CN117949910A - Non-contact Doppler radar simulation system - Google Patents
Non-contact Doppler radar simulation system Download PDFInfo
- Publication number
- CN117949910A CN117949910A CN202410215552.8A CN202410215552A CN117949910A CN 117949910 A CN117949910 A CN 117949910A CN 202410215552 A CN202410215552 A CN 202410215552A CN 117949910 A CN117949910 A CN 117949910A
- Authority
- CN
- China
- Prior art keywords
- conversion
- spectrum signal
- frequency
- signal
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004088 simulation Methods 0.000 title claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 122
- 239000011159 matrix material Substances 0.000 claims abstract description 57
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000001228 spectrum Methods 0.000 claims description 42
- 238000005070 sampling Methods 0.000 claims description 30
- 238000000295 emission spectrum Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 10
- 238000013461 design Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003062 neural network model Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention belongs to the technical field of Doppler radars, and provides a non-contact Doppler radar simulation system, which comprises: the system comprises an antenna coupler, a dynamic frequency conversion module, a processing module, a simulation model, a conversion module and a compensation module; in the up-conversion and down-conversion, the invention adopts a mode that a plurality of up-converters are connected in series or a plurality of down-converters are connected in series in the frequency conversion matrix, and adopts the same local oscillator design in the same frequency conversion matrix, thereby realizing signal phase correlation of the up-converter and the down-converter, increasing output power control at the radio frequency output end of the up-converter, being capable of simulating electromagnetic wave space transmission characteristics, realizing accurate control of radar echo power, and simultaneously obviously reducing radio frequency signal power consumption.
Description
Technical Field
The invention relates to the technical field of radar simulation, in particular to a non-contact Doppler radar simulation system.
Background
The Doppler radar is speed measurement equipment, has the characteristics of high speed measurement precision, stable error and difficult interference by external environment, and can be used for carrier speed measurement and aircraft navigation. Based on the working characteristics of the Doppler radar, in engineering practice and practical application processes, a plurality of factors influencing the working performance of the radar exist, including radar microwave source precision, tracker precision, topography and relief deviation, flight attitude, flight altitude and the like, so that the Doppler radar has very wide application.
In the previous research, test simulation equipment for verifying radar functional performance has been realized, the real working state of the radar is simulated through semi-physical simulation, corresponding simulation test cases are designed aiming at different error influence factors of the radar, error influence analysis is carried out according to simulation results, doppler radar test verification can be realized in each stage of radar design, verification and test, and the purpose of designing a non-contact Doppler radar simulation system is achieved. For example, publication No.: "CN109444833A" a non-contact Doppler radar simulation system, including antenna coupler, up-down conversion unit, signal processing unit and comprehensive display control unit: the up-down conversion unit is respectively connected with the antenna coupler and the signal processing unit in a two-way and is used for down-converting the radar emission signals acquired by the antenna coupler into intermediate frequency signals, sending the intermediate frequency signals to the signal processing unit, receiving the intermediate frequency signals from the signal processing unit, up-converting the intermediate frequency signals into radio frequency signals, sending the radio frequency signals to the antenna coupler and feeding the radio frequency signals back to the Doppler radar; the integrated display control unit is used for generating simulation parameters and control information according to simulation and test requirements, and transmitting the simulation parameters and the control information to the antenna coupler, the upper line frequency conversion unit and the signal processing unit respectively to realize control and monitoring of a simulation system.
In the above-mentioned publication, up-conversion is exemplified by up-conversion using a combination of an up-converter and a program-controlled attenuator, and in general, at least two frequency conversions are required to meet the set requirement, but when the combination of the up-converter and the program-controlled attenuator is adopted, the frequency conversion accuracy is relatively coarse, precise control cannot be realized, and when radio frequency signal processing is performed, radio frequency signal power consumption exists.
Disclosure of Invention
Accordingly, the present invention is directed to a non-contact Doppler radar simulation system.
