CN109345901A - A kind of vital sign simulator and analogy method for rescue training - Google Patents
A kind of vital sign simulator and analogy method for rescue training Download PDFInfo
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- CN109345901A CN109345901A CN201811536801.4A CN201811536801A CN109345901A CN 109345901 A CN109345901 A CN 109345901A CN 201811536801 A CN201811536801 A CN 201811536801A CN 109345901 A CN109345901 A CN 109345901A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/006—Simulators for teaching or training purposes for locating or ranging of objects
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Abstract
The present invention discloses a kind of vital sign simulator and analogy method for rescue training, the radar cross section of corresponding radar cross section size simulates piece when detecting human body target including shell and for guinea pig, radar cross section simulates piece fixed and arranged in shell, is swung by radar cross section simulation piece according to designated magnitude, frequency to simulate the vital sign state of human body；Radar cross section simulates the area of piece, amplitude of fluctuation, hunting frequency when the analogy method is by predefining simulation different human body type；When carrying out rescue training, vital sign simulator is arranged in specified location, and radar cross section simulation piece is swung according to purpose amplitude of fluctuation, purpose hunting frequency.The present invention has the advantages that simple and compact for structure, at low cost, bulking value is small, and the rescue training that can be suitable for being directed to radar life-detection instrument equipment realizes vital sign simulation, and simulation precision is high.
Description
Technical field
The present invention relates to rescue training technical field more particularly to a kind of vital sign simulators for rescue training
And analogy method.
Background technique
Earthquake is caved in after the generation of the disasters such as mud-rock flow, and it is in the urgent need to address that how survivor is succoured in fast search positioning
The problem of, various regions also strengthen the outfit for searching and rescuing equipment equipment and rescue training comprehensively at present.The mesh in rescue search process
Before usually use radar life-detection instrument, radar life-detection instrument is a kind of fusion Radar Technology and biomedical engineering skill
The vital sign target-seeking device of art, can penetrate that nonmetal medium (brick wall, ruins etc.) is non-contact, detects human body at a distance
Vital sign (such as breathing, heartbeat, body are dynamic), and radar life-detection instrument to measured object without any constraint, can be every one
Set a distance penetrates certain medium (such as brick wall, ruins) and knows in a non contact fashion, to the human body target for having vital sign
It does not detect, thus is widely used in the fields gesture such as disaster buried person person search and rescue, the monitoring of struggle against terror mid-board and battle reconnaissance.But
It is that operating with for radar life-detection instrument needs to have certain professional knowledge, thus to guarantee effectively to play in rescue operations
The effect of radar life-detection instrument, daily simulated training are essential links.
It is current usually directly to serve as trapped person using true man for rescue training, there is low efficiency, scenes simply,
Training numerous drawbacks such as single and safety is poor.Though radar life-detection instrument equipment manufacturer has product export to examine equipment,
Usual equipment volume is larger, there is that search and rescue training is inconvenient to use, signal Source Type is single (generally using mechanical), general
Property it is not strong, environmental resistance degree is not high and the service life is unreliable the problems such as, be not able to satisfy the demand of rescue simulated training.
The equipment that part can be realized vital sign simulation exists in the prior art, but is usually all to be applied to medicine to lead
Domain, as all kinds of medical aid equipment provide emulation signal, and the type and form of such signal are markedly different from rescue life
Detection instrument desired signal, and larger, the unsuitable ruins Xia Zang of the medical usual volume of vital sign analog machine takes, it can not mould
Quasi- different age group, the variation of gender and vital sign over time, are unable to satisfy the demand of the simulated training of rescue group.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
Kind is simple and compact for structure, at low cost, bulking value is small, can be suitable for the rescue training reality for radar life-detection instrument equipment
Existing vital sign simulation, and the high vital sign simulator and implementation method for rescue training of simulation precision simply,
The analogy method of different type human life feature can accurately be simulated.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of vital sign simulator for rescue training includes shell and detects human body mesh for guinea pig
The radar cross section of corresponding radar cross section size simulates piece when mark, and the radar cross section simulates piece fixed and arranged
In the shell, swung by radar cross section simulation piece according to designated magnitude, frequency to simulate the life of human body
Order sign state.
Further improvement as apparatus of the present invention: the radar cross section simulation piece is fixed on institute by a fixing axle
It states on the central axes of shell, the radar cross section simulation piece is swung around the central axes of the shell.
