KR950012085A - 다중 통로 널링을 갖는 간섭계 데이타 처리방법 - Google Patents

다중 통로 널링을 갖는 간섭계 데이타 처리방법 Download PDF

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KR950012085A
KR950012085A KR1019940027107A KR19940027107A KR950012085A KR 950012085 A KR950012085 A KR 950012085A KR 1019940027107 A KR1019940027107 A KR 1019940027107A KR 19940027107 A KR19940027107 A KR 19940027107A KR 950012085 A KR950012085 A KR 950012085A
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South Korea
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emitter
interferometer
angles
log likelihood
processing method
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KR1019940027107A
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KR970010876B1 (ko
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브이. 크리코리안 캐프리얼
에이. 로젠 로버트
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완다 케이. 덴슨-로우
휴우즈 에어크라프트 캄파니
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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
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/10—Means for reducing or compensating for quadrantal, site, or like errors
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/043—Receivers
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

본 발명은 에미터로부터의 다중 통로 신호 복귀를 저지시켜 에이터와 간섭계 사이의 상대 각도의 개선된 추정치를 계산하기 위해 간섭계 데이타를 처리하는 처리 방법에 관한 것이다. 본 처리 방법은 다음 단게로 이루어진다. 간섭계에 대한 다수의 에미터 각도에서 에미터로부터 얻어진 복소 신호 진폭을 포함하는 간섭계 데이타를 모은다. 다수의 최대 로그 우도 함수를 산출하기 위해 다수의 에미터 각도의 각각에서 소정의 확률 밀도 함수의 자연 로그에 대응하는 소정의 로그 우도 함수를 최대화함으로써 다수의 에미터 각도의 각각에서 얻어진 복소 신호 진폭을 처리한다. 최적하게 최대화된 로그 우드 함수에 대응하는 에미터 각도를 에미터와 간섭계 사이의 상대 각도의 개선된 추정치로서 선택한다. 본 발명의 처리방법은 에미터로부터의 다중 통로 신호 복귀를 저지하여, 에미터와 간섭계 사이의 각도의 개선된 추정치를 계산한다. 본 발명의 처리방법은 특히, 비교적 작은 레이다 횡단면을 갖고 있는 안테나를 사용하는 레이다에서 레이돔 반사를 저지시키는데 이용될 수 있다.

Description

다중 통로 널링을 갖는 간섭계 데이타 처리 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 원리에 따른 처리 방법의 한 실시예를 도시한 플로우차트.
제2도는 제1도의 처리 방법을 실행하는데 사용되었던 테스트 셋업을 도시한 도면.
제3도는 본 발명의 방법을 이용하지 않은 간섭겨8에 대한 각도의 함수로서 에러의 모호성 분해 확률을 도시한 그래프.

Claims (2)

  1. 다중 통로 신호를 제거하여 에미터와 간섭계 사이의 상대 각도의 개선된 추정치를 제공하기 위해 간섭계로부터 얻어진 간섭 데이타를 처리하는 방법에 있어서, 간섭계에 대한 다수의 에미터 각도에 에미터로부터 얻어진 복소 신호 진폭을 포함하는 간섭 데이타를 모으는 단계, 다수의 최대화된 로그 우도 함수를 산출하기 위해 다수의 에미터 각도의 각각에서 소정의 확률 밀도 함수의 자연 로그에 대응하는 소정의 로그 우도 함수를 최대화함으로써 다수의 에미터 각도의 각각에서 얻어진 복소 신호 진폭을 처리하는 단계, 및 최적하게 최대화된 로그 우도 함수에 대응하는 에미터 각도를 에미터와 간섭계 사이의 상대 각도의 개선된 추정치로서 선택하는 단계를 포함하는 것을 특징으로 하는 간섭계로부터 얻어진 간섭 데이타를 처리하는 방법.
  2. 제1항에 있어서, 소정의 로그 우도 함수는 다음 식으로 주어지는데,
    여기에서, ω는 상대 다중 통로 파워의 기대값의 역수이고, k는 Q를 최대화하도록 선택된 상수이며,이고, v는 에미터로부터 얻어진 측정 전압 벡터이며, μ는 에미터에서 간섭계까지의 직통로에 대응하는 정규화된 전압 벡터이고 (μ+μ=1)로 주어지며, b는 직통로에 직각인 다중 통로에 대한 정규화된 전압 벡터이고 (b+b=1,μ+b=0)으로 주어지는 것을 특징으로 하는 간섭계로부터 얻어진 간섭 데이타를 처리하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940027107A 1993-10-25 1994-10-24 다중 통로 널링을 갖는 간섭계 데이타 처리 방법 KR970010876B1 (ko)

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US14095393A 1993-10-25 1993-10-25
US08/140.953 1993-10-25
US08/140,953 1993-10-25

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US (1) US5568394A (ko)
EP (1) EP0650070A3 (ko)
JP (1) JP2718900B2 (ko)
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AU (2) AU7743194A (ko)
CA (1) CA2134275C (ko)
IL (1) IL111348A (ko)

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KR20120072209A (ko) * 2010-12-23 2012-07-03 한국전자통신연구원 광대역 대용량 고속 통신시스템의 전파 추적 장치 및 방법
EP2699947A2 (en) * 2011-01-28 2014-02-26 Services Pétroliers Schlumberger Method for estimating a logging tool response in a layered formation
RU2516221C2 (ru) * 2012-01-13 2014-05-20 Федеральное государственное военное образовательное учреждение высшего профессионального образования "Военный авиационный инженерный университет" (г. Воронеж) Министерства обороны Российской Федерации Способ измерения эффективной площади рассеяния объектов и многопозиционный радиолокационный измерительный комплекс для его осуществления
RU2581706C1 (ru) * 2014-12-31 2016-04-20 Федеральный научно-производственный центр акционерное общество "Научно-производственное объединение "Марс" (ФНПЦ АО "НПО "Марс") Способ измерения пространственных координат цели в многопозиционной системе двухкоординатных рлс
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KR970010876B1 (ko) 1997-07-01
AU690041B2 (en) 1998-04-09
EP0650070A3 (en) 1998-09-16
EP0650070A2 (en) 1995-04-26
JP2718900B2 (ja) 1998-02-25
AU7743194A (en) 1995-05-11
AU7425296A (en) 1997-02-13
IL111348A (en) 1997-06-10
US5568394A (en) 1996-10-22
IL111348A0 (en) 1995-01-24
JPH07239379A (ja) 1995-09-12
CA2134275A1 (en) 1995-04-26
CA2134275C (en) 1999-12-28

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