KR101045344B1 - Gps 신호를 재밍하기 위한 장치 및 방법 - Google Patents
Gps 신호를 재밍하기 위한 장치 및 방법 Download PDFInfo
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- KR101045344B1 KR101045344B1 KR1020100099225A KR20100099225A KR101045344B1 KR 101045344 B1 KR101045344 B1 KR 101045344B1 KR 1020100099225 A KR1020100099225 A KR 1020100099225A KR 20100099225 A KR20100099225 A KR 20100099225A KR 101045344 B1 KR101045344 B1 KR 101045344B1
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- jamming
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/53—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/38—Jamming means, e.g. producing false echoes
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
도 2는 본 발명의 일 실시예에 따라 생성되는 재밍 신호를 나타낸다.
도 3은 본 발명의 실시예에 의하여 생성된 재밍 신호와 일반적인 잡음 재밍 기법에 따라 생성된 재밍 신호의 스펙트럼을 나타낸다.
도 4는 본 발명의 일 실시예에 따른 GPS 신호의 재밍 방법을 나타낸 흐름도이다.
Claims (12)
- GPS 신호를 수신하고, 상기 GPS 신호를 송신한 GPS 위성에 대응하는 C/A 코드와 임의의 재밍 데이터를 혼합하여 재밍 신호를 생성하는 재밍 신호 생성부; 및
상기 재밍 신호를 주파수 상향 변환하고 증폭하여 송신하는 송신부를 포함하고,
상기 재밍 신호 생성부는,
GPS 위성으로부터 GPS 신호를 수신하는 GPS 수신기;
상기 수신된 GPS 신호로부터 GPS 위성의 식별번호를 추출하는 위성번호 추출부;
상기 추출된 식별번호에 대응하는 C/A 코드를 생성하는 C/A 코드 생성기; 및
상기 C/A 코드와 상기 재밍 데이터를 혼합하는 제1 믹서를 포함하는 것을 특징으로 하는 GPS 신호의 재밍 장치. - 삭제
- 제1항에 있어서,
상기 위성번호 추출부는 상기 수신된 GPS 신호의 NMEA 메시지로부터 상기 GPS 위성의 식별번호를 추출하는 것을 특징으로 하는 GPS 신호의 재밍 장치. - 삭제
- 제1항에 있어서,
상기 재밍 신호 생성부는,
상기 C/A 코드와 상기 재밍 데이터가 혼합된 신호를 중간 주파수로 주파수 상향 변환하는 제2 믹서를 더 포함하는 것을 특징으로 하는 GPS 신호의 재밍 장치. - 제1항에 있어서,
상기 GPS 신호를 수신하고 상기 재밍 신호를 송신하기 위한 안테나를 더 포함하는 것을 특징으로 하는 GPS 신호의 재밍 장치. - 제6항에 있어서,
상기 안테나와, 상기 재밍 신호 생성부의 입력단 및 상기 송신부의 출력단을 선택적으로 연결시키는 스위치를 더 포함하는 것을 특징으로 하는 GPS 신호의 재밍 장치. - (a) GPS 신호를 수신하고, 상기 GPS 신호를 송신한 GPS 위성에 대응하는 C/A 코드와 임의의 재밍 데이터를 혼합하여 재밍 신호를 생성하는 단계; 및
(b) 상기 재밍 신호를 주파수 상향 변환하고 증폭하여 송신하는 단계를 포함하고,
상기 (a) 단계는,
GPS 위성으로부터 GPS 신호를 수신하는 단계;
상기 수신된 GPS 신호로부터 GPS 위성의 식별번호를 추출하는 단계;
상기 추출된 식별번호에 대응하는 C/A 코드를 생성하는 단계; 및
제1 믹서를 이용하여 상기 C/A 코드와 상기 재밍 데이터를 혼합하는 단계를 포함하는 것을 특징으로 하는 GPS 신호 재밍 방법. - 삭제
- 제8항에 있어서,
상기 GPS 위성의 식별번호를 추출하는 단계는 상기 수신된 GPS 신호의 NMEA 메시지로부터 상기 GPS 위성의 식별번호를 추출하는 것을 특징으로 하는 GPS 신호의 재밍 방법. - 삭제
- 제8항에 있어서,
상기 (b) 단계는,
제2 믹서를 이용하여 상기 C/A 코드와 상기 재밍 데이터가 혼합된 신호를 중간 주파수로 주파수 상향 변환하는 단계를 더 포함하는 것을 특징으로 하는 GPS 신호의 재밍 방법.
