KR950020269A - Detector and its method in multi-target environment - Google Patents

Detector and its method in multi-target environment Download PDF

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Publication number
KR950020269A
KR950020269A KR1019930026128A KR930026128A KR950020269A KR 950020269 A KR950020269 A KR 950020269A KR 1019930026128 A KR1019930026128 A KR 1019930026128A KR 930026128 A KR930026128 A KR 930026128A KR 950020269 A KR950020269 A KR 950020269A
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South Korea
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coefficient
calculating
value
storage means
window
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KR1019930026128A
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Korean (ko)
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KR970003698B1 (en
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김창주
이황수
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양승택
재단법인 한국전자통신연구소
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28Details of pulse systems
    • G01S7/285Receivers
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/20Image preprocessing
    • G06V10/255Detecting or recognising potential candidate objects based on visual cues, e.g. shapes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

본 발명은 다중표적 환경에서 간섭신호의 영향을 받지 않고, 표적신호를 검파하기 위한 레이다 검파기법의 CFAR(Constant Faise Alarm Rate) 검파기 및 그 방법에 관한 것으로, 다중 표적 환경에서 간섭신호의 영향을 받지 않고 표적 신호를 검파하기 위한 레이다 검파 기법이므로 기존의 방법보다 계산량이 적으면서 동시에 검파율이 향상되는 효과가 있다.The present invention relates to a CFAR (Constant Faise Alarm Rate) detector of a radar detector for detecting a target signal without being affected by an interference signal in a multi-target environment, and is not affected by an interference signal in a multi-target environment. Radar detection method for detecting the target signal without the calculation method has the effect of improving the detection rate at the same time less amount of calculation than the conventional method.

Description

다중 표적 환경에서의 검파기 및 그 방법Detector and its method in multi-target environment

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 AMLD의 블럭도,3 is a block diagram of an AMLD according to the present invention;

제4도는 본 발명에 따른 AMLD 처리 방법에 대한 흐름도,4 is a flowchart of an AMLD processing method according to the present invention;

제5도는 기준창내에 2개의 간섭 표적이 존재하는 경우 AMLD와 기존의 방법인 GCMLD의 검파율 비교예시도,5 is a comparative example of detection rate of AMLD and GCMLD, which is an existing method when two interference targets exist in the reference window.

Claims (2)

자승 검파수단(301), 리딩 윈도우(303), 제1저장수단(305), 래깅 윈도우(305), 소팅 수단(306), 제2저장수단(307), 곱셈수단(313), 비교수단(310)을 구비하는 검파기에 있어서, 상기 자승 검파수단(301)의 검파 출력의 프리 시험셀의 값을 저장하는 제3저장수단(302); 상기 제2저장수단(307)의 출력값을 입력으로 하여 간섭표적의 수의 값에는 0을 배경 신호값에는 1을 곱하는 계수함수연산수단(308); 상기 계수함수 연산수단(308)의 각각의 출력값을 입력하고 계수를 입력받아 배경 레벨의 추정값을 연산 후 출력하는 배경 레벨 추정치 계산수단(309); 상기 곱셈수단(313)과 상기 제1저장수단(302)에 연결되어 시험셀의 값, 프리시험셀의 값, 그리고 문턱치를 이용하여 간섭표적의 수를 추정하여 추정치계수를 출력하는 추정수단(311); 및 상기 추정수단(311)의 출력값 중에서 상기 배경 레벨의 추정치 계산수단(309)으로 계수를 선정하여 전송하는 계수선정수단(312); 을 구비하는 것을 특징으로 하는 다중표적 환경에서의 검파기.Square detection means 301, leading window 303, first storage means 305, lagging window 305, sorting means 306, second storage means 307, multiplication means 313, comparison means ( A detector comprising: a third storage means (302) for storing a value of a pre-test cell of a detection output of the square detection means (301); Coefficient function calculation means (308) for multiplying the number of interference targets by zero and the background signal by one by inputting the output value of the second storage means (307); A background level estimation value calculating means (309) for inputting each output value of the coefficient function calculating means (308), receiving a coefficient, and calculating an output value after calculating an estimated value of the background level; Estimating means (311) connected to the multiplication means (313) and the first storage means (302) for estimating the number of interference targets using a value of a test cell, a value of a pre-test cell, and a threshold to output an estimated coefficient ); Coefficient selection means (312) for selecting and transmitting a coefficient from the output value of the estimation means (311) to the estimation value calculation means (309) of the background level; Detector in a multi-target environment, characterized in that it comprises a. 자승 검파수단(301), 제1저장수단(302), 리딩 윈도우(303), 제2저장수단(305), 래깅 윈도우(306), 소팅수단(306), 제3저장수단(307), 계수함수 연산수단(308), 배경 레벨 추정치 계산수단(309), 곱셈수단(313), 추정수단(311), 계수선정수단(312), 및 비교수단(310)을 구비하는 다중 표적 환경에서의 검파기에 적용되는 검파방법에 있어서, 초기값을 설정하여 간섭 표적의 수를 산정하고 기준창의 데이타를 크기순으로 소팅하는 제1단계(41 내지 43); 상기 제1단계(41 내지 43) 수행 후, 간섭 표적의 수에 따라 문턱치의 계수를 산정하고 소팅된 데이타로부터 간섭 표적의 수만큼 제외하고 배경 레벨 추정값을 계산하여 문턱치를 계산하는 제2단계(44 내지 46); 상기 제2단계(44 내지 46) 수행 후, 리딩 윈도우와 래깅 윈도우의 상태 정보를 저장하고 있는 레지스터를 시프트시켜 목표물과 간섭 표적의 존재를 결정하고 동작을 계속하려면 리턴하고 아니면 종료하는 제3단계(47 내지 50);를 포함하여 이루어지는 것을 특징으로 하는 다중 표적 환경에서의 검파방법.Square detection means 301, first storage means 302, leading window 303, second storage means 305, lagging window 306, sorting means 306, third storage means 307, coefficient A detector in a multi-target environment having a function calculating means 308, a background level estimation calculating means 309, a multiplication means 313, an estimating means 311, a coefficient selecting means 312, and a comparing means 310 A detection method applied to the first method, comprising: a first step (41 to 43) of setting an initial value to calculate the number of interference targets and sorting the data of the reference window in size order; After performing the first steps 41 to 43, a second step 44 is performed by calculating a threshold coefficient according to the number of interference targets and calculating a threshold by excluding a number of interference targets from the sorted data and calculating a background level estimate. To 46); After performing the second steps 44 to 46, a third step of shifting a register which stores state information of the leading window and the lagging window to determine the existence of the target and the interference target and returning to continue the operation, or ending the third step ( 47 to 50); detection method in a multiple target environment, comprising the. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930026128A 1993-12-01 1993-12-01 Multi-target detector and method KR970003698B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150131779A (en) * 2014-05-16 2015-11-25 한국전자통신연구원 Method for improving processing speed of OS-CFAR detection

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KR20050119448A (en) 2004-06-16 2005-12-21 삼성전자주식회사 Pole-base loading apparatus and main chassis for magnetic recording/reading device
CN107678019B (en) * 2017-08-16 2019-09-20 成都纳雷科技有限公司 Radar signal multi-target detection method and device based on CA-CFAR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150131779A (en) * 2014-05-16 2015-11-25 한국전자통신연구원 Method for improving processing speed of OS-CFAR detection

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