The invention adopts the following technical scheme:
A non-contact doppler radar simulation system comprising:
The antenna coupler is used for receiving radio frequency signals transmitted by the Doppler radar;
The dynamic frequency conversion module is connected with the antenna coupler and is used for executing a first closed loop according to a first preset rule according to a first estimation of a reference frequency required by digital sampling during signal processing so as to perform frequency conversion processing on a radio frequency signal to obtain a first reference frequency spectrum signal;
The processing module is connected with the dynamic frequency conversion module and the antenna coupler and is used for digitally sampling the reference frequency spectrum signal to obtain a sampling signal, and executing a second closed loop according to a second preset rule by the sampling signal according to second estimation of the reference frequency required by simulation so as to perform frequency conversion processing on the first reference frequency spectrum signal to generate a second reference frequency spectrum signal meeting the simulation requirement;
the simulation model is connected with the processing module and is used for carrying out digital modulation according to the second reference frequency spectrum signal to generate a modulation frequency spectrum signal;
The conversion module is connected with the simulation model and the dynamic frequency conversion module and is used for carrying out frequency conversion processing on the modulated spectrum signal through the dynamic frequency conversion module according to a third set rule after DA conversion to obtain a pre-emission spectrum signal;
The compensation module is connected with the conversion module and is used for carrying out power compensation on the pre-emission spectrum signal according to fourth estimation of power consumption generated by the pre-emission spectrum signal in the process that the pre-emission spectrum signal is transmitted to the Doppler radar by the antenna coupler from the simulation model to the antenna coupler, so as to obtain the pre-emission radio frequency signal;
And sending the obtained pre-transmitted radio frequency signal to the Doppler radar from the antenna coupler.
Further, the dynamic frequency conversion module includes:
A first variable frequency matrix;
a logic control unit;
A first predictive model;
A first closed loop;
the first storage unit is used for storing a first setting rule and a second setting rule;
The antenna coupler sends radio frequency signals to the first estimation model, forms first estimation based on the radio frequency signals according to reference frequencies required by digital sampling during signal processing, and sends the first estimation to the logic control unit;
the logic control unit loads a first setting rule in the first storage unit through the first prediction, and controls a plurality of frequency conversion units in the first frequency conversion matrix to be combined through executing a first closed loop to complete up-conversion of a plurality of set increments so as to achieve a reference frequency required by digital sampling, so that a first reference frequency spectrum signal is obtained.
Further, the first frequency conversion matrix includes:
a first matrix combination consisting of a plurality of downconverters;
a second matrix combination consisting of a plurality of up-converters;
a first configuration unit configured in the first matrix combination for setting a reference frequency coefficient of the down-converter;
a second configuration unit configured in the second matrix combination for setting up-converter reference frequency coefficients;
the first configuration logic execution unit is connected with the logic control unit and the first configuration unit and the second configuration unit and is used for setting the reference frequency coefficient of the down converter or the up converter.
Further, in the first matrix combination, a plurality of down converters are connected in series, and down conversion switches are respectively arranged between the down converters;
In the second matrix combination, a plurality of up-converters are connected in series, and up-conversion switches are respectively arranged between the down-converters.
Further, the processing module includes:
a first in-linking unit;
A second closed loop;
the sampling unit is used for digitally sampling the reference spectrum signal to obtain a sampling signal;
The second estimation model is used for carrying out second estimation on the sampling signal according to the reference frequency required by simulation;
The processing unit is connected to the dynamic frequency conversion module through the first in-link unit, loads a first frequency conversion matrix arranged in the dynamic frequency conversion module and a second setting rule arranged in the first storage unit, and executes a second closed loop to perform frequency conversion processing on the first reference frequency spectrum signal, so as to generate a second reference frequency spectrum signal meeting simulation requirements.
Further, the conversion module includes:
A DA conversion unit;
A third closed loop;
A second storage unit; for storing a third setting rule;
A second frequency conversion matrix, which is a third matrix combination composed of a plurality of up-converters; the DA conversion unit is used for performing DA conversion on the modulation spectrum signal, and then performing third closed loop through a third set rule to perform frequency conversion on the modulation spectrum signal after DA conversion to obtain a pre-emission spectrum signal.