Further improvement as apparatus of the present invention: the central axes of the radar cross section simulation piece and the shell
Central axes are overlapped, i.e., so that radar cross section simulation piece is arranged symmetrically on the central axes of the shell.
Further improvement as apparatus of the present invention: radar cross section simulation piece be rectangle, circle, it is rectangular in appoint
The sheet metal of one kind of anticipating.
Further improvement as apparatus of the present invention: the shell is cylindric.
Further improvement as apparatus of the present invention: more than one handle is provided on the shell.
The present invention further provides a kind of analogy method using the above-mentioned vital sign simulator for rescue training,
Step includes:
S1. predefine the area of corresponding radar cross section simulation piece when simulation different type human body target,
Amplitude of fluctuation and hunting frequency；
S2. it will be arranged in the shell with the radar cross section of purpose area simulation piece, constitute the life entity
Simulator is levied, when carrying out rescue training, the vital sign simulator is arranged in specified location, and make the thunder
It is swung up to scattering section simulation piece according to target amplitude of fluctuation, target hunting frequency, type human body target needed for realizing
Simulation；
S3. the vital sign simulator is detected using radar.
As the further improvement of the method for the present invention, the step of step S1, includes:
S11. different type human body target is measured respectively using radar in designated environment, acquires and corresponds to not
The measuring signal of same type human body target is simultaneously counted, and the statistical nature of the measuring signal of corresponding all types of human body targets is calculated
Value, using each statistical characteristics as the Standard Eigenvalue of all types of human body targets of correspondence；
S12. arrange that the radar scattering of different area, different amplitudes of fluctuation and different hunting frequencies is cut in current environment
Face mould is intended piece and is simultaneously measured using radar, when the measuring signal acquired achieves the goal institute corresponding to type human body target
When stating Standard Eigenvalue, determine the area, amplitude of fluctuation and the hunting frequency that obtain radar cross section simulation piece to simulate mesh
Type human body target, until obtaining simulating the face of corresponding radar cross section simulation piece when all types of human body targets
Product, amplitude of fluctuation and hunting frequency.
As the further improvement of the method for the present invention, the statistical characteristics of the measuring signal is specially the letter of measuring signal
It makes an uproar and compares statistical value.
As the further improvement of the method for the present invention, make in the step S2 radar cross section simulation piece according to
It further include amplitude of fluctuation, pendulum so that radar cross section simulation piece when target amplitude of fluctuation, target hunting frequency are swung
Dynamic frequency changes according to preset linear function to simulate the human body target step of different pile things on durations；
Amplitude of fluctuation, the hunting frequency of the radar cross section simulation piece specifically change according to following linear function:
A=A0* (1-t/t0)；
F=F0* (1-t/t0)；
Wherein, A is real-time amplitude of fluctuation, and A0 is initial swing amplitude, and t is real-time duration, and t0 is test simulation total duration；
F is real-time hunting frequency, and F0 is initial swing frequency.
Compared with the prior art, the advantages of the present invention are as follows:
1, the present invention constitutes a set of vital sign simulator by simulating piece by shell, radar cross section, by thunder
Corresponding radar cross section size, realizes human life body when carrying out guinea pig detection human body target up to scattering section simulation piece
The simulation of sign simulates piece by adjusting radar cross section, can easily simulate the human body mesh of different type, different conditions
Mark, volume, the weight of a whole set of vital sign simulator are small, can be convenient for the radar life detecting devices applied to all kinds of complexity
In rescue training environment.
2, further by the way that radar cross section simulation piece to be fixed on the central axes of shell, radar scattering is cut the present invention
Face mould is intended piece and is swung around the central axes of shell, can make entire vital sign simulation dress based on the installation, swing mode
It sets with omni-directional, omni-directional detection may be implemented, anyway putting radar life-detection instrument can detect, so as to
To meet the simulation demand of various complicated rescue scenes, radar cross section simulation piece is symmetrically arranged in simulator
When on axis, a whole set of simulator can have symmetry within the scope of 360 °.
3, the present invention is further corresponding by the radar cross section simulation piece simulation different type human body target of different area
Radar cross section, different type human body mesh is simulated by the radar cross section simulation different amplitudes of fluctuation of piece, hunting frequency
Target breathing, palmic rate and intensity, so as to accurately simulate different type human body target, so that the vital sign of simulation
It is with uniformity with measured target state, effectively improve the accuracy of test data.
