequency characteristic and the real-time demodulation phase difference delta phi in the current frequency tracking control process; according to the microwave frequency adjusting quantity delta f and the adjusting direction, the center frequency of the microwave source is adjusted for resonant frequency tracking; wherein the phase-frequency characteristic is the characteristic of the demodulation spectral line on the two sides of the resonant frequency. The robustness and the accuracy of the resonance frequency tracking method are enhanced.

The invention relates to the technical field of defect detection, in particular to a defect detection method and system based on a microwave frequency crystal resonator, and the method comprises the steps: forming a microwave probe through a microwave frequency crystal resonator array, placing a to-be-detected material below the microwave probe, and setting a scanning area and scanning step lengths in two directions on the surface of the material; controlling the probe to perform point-by-point scanning according to step length, and collecting a plurality of reflection coefficients of each sampling point to form an echo signal matrix; performing singular value decomposition on the matrix, applying an adjustable coefficient to a first singular value and a second singular value, and adaptively selecting an optimal coefficient according to imaging quality to reconstruct an echo signal; performing two-dimensional Fourier transform on the reconstructed matrix, constructing a spatial filter in combination with probe spacing and defect depth to perform phase compensation, performing two-dimensional Fourier transform to obtain a defect image, and performing threshold segmentation on the defect image to obtain a binary image only containing defects; and analyzing the connected regions to obtain the gravity center position of each defect and the defect area determined by the pixel number and the single pixel area. The problems of serious clutter interference, insufficient defect imaging contrast ratio, difficulty in quantitative evaluation of defect size and the like in the existing microwave detection can be solved.

The invention provides a method for remote sensing detection of a Jinstar intermediate layer atmosphere horizontal wind field profile by using a microwave limb radiometer, and the method comprises the steps: designing a detection channel of the Jinstar intermediate layer atmosphere horizontal wind field profile based on the characteristics of a Jinstar gas spectral line, obtaining radiation brightness temperature observation values of the detection channel at different tangent heights in two orthogonal directions through a microwave limb radiometer carried by a star orbiter; the characteristics of the golden star gas spectral lines are as follows: in a microwave frequency band, the golden star atmospheric trace gas spectral lines are rich and have obvious absorption peaks, and the high-speed atmospheric motion of the middle layer enables the gas absorption spectral lines to generate obvious Doppler frequency shift; and through physical iteration inversion, inversion is carried out based on the radiation brightness temperature observation value to obtain a golden star intermediate layer atmosphere horizontal wind field profile. The method has the advantages that back scattering and other intermediate processes are not needed, the method is basically not affected by ground surface high-temperature radiation, and continuous, stable, high-temporal-spatial-resolution and high-precision star intermediate layer atmosphere horizontal wind field profile information can be obtained all day long.

A diamond magneto-optical sensor includes: a diamond that includes a color center with an electronic spin and is irradiated with excitation light, and an irradiation unit that irradiates the diamond with the excitation light of the color center and electromagnetic waves for magnetic resonance, wherein the irradiation unit receives modulated light having been subjected to amplitude modulation, and a modulation frequency of the modulated light is included in a microwave frequency band.