Further, the second frequency conversion matrix includes:
a third configuration unit configured in the third matrix combination for setting a reference frequency coefficient of the down-converter;
And the second configuration logic execution unit is used for setting the reference frequency coefficient of the down converter or the up converter.
Further, in the third matrix combination, a plurality of up-converters are connected in series, and up-conversion switches are respectively arranged between the up-converters.
Further, the compensation module has:
the third pre-estimation model is used for predicting the power consumption generated by the pre-emission spectrum signal in the process that the pre-emission spectrum signal is transmitted to the Doppler radar by the antenna coupler from the simulation model to the antenna coupler to obtain a fourth pre-estimation;
The compensation unit is used for carrying out power compensation on the pre-emission frequency spectrum signal by the fourth estimation to obtain a pre-emission radio frequency signal;
And sending the obtained pre-transmitted radio frequency signal to the Doppler radar from the antenna coupler.
Further, a mixer is provided in the compensation unit, and the pre-emission spectrum signal is subjected to power compensation by the mixer through the fourth estimation.
In the application, whether up-conversion or down-conversion is carried out, a plurality of up-converters are adopted for combination or a plurality of down-converters are adopted for combination, and reference coefficients of the up-converters and the down-converters can be corrected, thereby achieving the purpose of accurate control.
The frequency conversion matrix adopts a mode that a plurality of up-converters are connected in series or a plurality of down-converters are connected in series, and the same local oscillator design is adopted in the same frequency conversion matrix, so that signal phase correlation of the up-converter and the down-converter is realized, the output power control is increased at the radio frequency output end of the up-converter, the electromagnetic wave space transmission characteristic can be simulated, and the accurate control of radar echo power is realized.
Drawings
The following drawings are illustrative of the invention and are not intended to limit the scope of the invention, in which:
fig. 1 is a schematic diagram of a system framework of the present invention.
Fig. 2 is a schematic diagram of a dynamic frequency conversion module according to the present invention.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples, which are given by way of illustration, in order to make the objects, technical solutions, design methods and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides a non-contact doppler radar simulation system, comprising:
The antenna coupler is used for receiving radio frequency signals transmitted by the Doppler radar;
The dynamic frequency conversion module is connected with the antenna coupler and is used for executing a first closed loop according to a first preset rule according to a first estimation of a reference frequency required by digital sampling during signal processing so as to perform frequency conversion processing on a radio frequency signal to obtain a first reference frequency spectrum signal;
The processing module is connected with the dynamic frequency conversion module and the antenna coupler and is used for digitally sampling the reference frequency spectrum signal to obtain a sampling signal, and executing a second closed loop according to a second preset rule by the sampling signal according to second estimation of the reference frequency required by simulation so as to perform frequency conversion processing on the first reference frequency spectrum signal to generate a second reference frequency spectrum signal meeting the simulation requirement;
the simulation model is connected with the processing module and is used for carrying out digital modulation according to the second reference frequency spectrum signal to generate a modulation frequency spectrum signal;
The conversion module is connected with the simulation model and the dynamic frequency conversion module and is used for carrying out frequency conversion processing on the modulated spectrum signal through the dynamic frequency conversion module according to a third set rule after DA conversion to obtain a pre-emission spectrum signal;
The compensation module is connected with the conversion module and is used for carrying out power compensation on the pre-emission spectrum signal according to fourth estimation of power consumption generated by the pre-emission spectrum signal in the process that the pre-emission spectrum signal is transmitted to the Doppler radar by the antenna coupler from the simulation model to the antenna coupler, so as to obtain the pre-emission radio frequency signal;
And sending the obtained pre-transmitted radio frequency signal to the Doppler radar from the antenna coupler.