4, the present invention reuses difference further by first measuring and counting the statistical characteristics of different type human body target
The radar cross section simulation piece of state measures, and determines when reaching Standard Eigenvalue and obtains radar cross section simulation piece
Area, swing state can determine human body target and radar scattering based on statistical way to simulate corresponding types human body target
The corresponding relationship between piece is simulated in section, to guarantee the real simulation of different type human body target.
5, the present invention is further by making radar cross section simulate the amplitude of fluctuation of piece, hunting frequency according to preset
Linear function changes to simulate the human body target of different pile things on durations, makes it possible to achieve different pile things on duration human life features
Simulation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the present embodiment for the vital sign simulator of rescue training.
Fig. 2 is the implementation process schematic diagram that the present embodiment carries out rescue training simulation using vital sign simulator.
Fig. 3 is the implementation process signal that the present embodiment determines radar cross section simulation piece parameter based on statistical way
Figure.
Marginal data: 1, shell；2, radar cross section simulates piece；3, fixing axle；4, handle.
Specific embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
As shown in Figure 1, the present embodiment be used for rescue training vital sign simulator, including shell 1 and be used for mould
The radar cross section of corresponding radar cross section size simulates piece 2, radar cross section when quasi- radar detection human body target
2 fixed and arranged of piece is simulated in shell 1, is swung by radar cross section simulation piece 2 according to designated magnitude, frequency to simulate
The vital sign state of target body.
It is to judge life by detecting the intensity of reflection echo, frequency information when radar life-detection instrument detection operations
Sign state, the shrinkage expansion of human body target chest lung rule in breathing, heartbeat, different types of human body target correspondence obtain
Radar cross section size and frequency it is different, the present embodiment utilizes the above-mentioned working characteristics of radar, by being dissipated by shell 1, radar
Section simulation piece 2 is penetrated to constitute a set of vital sign simulator, piece 2 is simulated by radar cross section and detects people come guinea pig
Corresponding radar cross section size when body target, radar cross section simulation piece 2 swing to simulate human body respiration, heartbeat
Vital signs realizes the simulation of human body vital sign, by adjusting area, the swing state of radar cross section simulation piece 2, i.e.,
The human body target of different type, different conditions can be easily simulated, and volume, the weight of a whole set of vital sign simulator are small,
It can be convenient in the rescue training environment applied to the radar life detecting devices of all kinds of complexity.
In the present embodiment, radar cross section simulation piece 2 is fixed on the central axes of shell 1 by a fixing axle 3, radar
Scattering section simulation piece 2 is swung around the central axes of shell 1, and specific radar cross section simulation piece 2 is to set around central axes
Fixed frequency rotation, to achieve the effect that radar cross section simulation piece 2 is swung.Rescue environment locating for the human body target of search
Extremely complex, such as usually in the gap under ruins, and the shape and structure in gap is different under different ruins, and simulation is filled
The shape and structure according to gap under ruins is needed to determine placement location, direction when placement location is under ruins, i.e., at different location
Posture, the direction of simulator may be different.Radar life-detection instrument is to penetrate detection downwards on ruins surface layer when working,
The present embodiment by by radar cross section simulation piece 2 be fixed on the central axes of shell 1, radar cross section simulate piece 2 around
The central axes of shell 1 are swung, and entire vital sign simulator can be made to have omnidirectional based on the installation, swing mode
Property, radar life-detection instrument can be matched and realize omni-directional detection, i.e., anyway putting radar life-detection instrument can visit
It measures, can satisfy the simulation demand of various complicated rescue scenes.
In the present embodiment, the central axes of radar cross section simulation piece 2 are overlapped with the central axes of shell 1, i.e., dissipate radar
It penetrates section simulation piece 2 to be symmetrically arranged on the central axes of simulator, be revolved in conjunction with radar cross section simulation piece 2 around central axes
The mode turned simulates the information such as the frequency of human body vital sign, intensity, and a whole set of simulator all has symmetrical within the scope of 360 °
Property, it can be ensured that the omni-directional of simulator realizes 360 ° of range omnidirectional detections.
