KR100643940B1 - 레이더 시스템의 거리 분해능 향상 방법 - Google Patents
레이더 시스템의 거리 분해능 향상 방법 Download PDFInfo
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- KR100643940B1 KR100643940B1 KR1020050079219A KR20050079219A KR100643940B1 KR 100643940 B1 KR100643940 B1 KR 100643940B1 KR 1020050079219 A KR1020050079219 A KR 1020050079219A KR 20050079219 A KR20050079219 A KR 20050079219A KR 100643940 B1 KR100643940 B1 KR 100643940B1
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- Prior art keywords
- distance
- frequency
- moving target
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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
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
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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
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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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- 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)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims (4)
- 주기적인 기본 송신 주파수 신호로 이루어진 채널을 송신하고, 수신하는 기본 주파수 신호 송수신단계;상기 기본 주파수 신호 송수신 단계에서 이동 표적을 감지하는 이동 표적 감지단계;상기 이동 표적 감지단계에서 상기 이동표적이 감지되면, 상기 기본 주파수 신호에 의하여 상기 이동표적의 거리를 산출하고, 산출된 거리를 모호성 없는 거리로 판단하는 모호성 판단 거리측정단계;상기 모호성 판단 거리 측정단계에 의한 거리 측정후에 상기 기본 주파수 신호와 상기 기본 주파수 신호보다 도약 주파수(fh)의 정수배만큼씩 변화하여 증가된 채널들을 교번적으로 송수신하여 거리를 측정하는 채널증가 측정단계;상기 채널증가 측정단계에서 기설정된 채널수까지 증가가 이루어진 후에 상기 도약 주파수(fh)를 증가시켜 거리를 측정하는 도약주파수 증가단계를 포함하는 것을 특징으로 하는 레이더 시스템의 거리 분해능 향상 방법.
- 제 1 항에 있어서, 상기 채널증가 단계에서 거리측정은 채널증가시의 각 단계마다 이루어지는 것을 특징으로 하는 레이더 시스템의 거리 분해능 향상 방법.
- 제 1 항에 있어서, 상기 도약주파수 증가단계는 여러 단계에 걸쳐 도약주파수가 증가되며, 각 단계에서 거리가 측정되는 것을 특징으로 하는 레이더 시스템의 거리 분해능 향상 방법.
- 제 1 항 내지 제 3 항에 있어서, 상기 거리 측정은 MUSIC(Mutiple Signal Classification) 알고리즘에 의하여 이루어지는 것을 특징으로 하는 레이더 시스템의 거리 분해능 향상 방법.
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KR1020050079219A KR100643940B1 (ko) | 2005-08-29 | 2005-08-29 | 레이더 시스템의 거리 분해능 향상 방법 |
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KR1020050079219A KR100643940B1 (ko) | 2005-08-29 | 2005-08-29 | 레이더 시스템의 거리 분해능 향상 방법 |
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KR100643940B1 true KR100643940B1 (ko) | 2006-11-10 |
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KR1020050079219A KR100643940B1 (ko) | 2005-08-29 | 2005-08-29 | 레이더 시스템의 거리 분해능 향상 방법 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101052050B1 (ko) | 2011-02-28 | 2011-07-26 | 삼성탈레스 주식회사 | 다수의 레이더를 가간섭적으로 결합하여 이동 표적의 감지율을 향상시키는 방법 및 그 방법이 적용된 레이더 시스템 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0618656A (ja) * | 1992-06-30 | 1994-01-28 | Mitsubishi Electric Corp | 周波数ホッピング型スペクトル拡散レーダ装置 |
US5361072A (en) | 1992-02-28 | 1994-11-01 | Codar Ocean Sensors, Ltd. | Gated FMCW DF radar and signal processing for range/doppler/angle determination |
JPH0727857A (ja) * | 1993-07-13 | 1995-01-31 | Mitsubishi Electric Corp | レーダ装置 |
JPH07260923A (ja) * | 1994-03-23 | 1995-10-13 | Japan Radio Co Ltd | レーダ装置用送信源 |
JP2005195450A (ja) | 2004-01-07 | 2005-07-21 | Mitsubishi Electric Corp | 電波干渉対応型レーダ装置 |
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- 2005-08-29 KR KR1020050079219A patent/KR100643940B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5361072A (en) | 1992-02-28 | 1994-11-01 | Codar Ocean Sensors, Ltd. | Gated FMCW DF radar and signal processing for range/doppler/angle determination |
JPH0618656A (ja) * | 1992-06-30 | 1994-01-28 | Mitsubishi Electric Corp | 周波数ホッピング型スペクトル拡散レーダ装置 |
JPH0727857A (ja) * | 1993-07-13 | 1995-01-31 | Mitsubishi Electric Corp | レーダ装置 |
JPH07260923A (ja) * | 1994-03-23 | 1995-10-13 | Japan Radio Co Ltd | レーダ装置用送信源 |
JP2005195450A (ja) | 2004-01-07 | 2005-07-21 | Mitsubishi Electric Corp | 電波干渉対応型レーダ装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101052050B1 (ko) | 2011-02-28 | 2011-07-26 | 삼성탈레스 주식회사 | 다수의 레이더를 가간섭적으로 결합하여 이동 표적의 감지율을 향상시키는 방법 및 그 방법이 적용된 레이더 시스템 |
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