In the above, the dynamic frequency conversion module includes:
A first variable frequency matrix;
a logic control unit;
A first predictive model;
A first closed loop;
the first storage unit is used for storing a first setting rule and a second setting rule;
The antenna coupler sends radio frequency signals to the first estimation model, forms first estimation based on the radio frequency signals according to reference frequencies required by digital sampling during signal processing, and sends the first estimation to the logic control unit;
the logic control unit loads a first setting rule in the first storage unit through the first prediction, and controls a plurality of frequency conversion units in the first frequency conversion matrix to be combined through executing a first closed loop to complete up-conversion of a plurality of set increments so as to achieve a reference frequency required by digital sampling, so that a first reference frequency spectrum signal is obtained.
In the foregoing, the first frequency conversion matrix includes:
a first matrix combination consisting of a plurality of downconverters;
a second matrix combination consisting of a plurality of up-converters;
a first configuration unit configured in the first matrix combination for setting a reference frequency coefficient of the down-converter;
a second configuration unit configured in the second matrix combination for setting up-converter reference frequency coefficients;
the first configuration logic execution unit is connected with the logic control unit and the first configuration unit and the second configuration unit and is used for setting the reference frequency coefficient of the down converter or the up converter.
In the above, the first configuration unit has a plurality of first configuration areas, the first configuration areas correspond to each down converter, and the first configuration areas are used for writing and storing reference frequency coefficients of the down converters;
The second configuration unit is provided with a plurality of second configuration areas, the second configuration areas correspond to each up-converter, and the second configuration areas are used for writing and storing the reference frequency coefficients of the up-converters.
In the above, the first configuration area has:
A first attribute setting block;
a first read-write configuration block; and
The first attribute setting block is used for setting the read-write permission of the first read-write configuration block, and the first read-write configuration block is connected with the first storage block and used for reading the reference frequency coefficient of the down-converter stored in the first storage block under the set read permission or changing the reference frequency coefficient of the down-converter stored in the first storage block under the set write permission.
In the above, the second configuration area has:
A second attribute setting block;
A second read-write configuration block; and
The second attribute setting block is used for setting the read and write permission of the second read and write configuration block, and the second read and write configuration block is connected with the second storage block and is used for reading the up-converter reference frequency coefficient stored in the second storage block under the set read permission or changing the up-converter reference frequency coefficient stored in the second storage block under the set write permission.
In the above, since the first configuration area provided by the present application can set the reference frequency coefficient of the down-converter, that is, by defining the reference value of one down-converter in the frequency conversion process, each frequency conversion can only be increased according to the set reference value. Therefore, the aim of accurately controlling the down-conversion can be achieved by changing the reference value. Similarly, the reference frequency coefficient of the up-converter can be set in the second configuration area provided by the application, that is, by limiting the reference value of one up-converter in the frequency conversion process, the reference value can be reduced only according to the set reference value in each frequency conversion. Therefore, the aim of accurately controlling the up-conversion can be achieved by changing the reference value.
In the above, in the first matrix combination, the plurality of down converters are connected in series, and down conversion switches are respectively arranged between the down converters;
In the second matrix combination, a plurality of up-converters are connected in series, and up-conversion switches are respectively arranged between the down-converters.
In the above, in the down-conversion, several down-converters are connected in series, and the judgment and control are performed according to the practical application. Up-conversion is the same.
In the above, the frequency conversion matrix adopts a mode that a plurality of up-converters are connected in series or a plurality of down-converters are connected in series, and the same local oscillator design is adopted in the same frequency conversion matrix, so that signal phase correlation of the up-converter and the down-converter is realized, the output power control is increased at the radio frequency output end of the up-converter, the electromagnetic wave space transmission characteristic can be simulated, and the accurate control of radar echo power is realized.
In the foregoing, the first setting rule is a first combination rule of setting the down-converter in the first matrix combination according to the first prediction and the reference frequency coefficient of the down-converter.
In the foregoing, the first closed loop is configured to control the closing of the down-conversion switch according to a first combination rule to form a first matrix combination.