In the present embodiment, it is specially rectangular metal sheet that radar cross section, which simulates piece 2, can be to the thunder that should apply to linear polarization
Up to life-detection instrument, corresponding radar cross section is generated by the area simulation human body target of rectangular metal sheet, by rectangular metal
The breathing of the swing state simulation human body target of piece, heartbeat feature, the area S0 of rectangular metal sheet is according to required simulated person's body
Target is predefined and is obtained.The shape of radar cross section simulation piece 2 can be adjusted according to the polarization mode of radar life-detection instrument,
If radar is circular polarisation, then other shapes can possibly even be used using round or square metal piece according to actual needs
Simulation chip architecture, area needed for can greatly reducing simulation piece using the form of sheet metal is easy to implement a whole set of simulation dress
The miniaturization set, area, the swing state of radar cross section simulation piece 2 can be determined by required simulated person's body target.
In view of simulator is required to gap under the ruins for being placed in various different shape structures, shell in the present embodiment
Body 1 can guarantee that 360 ° of omni-directionals place demands specifically using cylindric, based on cylindrical-shaped structure, can be with further satisfaction omnidirectional
Property detection demand.
In view of structures such as ruins gaps, the present embodiment is further provided on shell 1 more than one graspable
Handle 4 can be convenient for taking-up, the placement operations of simulator by handle 4, specifically in the upper and lower ends of cylindrical shell
Respectively one oval ring handle of setting, convenient for placing the simulator in the gaps such as building ruins.
As shown in Fig. 2, the present embodiment utilizes the analogy method of the above-mentioned vital sign simulator for rescue training, step
Suddenly include:
S1. the area of corresponding radar cross section simulation piece 2, swing when simulation different type human body target are predefined
Amplitude and hunting frequency；
S2. it will be arranged in shell 1 with the radar cross section of purpose area simulation piece 2, constitute vital sign simulation
Vital sign simulator is arranged in specified location, and radar cross section is simulated when carrying out rescue training by device
Piece 2 is swung according to target amplitude of fluctuation, target hunting frequency, the simulation of type human body target needed for realizing；
S3. the vital sign simulator is detected using radar.
The present embodiment simulates different type human body by the above method, by the radar cross section simulation piece 2 of different area
The corresponding radar cross section RCS of target is simulated by different amplitude of fluctuation A, the hunting frequency F of radar cross section simulation piece 2
Breathing, palmic rate and the intensity of different type human body target, so as to accurately simulate different type human body target, so that
The vital sign of simulation and measured target state are with uniformity, effectively improve the accuracy of test data.
As shown in figure 3, including: the step of step S1 in the present embodiment
S11. different type human body target is measured respectively using radar in designated environment, acquires and corresponds to not
The measuring signal of same type human body target is simultaneously counted, and the statistical nature of the measuring signal of corresponding all types of human body targets is calculated
Value, using each statistical characteristics as the Standard Eigenvalue of all types of human body targets of correspondence；
S12. arrange that the radar scattering of different area, different amplitudes of fluctuation and different hunting frequencies is cut in current environment
Face mould is intended piece 2 and is measured using radar, when the measuring signal acquired achieves the goal corresponding to type human body target
When Standard Eigenvalue, determine the area, amplitude of fluctuation and the hunting frequency that obtain radar cross section simulation piece 2 to simulate purpose
Type human body target, until obtaining simulating the area of corresponding radar cross section simulation piece 2 when all types of human body targets, swinging
Amplitude and hunting frequency.
The present embodiment passes through the statistical characteristics for first measuring and counting different type human body target, reuses different conditions
Radar cross section simulation piece 2 measures, and determines when reaching Standard Eigenvalue and obtains the face of radar cross section simulation piece 2
Product, swing state can determine that human body target and radar scattering are cut to simulate corresponding types human body target based on statistical way
Face mould intends the corresponding relationship between piece 2, to guarantee the real simulation of different type human body target.
In the present embodiment, the statistical characteristics of measuring signal is specially the signal-to-noise ratio statistical value of measuring signal, i.e. step S12
In using the value consistency of Signal to Noise Ratio (SNR) as determine radar cross section simulation 2 state of piece judging basis, when what is acquired
Measuring signal achieves the goal after type needed by human body standard snr value, and corresponding is that the radar of the corresponding purpose type human body dissipates
Area, the amplitude of fluctuation, hunting frequency for penetrating section simulation piece 2, are based on signal-to-noise ratio statistical characteristics, are easy to extraction and extraction accuracy
Height can be further improved simulation precision, naturally it is also possible to according to actual needs using other such as sensitivity, signal echo intensity
Equal signal parameters.Signal-to-noise ratio statistical value can specifically take signal-to-noise ratio mean value, the mean value of the signal-to-noise ratio of as multiple human body targets, when
Other statistical values of signal-to-noise ratio, such as most value, variance, covariance can also be so used according to actual needs.
