KR100994518B1 - Flight simulator apparatus capable of virtual radar warning receiver operation - Google Patents

Abstract

The present invention relates to a flight simulator apparatus capable of performing a virtual radar alarm operation.

In order to realize this, the present invention provides a cockpit system having the same flight control devices as the actual aircraft and its control device, an instructor room system for setting various flight conditions of the cockpit system, and the cockpit system and the instructor room. In the flight simulator device comprising a simulation host system for processing and transmitting the data related to the simulation generated in the system through a shared memory,

The simulation host system,

Temporarily storing input data for virtual radar alarm operation transmitted from the cockpit system or the instructor room system and generating threat radar signals processed by the threat radar signal generator, the threat radar signal processor, and the display processor. A data storage unit for storing intermediate data and final data related to transmission, analysis and operation; A threat radar signal generator for performing arithmetic processing to generate a radar pulse according to an input parameter for generating a threat radar signal received from the instructor room system; A threat radar signal processor configured to analyze the radar pulse and perform calculation processing to infer the type, mode state, distance, and azimuth of the threat radar that generated the radar pulse; A display processor configured to digitize or graph a result of calculation of the threat radar signal generator and the threat radar signal processor; And a control unit controlling an operation between the data storage unit, the threat radar signal generation unit, the threat radar signal processing unit, and the display processing unit.

Aircraft, Radar Alarms, Flight Simulators, Simulation

Description

FLIGHT SIMULATOR APPARATUS CAPABLE OF VIRTUAL RADAR WARNING RECEIVER OPERATION}

The present invention relates to a flight simulator apparatus capable of performing a virtual radar alarm operation. More specifically, the operation of analyzing the radar signal transmitted from the threat radar and extracting various parameters to determine the type, location and mode of the threat radar (eg, search mode, tracking mode, firing mode, etc.) The present invention relates to a flight simulator device capable of performing a 'radar alarm operation' under the same conditions as a real flight environment.

In general, higher trainers, such as the T-50, are not simply pilots performing flight control training, but are subjects to bandit threats or threats such as ground-to-air surface missiles (hereinafter referred to as 'threat radar'). It is necessary to carry out training to cope with this situation.

A radar warning receiver (RWR) is a device that receives such radar signals from the threat radar (bandit, surface-to-air missile, etc.), receives them as an antenna, analyzes them, and then identifies the type and location of the threat radar. to be.

However, there is a lot of time and economic difficulties to perform a training to cope with a threat situation by mounting a radar alarm in the actual trainer, so a flight simulator device capable of performing such a radar alarm operation is required.

Here, the flight simulator device is a device equipped to perform flight performance tests and pilot flight simulations, including virtual 'radar alarm operation', which typically consists of the same flight controls and the same as the cockpit of an actual aircraft. Cockpit system with control device and instructor system to transmit various flight conditions and flight instructions to the cockpit system and monitor the flight process, and simulation-related data generated from the cockpit system and the instructor system through shared memory It consists of a simulation host system for real time processing and transmission (see Korean Laid-Open Patent Publication No. 2004-0076364).

With these flight simulator devices, training to detect the presence of a threat radar and determine its position and mode status by implementing the same environment as the actual situation, simulated by the distance between the threat radar and the aircraft (ownship) The process of receiving the radar signal, analyzing the signal and extracting various parameters to determine various kinds of information about the threat radar (type of threat radar, position, mode, etc.) and visualizing the result of the calculation process A defined simulation host system is required.

The present invention analyzes a virtual 'radar alarm operation', i.e., analyzes radar signals transmitted from a threat radar and extracts various parameters to determine the type, location, and mode of a threat radar (eg, search mode, tracking mode). An object of the present invention is to provide a flight simulator capable of performing an operation of determining a tracking mode, a launch mode, and the like under the same conditions as an actual flight environment.

In order to achieve the above object of the present invention, the present invention,

A cockpit system with flight control devices and control devices identical to an actual aircraft, an instructor system for setting various flight conditions of the cockpit system, and simulation related data generated from the cockpit system and the instructor system A flight simulator comprising a simulation host system that processes and transmits in real time through shared memory,

The simulation host system,

Temporarily storing input data for virtual radar alarm operation transmitted from the cockpit system or the instructor room system, and generating a threat radar signal processed by a threat radar signal generator, a threat radar signal processor, and a display processor; A data storage unit for storing intermediate data and final data related to transmission, analysis and operation; A threat radar signal generator for performing arithmetic processing to generate a radar pulse according to an input parameter for generating a threat radar signal received from the instructor room system; A threat radar signal processor configured to analyze the radar pulse and perform calculation processing to infer the type, mode state, distance, and azimuth of the threat radar that generated the radar pulse; A display processor configured to digitize or graph a result of calculation of the threat radar signal generator and the threat radar signal processor; And a control unit controlling an operation between the data storage unit, the threat radar signal generation unit, the threat radar signal processing unit, and the display processing unit.

According to a preferred embodiment, the data storage unit includes a threat radar modeling database for storing and modeling the unique radar characteristics according to the type of threat radar, the threat radar modeling database, the location characteristics for each type of threat radar A location characteristic item storing the data as modeling data; A signal characteristic item storing shape characteristics of the radar signal emitted for each type of threat radar as modeling data of each subitem; And a noise characteristic item in which noise characteristics of the radar signal emitted for each type of threat radar are stored as modeling data of each subitem.

According to a preferred embodiment, the arithmetic processing for inferring the type of the threat radar of the threat radar signal processing unit extracts various parameters constituting the radar pulse by analyzing the radar pulse, and then extracts the various parameters and the data storage unit. By comparing the stored data of the threat radar modeling database, it may be performed by inferring the type of threat radar corresponding to the extracted various parameters.

According to a preferred embodiment, the arithmetic processing of inferring the mode state of the threat radar of the threat radar signal processor may be performed based on determining whether the radar pulse signal is continuous.

According to a preferred embodiment, the arithmetic processing to infer the distance of the threat radar of the threat radar signal processing unit is the following equation, which is a radar method,

Where P _d is the received power of the radar signal reaching its own ship, P _t is the transmit power of the threat radar, G _t is the antenna gain of the threat radar, and A _e is its Effective _radius of the aircraft, G _r is the antenna gain of its aircraft, λ is the wavelength of the LFM signal received from the threat radar, and R is the distance between the threat radar and its aircraft.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a conceptual diagram illustrating a configuration of a flight simulator apparatus capable of performing a virtual radar alarm operation according to a preferred embodiment of the present invention.

The flight simulator apparatus 1 according to the present invention includes a cockpit system 100, an instructor room system 200, and a flight simulation host system 300.

In addition, the flight simulation host system 300 is a configuration for supporting the flight simulator apparatus 1 to perform a virtual radar alarm operation, the input and output interface unit 302, data storage unit 304, threat radar signal generation unit 306, a threat radar signal processor 308, a display processor 310, and a controller 312 (see FIG. 2).

Here, 'virtual radar alarm operation' refers to the location, type and mode of the threat radar (eg, search mode, tracking mode, firing mode, etc.) by analyzing radar signals transmitted from the threat radar and extracting various parameters. Refers to a series of processing operations performed under the same conditions as the actual flight environment.

The cockpit system 100 is a system configured to allow the pilot to perform flight simulation with the same flight controllers and control devices as the actual aircraft.

The instructor room system 200 is a system configured to set various flight situation conditions, for example, flight condition conditions such as a virtual threat radar type, position, and mode state, and monitor a virtual radar alarm operation process. .

Flight simulation host system 300 is implemented as a specification of a server-class workstation terminal capable of network interworking with the cockpit system 100 and the instructor room system 200, the cockpit system 100 and the instructor room system 200 Each of them interlocks through a shared memory and a network 400 to quickly process and transmit instructions and data related to a virtual aircraft radar operation.

That is, the flight simulation host system 300, when performing the virtual radar alarm operation, the virtual situation corresponding to the flight status condition data, such as the type, location, mode state of the virtual threat radar received from the instructor room system 200 A threat radar signal is generated and the result is displayed in the cockpit system 100 and / or the instructor room system 200.

In addition, the flight simulation host system 300 performs various operations for determining the position, type, and mode of the threat radar that emits the virtual threat radar signal according to a manipulation command received from the cockpit system 100 and a pre-stored equation. And transmits the result of the calculation to the corresponding instruments and indicators of the cockpit system 100 and / or the instructor room system 200.

2 is a block diagram showing the internal configuration of a flight simulation host system 300 according to an embodiment of the present invention.