In the above, the processing module includes:
a first in-linking unit;
A second closed loop;
the sampling unit is used for digitally sampling the reference spectrum signal to obtain a sampling signal;
The second estimation model is used for carrying out second estimation on the sampling signal according to the reference frequency required by simulation;
The processing unit is connected to the dynamic frequency conversion module through the first in-link unit, loads a first frequency conversion matrix arranged in the dynamic frequency conversion module and a second setting rule arranged in the first storage unit, and executes a second closed loop to perform frequency conversion processing on the first reference frequency spectrum signal, so as to generate a second reference frequency spectrum signal meeting simulation requirements.
In the foregoing, the second setting rule is a second combination rule for setting up-converter in the second matrix combination according to the second prediction and the up-converter reference frequency coefficient.
In the foregoing, the second closed loop is configured to control the closing of the up-conversion switch according to a second combination rule to form a second matrix combination.
In the above, the conversion module includes:
A DA conversion unit;
A third closed loop;
A second storage unit; for storing a third setting rule;
A second frequency conversion matrix, which is a third matrix combination composed of a plurality of up-converters; the DA conversion unit is used for performing DA conversion on the modulation spectrum signal, and then performing third closed loop through a third set rule to perform frequency conversion on the modulation spectrum signal after DA conversion to obtain a pre-emission spectrum signal.
In the foregoing, the second frequency conversion matrix includes:
a third configuration unit configured in the third matrix combination for setting a reference frequency coefficient of the down-converter;
And the second configuration logic execution unit is used for setting the reference frequency coefficient of the down converter or the up converter.
In the above, the third configuration unit has a plurality of third configuration areas, the third configuration areas correspond to each up-converter, and the third configuration areas are used for writing and storing the reference frequency coefficients of the up-converters.
In the above, the third configuration area has:
A third attribute setting block;
a third read-write configuration block; and
The third attribute setting block is used for setting the read-write permission of a third read-write configuration block, and the third read-write configuration block is connected with the third storage block and is used for reading the up-converter reference frequency coefficient stored in the third storage block under the set read permission or changing the up-converter reference frequency coefficient stored in the third storage block under the set write permission.
In the third matrix combination, the plurality of up-converters are connected in series, and up-conversion switches are respectively arranged between the up-converters.
In the above, the third setting rule is a third combination rule for setting an up-converter in a third matrix combination according to a reference range set by the pre-emission spectrum signal and the up-converter reference frequency coefficient.
In the foregoing, the third closed loop is configured to control the closing of the up-conversion switch according to a third combination rule to form a third matrix combination.
In the above, the compensation module has:
the third pre-estimation model is used for predicting the power consumption generated by the pre-emission spectrum signal in the process that the pre-emission spectrum signal is transmitted to the Doppler radar by the antenna coupler from the simulation model to the antenna coupler to obtain a fourth pre-estimation;
The compensation unit is used for carrying out power compensation on the pre-emission frequency spectrum signal by the fourth estimation to obtain a pre-emission radio frequency signal;
And sending the obtained pre-transmitted radio frequency signal to the Doppler radar from the antenna coupler.
In the foregoing, the compensation unit is provided with a mixer, and the power compensation is performed on the pre-emission spectrum signal by the mixer with the fourth estimation.
It should be noted that, because the frequency of the radio frequency signal received by the dop Lei Leida is not stable and unchanged, but has frequency fluctuation according to the actual practical working condition, and the fluctuation amplitude is large under some interference environments, the application adopts the dynamic frequency conversion module, and can accurately control the radio frequency signal according to the frequency of the radio frequency signal actually received, so as to reach the set reference frequency.