Different age group, different sexes personnel's sign are considered, especially by all ages and classes in the present embodiment step S11
Section, different sexes human body target measure, obtain the Standard Eigenvalue of corresponding different age group, different performance human body, step
Rapid S12 determines area, the pendulum of the corresponding radar cross section simulation piece 2 when obtaining simulation different age group, different sexes
Dynamic amplitude and hunting frequency, not by the area of different radar cross section simulation piece 2, amplitude of fluctuation and hunting frequency characterization
Human heartbeat's breathing vital sign of same age bracket, different sexes, so as to realize the human body of different age group, different sexes
Targeted vital characteristic simulation.
Human body breathing, heartbeat etc. during pile things on can be in the variation tendency gradually decreased, make in the present embodiment step S2
Radar cross section simulation piece 2 when being swung according to target amplitude of fluctuation, target hunting frequency, further include so that radar dissipates
Penetrate the amplitude of fluctuation of section simulation piece 2, hunting frequency changes according to preset linear function to simulate the people of different pile things on durations
Body target step makes it possible to achieve the simulation of different pile things on duration human life features.
In the present embodiment, radar cross section simulates the amplitude of fluctuation of piece 2, hunting frequency specifically according to following linear function
Variation:
A=A0* (1-t/t0) (1)
F=F0* (1-t/t0) (2)
Wherein, A is real-time amplitude of fluctuation, and A0 is initial swing amplitude, and t is real-time duration, and t0 is test simulation total duration；
F is real-time hunting frequency, and F0 is initial swing frequency, and A0, F0 and t0 can be set according to specific requirements.
In concrete application embodiment, determined based on statistical way corresponding when simulating different age group, different sexes
Area, amplitude of fluctuation and the hunting frequency process of hot cross-section simulation piece 2 are as follows:
1) samples selection: selection 100 people of sample size, including 68 people of adult male, 32 people of adult female, age range are situated between
Between 20-48 one full year of life；
2) it is measured based on statistical way
1. measured in microwave dark room, using the signal-to-noise ratio (SNR) of data processing as judgment basis, test it is all at
The mean value for the signal-to-noise ratio (SNR) that year male obtains and standard SNR1 value as adult male, test all adult females and obtain
Signal-to-noise ratio (SNR) mean value and standard SNR2 value as adult female, then the standard SNR value SNR0 of adult is calculated
=(SNR1+SNR2)/2；
2. measuring using SNR0 value as standard referring to simulation piece, when reaching corresponding SNR value, determine that simulation is unilateral
Parameter S0, A0, F0 are the standard parameter that piece is simulated when simulating adult by product S0, amplitude of fluctuation A0, hunting frequency F0；
3. being measured using SNR1 value as adult male standard referring to simulation piece, when reaching corresponding SNR value, determine
Piece amplitude of fluctuation A1, hunting frequency F1 are simulated, is the standard parameter for simulating piece when simulating adult male by parameter S0, A1, F1, together
Reason can determine standard parameter S0, A2, F2 of the simulation piece of simulation adult female；
4. using it is above-mentioned 1.~3. same principle, can also further obtain identical sheet metal area S0, different pendulum
Dynamic amplitude, hunting frequency carry out the standard vital signs parameter of corresponding children, the elderly, so as to realize adult male, female
Property, old man and children vital sign simulation.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (10)
1. a kind of vital sign simulator for rescue training, it is characterised in that: including shell (1) and for simulating thunder
Radar cross section up to radar cross section size corresponding when detecting human body target simulates piece (2), and the radar scattering is cut
Face mould intends piece (2) fixed and arranged in the shell (1), by radar cross section simulation piece (2) according to designated magnitude, frequency
Rate is swung to simulate the vital sign state of human body.
2. the vital sign simulator according to claim 1 for rescue training, which is characterized in that the radar dissipates
It penetrates section simulation piece (2) to be fixed on the central axes of the shell (1) by a fixing axle (3), the radar cross section mould
Quasi- piece (2) are swung around the central axes of the shell (1).
3. the vital sign simulator according to claim 2 for rescue training, which is characterized in that the radar dissipates
The central axes for penetrating section simulation piece (2) are overlapped with the central axes of the shell (1), i.e., so that the radar cross section simulates piece
(2) it is arranged symmetrically on the central axes of the shell (1).
4. the vital sign simulator according to claim 1 or 2 or 3 for rescue training, which is characterized in that described
Radar cross section simulate piece (2) be rectangle, circle, it is rectangular in any one sheet metal.
5. the vital sign simulator according to claim 1 or 2 or 3 for rescue training, which is characterized in that described
Shell (1) is cylindric.
6. the vital sign simulator according to claim 1 or 2 or 3 for rescue training, which is characterized in that described
More than one handle (4) are provided on shell (1).
7. a kind of mould using the vital sign simulator for being used for rescue training described in any one of claim 1~6
Quasi- method, which is characterized in that step includes:
S1. area, the pendulum of corresponding radar cross section simulation piece (2) when simulation different type human body target are predefined
Dynamic amplitude and hunting frequency；
S2. it will be arranged in the shell (1) with the radar cross section of purpose area simulation piece (2), constitute the life
The vital sign simulator is arranged in specified location when carrying out rescue training by sign simulator, and is made described
Radar cross section simulation piece (2) is swung according to target amplitude of fluctuation, target hunting frequency, type human body mesh needed for realizing
Target simulation；
S3. the vital sign simulator is detected using radar.
8. analogy method according to claim 7, which is characterized in that the step of step S1 includes:
S11. different type human body target is measured respectively using radar in designated environment, acquires corresponding inhomogeneity
The measuring signal of type human body target is simultaneously counted, and the statistical characteristics of the measuring signal of corresponding all types of human body targets is calculated,
Using each statistical characteristics as the Standard Eigenvalue of all types of human body targets of correspondence；
S12. arrange that the radar scattering of different area, different amplitudes of fluctuation and different hunting frequencies is cut in current environment
Face mould is intended piece (2) and is measured using radar, when the measuring signal acquired achieves the goal corresponding to type human body target
The Standard Eigenvalue when, determine the area for obtaining radar cross section simulation piece (2), amplitude of fluctuation and swing frequency
Rate is to simulate purpose type human body target, until obtaining simulating corresponding radar cross section mould when all types of human body targets
Area, amplitude of fluctuation and the hunting frequency of quasi- piece (2).
9. analogy method according to claim 8, which is characterized in that the statistical characteristics of the measuring signal is specially to survey
Measure the signal-to-noise ratio of signal, sensitivity, in signal echo intensity one or more parameters statistical value.
10. analogy method according to claim 8 or claim 9, which is characterized in that make the radar scattering in the step S2
It further include so that radar cross section mould when section simulation piece (2) is swung according to target amplitude of fluctuation, target hunting frequency
Amplitude of fluctuation, the hunting frequency of quasi- piece (2) change according to preset linear function to simulate the human body target of different pile things on durations
Step；
Amplitude of fluctuation, the hunting frequency of radar cross section simulation piece (2) specifically change according to following linear function:
A=A0* (1-t/t0)；
F=F0* (1-t/t0)；
Wherein, A is real-time amplitude of fluctuation, and A0 is initial swing amplitude, and t is real-time duration, and t0 is total test simulation duration；F is
Real-time hunting frequency, F0 are initial swing frequency.
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| US20170140673A1 (en) * | 2007-05-21 | 2017-05-18 | Johnson County Community College Foundation, Inc. | Medical device and procedure simulation and training |
| CN102289976A (en) * | 2011-09-08 | 2011-12-21 | 中国人民解放军第四军医大学 | Real-human simulating device for simulating heart beat of human body |
| CN102394023A (en) * | 2011-09-08 | 2012-03-28 | 中国人民解放军第四军医大学 | Simulation human device capable of simulating respiratory function of human body |
| CN103021247A (en) * | 2012-12-26 | 2013-04-03 | 中国科学技术大学 | Simulator capable of simulating breathing of human body |
| CN103076598A (en) * | 2012-12-31 | 2013-05-01 | 中国科学技术大学 | Experimental device used for researching influence of smoke on radar life detection signal |
| CN204931636U (en) * | 2015-08-31 | 2016-01-06 | 珠海市奥美软件科技有限公司 | Non-contact vital sign monitoring device and sleep management system |
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