The flight simulation host system 300 includes an input / output interface unit 302, a data storage unit 304, a threat radar signal generator 306, a threat radar signal processor 308, a display processor 310, and a controller 312. It can be configured to include.

The input / output interface unit 302 performs an interface to input / output data through the cockpit system 100 and the instructor room system 200 and the shared memory and the network 400, thereby enabling interworking with each other.

In addition, the data storage unit 304 is input data for the operation of the virtual radar alarm transmitted from the cockpit system 100 or the instructor room system 200, for example, a virtual threat received from the instructor room system 200 The flight status condition data such as the radar type, position, and mode state, or various operation command data received from the cockpit system 100 are temporarily stored, and the threat radar signal generator 306 or the threat radar signal processor 308 It stores the intermediate data and final data related to the generation, transmission, analysis, and calculation of the radar pulse processed by).

In addition, in the present embodiment, the data storage unit 304 is a type of threat radar, for example, a search radar, an active radar missile, a Hawk, a Patriot, a Naval, a new aircraft, an old aircraft, The threat radar modeling database stores data on the unique radar characteristics of threat radar types, such as anti-aircraft artillery and surface to air missiles. Such a 'threat radar modeling database' may be stored including a 'position characteristic' item, a 'signal characteristic' item, and a 'noise characteristic' item for each threat radar.

Here, the 'positional characteristic' item is an item storing the positional characteristic of each threat radar as modeling data. For example, when the threat radar is the ground radar, the 'characteristic' item is a numeric character indicating 'fixed' or If the threat radar is a missile, designate the 'positional characteristics' item as a numeric letter or figure indicating 'linear flight (or flight according to the maneuver of the aircraft)', and the threat radar is an aircraft (or a ship). In this case, the 'positional characteristic' item may be stored as modeling data by designating a numerical character or a figure indicating 'constant area programmed flight (or flight)'.

The 'Signal Characteristics' item stores the characteristics of the shape of the radar signal emitted for each threat radar as modeling data of each subitem. For example, a modulation method is used to modulate each radar signal generated for each threat radar. ), PRF, pulse compression, operation frequency, operation width, pulse width, scan rate, and transmission power can be classified into modeling data and stored as modeling data. .

The 'noise characteristic' item stores the noise characteristic of the radar signal emitted for each threat radar as modeling data of each subitem. For example, the noise of each radar signal generated for each threat radar is thermal noise. Noise, Gaussian noise, and Rayleigh noise can be classified and stored as modeling data.

The threat radar signal generator 306 is a radar pulse (hereinafter referred to as an LFM signal) according to an input parameter for generating a threat radar signal received from the instructor room system 200 through the input / output interface 302. This module performs the function that generates). For example, the threat radar signal generator 306 performs an operation of generating the LFM signal according to Equation (1) below.

.......................(1)

.......................(One)

Where t is time, f _o is the chirp start frequency, B is the bandwidth, and τ is the pulse width.

According to a preferred embodiment, the input parameters for generating a threat radar signal (LFM signal), received from the instructor room system 200, include an operation frequencey, a scan rate, a pulse repetition frequency. repetition frequency, maximum transmission power, antenna carrier frequency, transmission power, antenna gain, vertical beamwidth, azimuth beamwidth, LFM signal beamwidth, pulse width, loss, and the like.

For example, the threat radar signal generator 306 transmits the antenna carrier frequency: 10 GHz, the transmit power: 1000 W, the antenna gain: 1000, the vertical beam width: from the instructor room system 200 through the input / output interface 302. When an input parameter of 3 °, azimuth beam width: 3 °, LFM signal beamwidth: 1 GHz, pulse width: 20 Hz, and loss: 0.5 is input, arithmetic processing is performed according to the expression (1) above, and FIG. Generate an LFM signal as shown. Here, the X-axis of Figure 4 is the data array order of the radar transmission signal, the Y-axis is the magnitude of the radar transmission signal (unit Voltage, normalized to the maximum value '1').

The threat radar signal processor 308 is configured to emit a virtual threat radar signal according to various operation commands and pre-stored equations received from the cockpit system 100 through the input / output interface unit 302, the state, the mode state, Perform various operations to determine the location. Operation processing operations of the threat radar signal processing unit 308 will be described in more detail with reference to FIG. 3.

2 and 3, first, the threat radar signal processing unit 308 receives a radar signal (ie, a cockpit system 200) received from a virtual threat radar (that is, a threat radar designated by the cockpit system 200). The radar signal generated by the threat radar signal generation unit 306) in accordance with an operation command (S302), and after extracting various parameters (S304), the data on the extracted various parameters and the data storage unit 304 By comparing the data of the stored 'threat radar modeling database' (S306), the type of threat radar corresponding to the extracted various parameters is inferred (S308).

Next, the threat radar signal processing unit 308 analyzes the radar signal transmitted from the virtual threat radar (S310), and performs arithmetic processing to determine the mode state of the threat radar (S312). For example, the threat radar signal processor 308 determines whether the search mode or the tracking mode is based on the continuity of the received radar signal. Specifically, in the case where the threat radar operates in the search mode, the threat radar performs an operation of searching for the aircraft through, for example, a scanning process of the type shown in FIG. Aircraft present at right angles receive the radar signal discontinuously at regular time intervals (scan rate). On the other hand, when the threat radar operates in the tracking mode, the radar signal is radiated in the direction of the target according to the movement of a specific target instead of the scanning process of the type shown in FIG. 5. In addition, the target aircraft continuously receives the radar signal transmitted from the threat radar.

Accordingly, the threat radar signal processing unit 308 may determine that the search mode is a search mode in the case of discontinuous reception or the tracking mode in the case of continuous reception based on the continuity of the received radar signal.

In addition, after the threat radar signal processor 308 determines that the threat radar is in the tracking mode, the threat radar signal processing unit 308 calculates the distance between its own aircraft and the threat radar to determine the firing mode ( launch mode). The method of calculating the distance between the own aircraft and the threat radar will be described later with reference to Equation (2).

Next, the threat radar signal processing unit 308 analyzes the radar signal transmitted from the virtual threat radar and performs a calculation process of estimating the distance between its own aircraft and the virtual threat radar (S314).

For example, the threat radar signal processing unit 308 performs a calculation process of estimating the distance between its own aircraft and the virtual threat radar according to the following equation (2) representing the radar equation.

...................(2)

...................(2)

Where P _d is the received power of the radar signal reaching its own aircraft, P _t is the transmit power of the threat radar, G _t is the antenna gain of the threat radar, A _e is the effective diameter of its aircraft, G _r Is the antenna gain of his aircraft, λ is the wavelength of the LFM signal received from the threat radar, and R is the distance between the threat radar and his aircraft.

Specifically, the threat radar signal processing unit 308 analyzes the radar signal (LFM signal) transmitted from the threat radar, extracts various parameters, and then stores the data about the extracted various parameters and 'threat radar modeling' stored in the data storage unit 304. By comparing the data of 'database', the transmission radar (P _t ) and antenna gain (G _t ) values of the threat radar are inferred. Meanwhile, the wavelength λ of the LFM signal received from the threat radar and the received power P _d of the radar signal reaching the own ship can be immediately derived by analyzing the radar signal transmitted from the threat radar. The antenna gain G _r of the own aircraft is a value previously stored in the data storage unit 304 as information about the own aircraft.

Therefore, the threat radar signal processing unit 308 applies its previously stored value G _r , analytical values λ, P _d and the estimated values P _t , G _t to the above equation (2). (ownship) and the distance between the virtual threat radar can be estimated (S316). However, since the radar signal (LFM signal) transmitted from the actual threat radar includes noise, it is preferable to average these values (minimum variance estimation).

Next, the threat radar signal processing unit 308 analyzes the radar signal transmitted from the virtual threat radar and performs a calculation process of estimating a bearing angle between its own aircraft and the virtual threat radar (S318). , S320). In the present embodiment, the threat radar signal processing unit 308 assumes that four radar alarm sensors are virtually mounted at a specific position of an own aircraft, and transmits four virtual radar alarm sensors and a radar signal. By analyzing the relative angle with the threat radar position, it is possible to estimate the bearing angle between own aircraft and the virtual threat radar (see FIG. 6).

The display processor 310 controls various radar alarm operation related data (threat radar signal generation, transmission, analysis, calculation) calculated by the threat radar signal generator 306 and the threat radar signal processor 308 under the control of the controller 312. An intermediate value and a final result value), and transmits the result to the cockpit system 100 and / or the instructor room system 200 to visualize the result. According to a preferred embodiment, the display processing unit 310 may be configured as a matlab program.

The control unit 312 is an input / output interface unit 302, data storage unit 304, threat radar signal generator 306, threat radar signal processing unit 308, the operation of the display processing unit 310 and between each unit (302, 304, 306, 308, 310) Integrate control of the data flow and generate and schedule processes corresponding to the indication signals, particularly when receiving various indication signals relating to virtual radar alarm operation from the cockpit system 100 or the instructor room system 200. The control operation for instructing the operation of the threat radar signal generator 306 and / or the threat radar signal processor 308 and / or the display processor 310, and the resultant value, the cockpit system 100 or the instructor room system. A control operation of instructing transmission to 200 is performed.

According to a preferred embodiment, the controller 312 assigns a high priority to a threat radar present in a range close to its own of the plurality of threat radars present around its own ship. For example, numbers, letters, or figures representing the priorities may be controlled to be displayed on the display screen of the cockpit system 100 and / or the instructor room system 200.

According to a preferred embodiment, the control unit 312 is a module (not shown) that performs the operation of the countermeasures dispenser system (CMDS) installed in the flight simulation host system 300, the range close to its aircraft It may provide data regarding the priority indicating. Accordingly, the module that performs the operation of the electronic disturbance blasting device (CMDS) may perform the operation of discharging the chaff automatically by discharging the chaff when the threat radar approaches within a certain distance. According to a preferred embodiment, the controller 312 may perform an operation of controlling the chaff to be thrown once or automatically several times.

7A to 7E are exemplary views of the plurality of threat radars detected by the flight simulator device 1 according to the preferred embodiment of the present invention on the screen of the cockpit system 100. 7A to 7E, a plurality of threat radars are shown in a Cartesian coordinate system.

In FIGS. 7A-7E, the interior of the central circle 702 represents a lethal region. Each threat radar is represented by a predetermined symbol (eg, ◇, □, +), and the numbers given to each symbol are prioritized according to the range close to their own ship. At the bottom of each symbol, a symbol (for example, search, tracking, launch) indicating a mode state of the threat radar is displayed.

According to a preferred embodiment, if a particular threat radar approaches at high speed, a display 704 indicating the number of the threat radar corresponding to the high speed approach may be configured to appear on one side of the screen.

Further, according to a preferred embodiment, when the operation of the countermeasures dispenser system (CMDS) is automatically executed, the display 706 indicating the automatic execution state can be configured to appear on one side of the screen. have.

Further, in accordance with a preferred embodiment, when a particular threat radar is operating in tracking or launch mode, it indicates a symbol (◇, □, +) or / and a mode state representing each threat radar. The symbol can be configured to show a warning indication (for example, marking the symbol as 'red').

The screen of FIG. 7A shows that the countermeasures dispenser system (CMDS) is set to 'auto' (ie, in the drawing, “Auto chaff” is shown in bold) (706), and the threat radar '2' The flight '3' is flying at a high speed (for example, 100 m / sec or more) is indicated as "rapid approach target2" and "rapid approach target3", respectively (704). In addition, although not clearly identified in FIG. 7A, each of the symbols 'search' and 'tracking' indicating the search mode and the tracking mode are actually divided into black and red colors.

The screen of FIG. 7B shows that the electronic disturbance prevention device (CMDS) is set to 'manual' (i.e., in the drawing, "Auto chaff" is dimmed) (706), threat radar '2' and '3' It indicates that the aircraft is flying at this high speed (for example, 100 m / sec or more) (704).

The screen of FIG. 7C shows that the electronic disturbance blasting device (CMDS) is set to 'automatic' (706), and the threat radar '2' is flying at a high speed (eg, 100 m / sec or more). (704).

The screen of FIG. 7D shows that the electronic disturbance blasting device (CMDS) is set to 'automatic' (706) and that the threat radar '2' is flying at a high speed (eg, 100 m / sec or more). In operation 704, an indication indicating that the threat radar '2' has entered the lethal region 702 is displayed on one side of the screen (708).

The screen of FIG. 7E shows that the electronic disturbance blasting device (CMDS) is set to manual (706), and the threat radar '2' is flying at a high speed (eg, 100 m / sec or more). In operation 704, an indication 708 indicating that the threat radar '2' has entered the lethal region 702 is displayed on one side of the screen. If the CMDS is set to manual, the chaff will not be sent automatically even if the threat radar enters the lithal area, and the pilot will manually input the chaff release command signal. Must be delivered.

8 is another exemplary diagram in which a plurality of threat radars detected by the flight simulator apparatus 1 according to the preferred embodiment of the present invention are displayed on the screen of the cockpit system 100.

In FIG. 8, a plurality of threat radars are shown in azimuth-range. Here, the radius of the circle is the distance from the own ship (ownship), the portion corresponding to the circumference represents the bearing distance between the own ship and the threat radar.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

1 is a conceptual diagram showing the configuration of a flight simulator apparatus capable of performing a virtual radar alarm operation according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating an internal configuration of a flight simulation host system applied to the flight simulator device of FIG. 1. FIG.

FIG. 3 is a flow chart illustrating some operations of the flight simulation host system of FIG. 2. FIG.

4 illustrates an LFM signal generated by the flight simulation host system of FIG.

5 is an exemplary view for explaining an operation processing method for determining the mode state of the threat radar by the flight simulator device of the present invention.

6 is an exemplary view for explaining a method for determining the relative angle with the threat radar by the inventor of the present invention flight simulator.

7A to 7E are exemplary views each showing a plurality of threat radars detected by the present inventors on the screen of the cockpit system.

8 is another exemplary diagram of a plurality of threat radars detected by the present inventors on the screen of the cockpit system.

<Description of Symbols for Main Parts of Drawings>

1: flight simulator 100: cockpit system

200: instructor room system 300: flight simulation host system

302: input and output interface unit 304: data storage unit

306: threat radar signal generation unit 308: threat radar signal processing unit

       310: display processing unit 312: control unit

Claims (5)

A cockpit system with flight control devices and control devices identical to an actual aircraft, an instructor system for setting various flight conditions of the cockpit system, and simulation related data generated from the cockpit system and the instructor system A flight simulator comprising a simulation host system that processes and transmits in real time through shared memory, The simulation host system, Temporarily storing input data for virtual radar alarm operation transmitted from the cockpit system or the instructor room system, and generating a threat radar signal processed by a threat radar signal generator, a threat radar signal processor, and a display processor; A data storage unit for storing intermediate data and final data related to transmission, analysis and operation; A threat radar signal generator for performing arithmetic processing to generate a radar pulse according to an input parameter for generating a threat radar signal received from the instructor room system; A threat radar signal processor configured to analyze the radar pulse and perform calculation processing to infer the type, mode state, distance, and azimuth of the threat radar that generated the radar pulse; A display processor configured to digitize or graph a result of calculation of the threat radar signal generator and the threat radar signal processor; And And a control unit controlling an operation between the data storage unit, the threat radar signal generation unit, the threat radar signal processing unit, and the display processing unit. The method of claim 1, The data storage unit, It includes a threat radar modeling database for modeling and storing unique radar characteristics according to the type of threat radar, The threat radar modeling database, A position characteristic item which stores position characteristics for each type of threat radar as modeling data; A signal characteristic item storing shape characteristics of the radar signal emitted for each type of threat radar as modeling data of each subitem; And And a noise characteristic item storing noise characteristics of a radar signal emitted for each type of threat radar as modeling data of each subitem. The method of claim 2, The operation processing for inferring the type of the threat radar of the threat radar signal processing unit extracts various parameters constituting the radar pulse by analyzing the radar pulse, and then extracts the extracted various parameters and data of the threat radar modeling database of the data storage unit. And by inferring the type of threat radar corresponding to the extracted various parameters. The method of claim 2, And arithmetic processing for inferring a mode state of the threat radar of the threat radar signal processing unit is performed based on determining whether the radar pulse signal is continuous. The method of claim 2, The operation processing for inferring the distance of the threat radar of the threat radar signal processing unit is a following formula, which is a radar method;

Flight simulator device characterized in that performed by. Where P _d is the received power of the radar signal reaching its own ship, P _t is the transmit power of the threat radar, G _t is the antenna gain of the threat radar, A _e is the effective diameter of its aircraft, G _r is the antenna gain of your aircraft, λ is the wavelength of the LFM signal received from the threat radar, R is the distance between the threat radar and your aircraft)

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