It should be noted that, various models adopted in the application, especially the pre-estimated model, and different pre-estimated models are all obtained by adopting the same technical means, namely, by obtaining the historical data, marking the historical data and carrying out iterative training by using an iterative tool, wherein the iterative tool can be a neural network model. The present application is not limited thereto as long as the same purpose can be achieved.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A non-contact doppler radar simulation system, comprising:
The antenna coupler is used for receiving radio frequency signals transmitted by the Doppler radar;
The dynamic frequency conversion module is connected with the antenna coupler and is used for executing a first closed loop according to a first preset rule according to a first estimation of a reference frequency required by digital sampling during signal processing so as to perform frequency conversion processing on a radio frequency signal to obtain a first reference frequency spectrum signal;
The processing module is connected with the dynamic frequency conversion module and the antenna coupler and is used for digitally sampling the reference frequency spectrum signal to obtain a sampling signal, and executing a second closed loop according to a second preset rule by the sampling signal according to second estimation of the reference frequency required by simulation so as to perform frequency conversion processing on the first reference frequency spectrum signal to generate a second reference frequency spectrum signal meeting the simulation requirement;
the simulation model is connected with the processing module and is used for carrying out digital modulation according to the second reference frequency spectrum signal to generate a modulation frequency spectrum signal;
The conversion module is connected with the simulation model and the dynamic frequency conversion module and is used for carrying out frequency conversion processing on the modulated spectrum signal through the dynamic frequency conversion module according to a third set rule after DA conversion to obtain a pre-emission spectrum signal;
The compensation module is connected with the conversion module and is used for carrying out power compensation on the pre-emission spectrum signal according to fourth estimation of power consumption generated by the pre-emission spectrum signal in the process that the pre-emission spectrum signal is transmitted to the Doppler radar by the antenna coupler from the simulation model to the antenna coupler, so as to obtain the pre-emission radio frequency signal;
And sending the obtained pre-transmitted radio frequency signal to the Doppler radar from the antenna coupler.
2. The non-contact doppler radar simulation system of claim 1, wherein the dynamic frequency conversion module comprises:
A first variable frequency matrix;
a logic control unit;
A first predictive model;
A first closed loop;
the first storage unit is used for storing a first setting rule and a second setting rule;
The antenna coupler sends radio frequency signals to the first estimation model, forms first estimation based on the radio frequency signals according to reference frequencies required by digital sampling during signal processing, and sends the first estimation to the logic control unit;
the logic control unit loads a first setting rule in the first storage unit through the first prediction, and controls a plurality of frequency conversion units in the first frequency conversion matrix to be combined through executing a first closed loop to complete up-conversion of a plurality of set increments so as to achieve a reference frequency required by digital sampling, so that a first reference frequency spectrum signal is obtained.
3. The non-contact doppler radar simulation system of claim 2, wherein the first frequency conversion matrix comprises:
a first matrix combination consisting of a plurality of downconverters;
a second matrix combination consisting of a plurality of up-converters;
a first configuration unit configured in the first matrix combination for setting a reference frequency coefficient of the down-converter;
a second configuration unit configured in the second matrix combination for setting up-converter reference frequency coefficients;
the first configuration logic execution unit is connected with the logic control unit and the first configuration unit and the second configuration unit and is used for setting the reference frequency coefficient of the down converter or the up converter.
4. The non-contact Doppler radar simulation system of claim 3, wherein,
In the first matrix combination, a plurality of down converters are connected in series, and down conversion switches are respectively arranged among the down converters;
In the second matrix combination, a plurality of up-converters are connected in series, and up-conversion switches are respectively arranged between the down-converters.
5. The non-contact doppler radar simulation system of claim 1, wherein the processing module comprises:
a first in-linking unit;
A second closed loop;
the sampling unit is used for digitally sampling the reference spectrum signal to obtain a sampling signal;
The second estimation model is used for carrying out second estimation on the sampling signal according to the reference frequency required by simulation;
The processing unit is connected to the dynamic frequency conversion module through the first in-link unit, loads a first frequency conversion matrix arranged in the dynamic frequency conversion module and a second setting rule arranged in the first storage unit, and executes a second closed loop to perform frequency conversion processing on the first reference frequency spectrum signal, so as to generate a second reference frequency spectrum signal meeting simulation requirements.
6. The non-contact doppler radar simulation system of claim 1, wherein the conversion module comprises:
A DA conversion unit;
A third closed loop;
A second storage unit; for storing a third setting rule;
A second frequency conversion matrix, which is a third matrix combination composed of a plurality of up-converters; the DA conversion unit is used for performing DA conversion on the modulation spectrum signal, and then performing third closed loop through a third set rule to perform frequency conversion on the modulation spectrum signal after DA conversion to obtain a pre-emission spectrum signal.
