KR20170024323A - Interrogator of the multilateration - Google Patents
Interrogator of the multilateration Download PDFInfo
- Publication number
- KR20170024323A KR20170024323A KR1020150119457A KR20150119457A KR20170024323A KR 20170024323 A KR20170024323 A KR 20170024323A KR 1020150119457 A KR1020150119457 A KR 1020150119457A KR 20150119457 A KR20150119457 A KR 20150119457A KR 20170024323 A KR20170024323 A KR 20170024323A
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- Prior art keywords
- question
- mode
- signal
- question signal
- interrogation
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/04—Anti-collision systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/0073—Surveillance aids
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
The disclosed technique relates to a question sending apparatus for a multivariate measurement monitoring system.
The multivariate measurement and monitoring system transmits a mode A interrogation signal, a mode C interrogation signal, and a mode A interrogation signal to a moving object in the monitoring area of the three-dimensional space and a moving object entering the monitoring area, A response signal for a question signal and a mode A inquiry signal is derived and received by a plurality of reception devices installed on the ground, and the central processing unit locates a precise position in the three-dimensional space with respect to the moving object.
Meanwhile, the multifiber measurement and monitoring system includes a question transmitter for transmitting the question signals. The interrogator transmits Mode A, Mode C, and Mode S interrogation signals to the mobile device in order to derive Mode A, Mode C, and Mode S response signals from the mobile device in the monitoring area of the three- .
However, if the question signal transmitted from the question transmitter does not follow proper procedures, a collision may occur between a moving object already existing in the monitoring area of the three-dimensional space and a moving object entering into the monitoring area, and a plurality of In the receiving apparatus, a plurality of signals are overlapped due to the phenomenon of synchronous variable and asynchronous transmission (False Replies From Unsynchronized Interrogator Transmission), and the discrimination power between received signals is reduced. Furthermore, the reception of a plurality of signals increases the computational throughput, which results in a problem that the processing speed of the trajectory is slowed down.
Korean Patent Laid-Open No. 10-2011-0095637 (entitled Aircraft Collision Avoidance Communication System) is a prior art for a multivariate measurement and monitoring system.
The disclosed technique is to provide a question sending apparatus that transmits a mode A interrogation signal, a mode C interrogation signal, and a mode interrogation signal to a moving object in a monitoring area of a three-dimensional space and a moving object entering the monitoring area.
According to a first aspect of the present invention, there is provided a method of generating a mode A question signal, a mode C question signal, and a mode S question signal for a moving object in a monitoring area of a three-dimensional space and a moving object entering the monitoring area, A frequency converter for converting the signal generator, the mode A interrogation signal, the mode C interrogation signal and the mode interrogation signal into a frequency band for radio transmission, a high power amplifier for amplifying the converted interrogation signal at a high power level, And a precise time synchronization unit for determining a pattern of the question signal using a predetermined algorithm and for synchronizing the time of the question sending apparatus and the control unit for controlling the question signal.
Embodiments of the disclosed technique may have effects that include the following advantages. It should be understood, however, that the scope of the disclosed technology is not to be construed as limited thereby, since the embodiments of the disclosed technology are not meant to include all such embodiments.
According to an embodiment of the disclosed technology, a question sending apparatus for a multivariate measurement and monitoring system transmits a question signal for each mode and derives a controlled response when detecting a plurality of responses from a plurality of receiving apparatuses installed on the ground, And provides an effect of improving the precision.
1 is a block diagram of a question sending apparatus according to an embodiment of the disclosed technique.
2 is a diagram showing the configuration of a multivariate measurement and monitoring system according to an embodiment of the disclosed technology.
FIG. 3 is a diagram showing a moving object in a monitoring area of a three-dimensional space and a moving object entering into the monitoring area in an embodiment of the disclosed technology.
4 is a diagram showing Whispershough question transmit power transmitted by a question transmitting apparatus to a moving object entering a monitoring area of a three-dimensional space in the disclosed technique.
5 is a block diagram of a question signal generating unit of a question sending apparatus according to an embodiment of the disclosed technique.
FIG. 6 is a diagram of a whisperhough generation portion of a question signal generator in an embodiment of the disclosed technique. FIG.
FIG. 7 is a diagram illustrating a whispershough question signal obtained by synthesizing in a whispershough generating unit according to an embodiment of the disclosed technology. FIG.
FIG. 8 is a diagram illustrating a whisper shoehour monitoring period of the multivariate measurement monitoring system according to an embodiment of the disclosed technology.
FIG. 9 is a flowchart showing a sequence of a question sequence in a surveillance region of the multivariate measurement monitoring system according to an embodiment of the disclosed technology.
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
The terms first, second, A, B, etc., may be used to describe various components, but the components are not limited by the terms, but may be used to distinguish one component from another . For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.
It is to be understood that the singular < RTI ID = 0.0 > terms < / RTI > used herein should be interpreted to include a plurality of representations unless the context clearly dictates otherwise. And "comprises ", when used in this specification, specify the presence of stated features, numbers, steps, operations, elements, parts, or combinations thereof, Or combinations thereof, as a matter of course.
Before describing the drawings in detail, it is to be clarified that the division of constituent parts in this specification is merely a division by main functions of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided.
In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner. Accordingly, the presence or absence of each component described in this specification should be interpreted as a function.
1 is a block diagram of a question sending apparatus according to an embodiment of the disclosed technique. 1, the question sending apparatus includes a question signal generator, a frequency converter, a high-power amplifier, a controller, and a precision time synchronizer. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
The question sending apparatus according to an embodiment of the disclosed technology derives a mode A response signal, a mode C response signal, and a mode S response signal from a moving object entering a monitoring area and a moving object in a monitoring area of a three-dimensional space in the multivariate measurement monitoring system In order to calculate the arrival time of the response signal of the moving object received by the plurality of receiving
The
The
The
The question
The frequency converter 120 frequency-converts the mode A interrogation signal, the mode C interrogation signal, and the mode interrogation signal of the
The
The
The precise
The
2 is a diagram showing the configuration of a multivariate measurement and monitoring system according to an embodiment of the disclosed technology. Referring to FIG. 2, the multivariate measurement and monitoring system includes an interrogating transmitter (ITX) 100, a reference and monitoring transponder (RMT) 400, a plurality of reception devices RU a receiver unit 501-504, a central processing unit (CPS) 600, and a control and monitoring system (CMS)
The
The
The
Accordingly, a plurality of receiving
The
The plurality of receiving apparatuses 501-504 are disposed at any known positions and receive a reference monitoring signal from the
When the
The
The control and
FIG. 3 is a diagram showing a moving object in a monitoring area of a three-dimensional space and a moving object entering into the monitoring area in an embodiment of the disclosed technology. Referring to FIG. 3, the
Here, the whisper-shuffle question function divides the question transmission power of the
In one embodiment, the
The Whisper-Shuffle question signal transmission determines the WS coverage whisper-shout coverage of the
On the other hand, the question surveillance region (WS coverage) of the
Control the WS coverage, which is the power level difference between the suppression pulse S1 and the interrogation pulses P1, P3 and P4, to control the number of
In the low-density traffic environment, the suppression pulse S1 level is transmitted as low as several tens of dB below the interrogation pulses P1, P3, and P4. In order to inquire more finely about the plurality of
FIG. 4 is a diagram showing the Whispershough question transmission power that the
The Nth inquiry transmission signal IRN transmitted from the
5 is a block diagram of a question signal generating unit of a question sending apparatus according to an embodiment of the disclosed technique. 5, the question
The question
The whisper-
Meanwhile, the digital
The interrogation
FIG. 6 is a diagram of a whisperhough generation portion of a question signal generator in an embodiment of the disclosed technique. FIG. Referring to FIG. 6, the whisper-
FIG. 7 is a diagram illustrating a whispershough question signal obtained by synthesizing in a whispershough generating unit according to an embodiment of the disclosed technology. FIG. Referring to FIG. 7, the whisper-shuffle question signal includes a moving object in a monitoring area of a three-dimensional space and a query pulse P1 (not shown) according to the traffic density of moving
The suppression pulse S1 transmits at a power level lower than the interrogation pulses P1, P3 and P4 so as to be able to respond only when a plurality of
FIG. 8 is a diagram illustrating a whisper shoehour monitoring period of the multivariate measurement monitoring system according to an embodiment of the disclosed technology. Referring to FIG. 8, the Whisper-ShoWa monitoring period is applied to a plurality of moving
In one embodiment, a mode A interrogation signal, a mode C interrogation signal, and a mode interrogation signal are transmitted to the plurality of
When the
The inquiry signal IRN and the response signal RPN are scheduled to be managed at regular intervals in consideration of the response signal processing time of the plurality of receiving apparatuses RU and the
FIG. 9 is a flowchart showing a sequence of a question sequence in a surveillance region of the multivariate measurement monitoring system according to an embodiment of the disclosed technology. Referring to FIG. 9, the interrogation signal is transmitted according to the whisper-whoshed monitoring period and the
As described above with reference to FIG. 2, when one query sequence is transmitted from the
According to the procedure of S120, the
The mode A response signal, the mode C response signal, and the mode S response signal are received from the plurality of
In step S140, the
If it is determined in step S150 that the trajectory range of the plurality of moving objects is not equal to the predetermined limit range, the procedure of steps S120 to S150 is repeated. In step S150, The query signal transmission power of the
In step S170, the
If the mode A response signal, the mode C response signal, and the mode S response signal are not detected from the plurality of
Therefore, by performing the above-described steps, it is possible to provide the effect of improving the positioning precision for the moving object by inducing the controlled response.
Although the question sending apparatus for a multivariate measurement monitoring system according to an embodiment of the disclosed technology has been described with reference to the embodiments shown in the drawings for the sake of understanding, the present invention is not limited thereto. It will be understood that various modifications and equivalent embodiments are possible. Accordingly, the true scope of protection of the disclosed technology should be determined by the appended claims.
100: Question sending apparatus 200:
300:
501 to 504: Multiple receiving apparatuses 600: Central processing unit
700: Controlled monitoring device 800: GNSS satellite
Claims (5)
A frequency converter for converting the mode A interrogation signal, the mode interrogation signal and the mode interrogation signal into a frequency band for radio transmission;
A high power amplifier for amplifying the converted question signal to a high power level;
A controller for determining a pattern of a question signal using a predetermined algorithm and controlling the question signal; And
And a precise time synchronization unit for synchronizing the time of the question sending apparatus.
And an inspection unit for checking at least one of an operation state of the question signal generation unit, the frequency conversion unit, the high power amplifier, the control unit and the precision time synchronization unit, a door lock state, a power supply state, Question sending device for system.
A question sending apparatus for a multivariate measurement and monitoring system that receives question schedule information from a central processing unit and performs a Whispershough question sequence.
A mode A / C question signal generator for generating a mode A / C question signal;
A mode S interrogation signal generator for generating a mode interrogation signal;
A whispershough generation unit for performing a whispershough question sequence according to question schedule information;
A digital variable attenuator for varying the question signal to a predetermined attenuation value; And
And a question signal synthesizer for synthesizing the question signals.
Wherein the mode A / C question signal is composed of a suppression pulse and a predetermined question pulse string and is varied to a predetermined attenuation value.
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KR1020150119457A KR20170024323A (en) | 2015-08-25 | 2015-08-25 | Interrogator of the multilateration |
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KR1020150119457A KR20170024323A (en) | 2015-08-25 | 2015-08-25 | Interrogator of the multilateration |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101892691B1 (en) * | 2018-05-08 | 2018-08-28 | 한화시스템(주) | Method for detecting peak power of transmitting/receiving signal in IFF |
KR101892690B1 (en) * | 2018-04-13 | 2018-08-28 | 한화시스템(주) | IFF and method for detecting peak power of transmitting/receiving signal |
KR102667104B1 (en) * | 2023-05-16 | 2024-05-20 | 한화시스템 주식회사 | Interrogating apparatus and method for identifying friend or foe |
-
2015
- 2015-08-25 KR KR1020150119457A patent/KR20170024323A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101892690B1 (en) * | 2018-04-13 | 2018-08-28 | 한화시스템(주) | IFF and method for detecting peak power of transmitting/receiving signal |
KR101892691B1 (en) * | 2018-05-08 | 2018-08-28 | 한화시스템(주) | Method for detecting peak power of transmitting/receiving signal in IFF |
KR102667104B1 (en) * | 2023-05-16 | 2024-05-20 | 한화시스템 주식회사 | Interrogating apparatus and method for identifying friend or foe |
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