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150112166A (ko) * | 2014-03-27 | 2015-10-07 | 국방과학연구소 | 고속 신호 탐지 및 스마트 재밍 기술을 이용한 해양 선박 단속 시스템 및 방법 |
KR101833634B1 (ko) | 2016-08-23 | 2018-03-02 | 국방과학연구소 | 암호화 신호 교차상관 방식의 위성항법 기만 검출 방법 |
WO2018148604A1 (en) * | 2017-02-09 | 2018-08-16 | Jackson Labs Technologies, Inc. | Method and apparatus to retrofit legacy global positioning satellite (gps) and other global navigation satellite system (gnss) receivers |
KR20180134175A (ko) | 2017-06-08 | 2018-12-18 | 국방과학연구소 | 동기화된 위성항법 시스템 기만신호 생성 장치 및 그 방법 |
KR20190041208A (ko) | 2017-10-12 | 2019-04-22 | 국방과학연구소 | 위성항법 기만신호 발생 장치 및 방법 |
KR20200021872A (ko) * | 2018-08-21 | 2020-03-02 | 윤성욱 | 저고도 무인항공기 식별 및 무력화 방법 |
Citations (2)
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WO2004021030A1 (en) | 2002-08-29 | 2004-03-11 | Qualcomm Incorporated | Procedure for jammer detection |
US20090171583A1 (en) | 2006-03-15 | 2009-07-02 | The Boeing Company | Global position system (gps) user receiver and geometric surface processing for all-in-view coherent gps signal prn codes acquisition and navigation solution |
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Patent Citations (2)
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WO2004021030A1 (en) | 2002-08-29 | 2004-03-11 | Qualcomm Incorporated | Procedure for jammer detection |
US20090171583A1 (en) | 2006-03-15 | 2009-07-02 | The Boeing Company | Global position system (gps) user receiver and geometric surface processing for all-in-view coherent gps signal prn codes acquisition and navigation solution |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150112166A (ko) * | 2014-03-27 | 2015-10-07 | 국방과학연구소 | 고속 신호 탐지 및 스마트 재밍 기술을 이용한 해양 선박 단속 시스템 및 방법 |
KR101666444B1 (ko) | 2014-03-27 | 2016-10-14 | 국방과학연구소 | 고속 신호 탐지 및 스마트 재밍 기술을 이용한 해양 선박 단속 시스템 및 방법 |
KR101833634B1 (ko) | 2016-08-23 | 2018-03-02 | 국방과학연구소 | 암호화 신호 교차상관 방식의 위성항법 기만 검출 방법 |
WO2018148604A1 (en) * | 2017-02-09 | 2018-08-16 | Jackson Labs Technologies, Inc. | Method and apparatus to retrofit legacy global positioning satellite (gps) and other global navigation satellite system (gnss) receivers |
KR20180134175A (ko) | 2017-06-08 | 2018-12-18 | 국방과학연구소 | 동기화된 위성항법 시스템 기만신호 생성 장치 및 그 방법 |
KR20190041208A (ko) | 2017-10-12 | 2019-04-22 | 국방과학연구소 | 위성항법 기만신호 발생 장치 및 방법 |
KR20200021872A (ko) * | 2018-08-21 | 2020-03-02 | 윤성욱 | 저고도 무인항공기 식별 및 무력화 방법 |
KR102147121B1 (ko) * | 2018-08-21 | 2020-08-25 | 윤성욱 | 저고도 무인항공기 식별 및 무력화 방법 |
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