7. The non-contact doppler radar simulation system of claim 6, wherein the second frequency conversion matrix comprises:
a third configuration unit configured in the third matrix combination for setting a reference frequency coefficient of the down-converter;
And the second configuration logic execution unit is used for setting the reference frequency coefficient of the down converter or the up converter.
8. The system of claim 6, wherein in the third matrix combination, a plurality of up-converters are connected in series, and up-conversion switches are respectively disposed between the up-converters.
9. The non-contact doppler radar simulation system of claim 1, wherein the compensation module has:
the third pre-estimation model is used for predicting the power consumption generated by the pre-emission spectrum signal in the process that the pre-emission spectrum signal is transmitted to the Doppler radar by the antenna coupler from the simulation model to the antenna coupler to obtain a fourth pre-estimation;
The compensation unit is used for carrying out power compensation on the pre-emission frequency spectrum signal by the fourth estimation to obtain a pre-emission radio frequency signal;
And sending the obtained pre-transmitted radio frequency signal to the Doppler radar from the antenna coupler.
10. The non-contact doppler radar simulation system according to claim 9, wherein a mixer is provided in the compensation unit, and the pre-emission spectrum signal is power-compensated by the mixer with the fourth estimation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410215552.8A CN117949910A (en) | 2024-02-27 | 2024-02-27 | Non-contact Doppler radar simulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410215552.8A CN117949910A (en) | 2024-02-27 | 2024-02-27 | Non-contact Doppler radar simulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117949910A true CN117949910A (en) | 2024-04-30 |
Family
ID=90801512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410215552.8A Pending CN117949910A (en) | 2024-02-27 | 2024-02-27 | Non-contact Doppler radar simulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117949910A (en) |
-
2024
- 2024-02-27 CN CN202410215552.8A patent/CN117949910A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3982244A (en) | Radar antenna, monopulse comparator network and mixer simulator | |
| CN102608582B (en) | Carrier-borne full-coherent phased-array radar calibrator | |
| CN113740620A (en) | Phased array antenna rapid calibration test system and method | |
| CN211656151U (en) | Complex electromagnetic environment signal generation device supporting broadband multi-channel | |
| CN106027170A (en) | Digital miniature channel equipment automatic test device and system | |
| CN105333887A (en) | Radio altimeter signal simulation system | |
| CN208270756U (en) | Airborne fire control radar echo signal simulation system | |
| US20230044018A1 (en) | Signal processing method, apparatus, and system | |
| CN110535539A (en) | For the power compensating method of radio-frequency module, device, equipment and medium | |
| CN112684716A (en) | Aviation radio comprehensive test equipment and control method | |
| CN114384479A (en) | Phased array radar amplitude and phase calibration method and device and storage medium | |
| CN112671488A (en) | Spacecraft channel simulation device and application method thereof | |
| CN109343016B (en) | W-waveband digital sum-difference injection type dynamic target simulation method and device | |
| CN103424634A (en) | Wireless fidelity (WIFI) antenna test system and method | |
| CN117949910A (en) | Non-contact Doppler radar simulation system | |
| CN112422170B (en) | Near-field automatic detection method for dual-band radio frequency equipment | |
| CN116087896A (en) | Function-reconfigurable universal radio frequency microwave simulator | |
| CN115062729A (en) | Classification model and training method, classification method, device and medium thereof | |
| US20130013270A1 (en) | Methods, Devices and Computer Program Products Providing for Establishing a Model for Emulating a Physical Quantity Which Depends on at Least One Input Parameter, and Use Thereof | |
| Suchanski et al. | Electronic warfare systems supporting the database of the radio environment maps | |
| CN114665938A (en) | Multi-user RIS pre-coding method, device, computer equipment and storage medium | |
| Eschlwech et al. | Target simulation for UHF RFID DoA estimation systems | |
| CN209233815U (en) | A kind of radio frequency storage device | |
| CN116381298B (en) | Electronic countermeasure target system | |
| Chelmins et al. | Unique challenges testing SDRs for space |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |