KR950020270A - Adaptive target filter - Google Patents

Adaptive target filter Download PDF

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Publication number
KR950020270A
KR950020270A KR1019930029188A KR930029188A KR950020270A KR 950020270 A KR950020270 A KR 950020270A KR 1019930029188 A KR1019930029188 A KR 1019930029188A KR 930029188 A KR930029188 A KR 930029188A KR 950020270 A KR950020270 A KR 950020270A
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South Korea
Prior art keywords
frequency
signal
outputting
output
phase shift
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KR1019930029188A
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Korean (ko)
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KR970004530B1 (en
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전민현
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안치환
엘지정밀 주식회사
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Priority to KR1019930029188A priority Critical patent/KR970004530B1/en
Publication of KR950020270A publication Critical patent/KR950020270A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

본 발명은 특정 물체를 탐지한 탐지신호에 불필요한 이동 표적의 잡 음성신호를 필터링할 수 있는 적응이동표적필터에 관한 것이다. 이 적응이동 표적필터는 제1 탐지신호와 제1 탐지신호 보다 90°지연되어 입력되는 제2 탐지신호를 입력하여 일정기간 동안 지연시켜서 출력하는 신호지연 장치와, 제1, 2 탐지신호를 입력하여 각 신호의 도플러 위상 이동값을 분석 출력하는 주파수분석장치와, 주파수 분석 장치에서 출력하는 제1, 2 탐지신호의 도플러 위상 이동값에 따른 평균 도풀러 주파수를 산출하여 산출된 도플러 주파수에 대한 제1, 2 신호의 도플러 위상 이동값을 출력하는 주파수평균장치와, 신호지연 장치에서 일정시간 지연된 제1, 2 탐지신호를 입력하여 주파수평균장치에서 출력되는 제1, 2 신호의 도플러 위상 이동값과 동일한 신호를 제거하여 출력하는 주파수 제거 장치를 구비함을 특징으로 한다.The present invention relates to an adaptive mobile target filter capable of filtering a job voice signal of a moving target unnecessary for a detection signal for detecting a specific object. The adaptive moving target filter includes a signal delay device for inputting a first detection signal and a second detection signal delayed by 90 ° from the first detection signal and delaying the input signal for a predetermined period, and inputting the first and second detection signals. A frequency analyzer for analyzing and outputting Doppler phase shift values of each signal, and a first Doppler frequency calculated by calculating an average Doppler frequency according to the Doppler phase shift values of the first and second detection signals output from the frequency analyzer And a Doppler phase shift value for outputting the Doppler phase shift value of the two signals, and a Doppler phase shift value for the first and second signals output from the frequency average device by inputting the first and second detection signals delayed by the signal delay device for a predetermined time. And a frequency removing device for removing and outputting the signal.

Description

적응이동 표적 필터Adaptive target filter

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

제1도는 종래에 사용된 필터의 블럭도.1 is a block diagram of a filter conventionally used.

제3도는 도플러 효과에 의한 이동 표적의 수신신호.3 is a reception signal of a moving target due to the Doppler effect.

제4도는 본 발명에 따른 적응이동표적필터의 전체 블럭도.4 is an overall block diagram of an adaptive mobile target filter according to the present invention.

Claims (5)

제1탐지신호와 상기 제1탐지신호보다 90°지연되어 입력되는 제2탐지신호를 입력하여 일정기간동안 지연시켜 출력하는 신호지연수단과, 상기 제1, 2 탐지신호를 입력하여 각 신호의이 도플러 위상 이동값을 분석 출력하는 주파수 분석수단과, 상기 주파수 분석수단에서 출력하는 제1, 2 탐지신호의 도플러 위상 이동값에 따른 평균 도플러 주파수에 대한 제1,2 신호의 도플러 위상 이동값을 출력하는 주파수평균수단과, 상기 신호지연수단에서 일정시간 지연된 제1, 2 탐지신호를 입력하여 상기 주파수평균수단에서 출력되는 제1, 2 신호의 도플러 위상 이동값과 동일한 신호를 제거하여 출력하는 주파수제거수단을 구비함을 특징으로 하는 적응이동표적필터.A signal delay means for inputting a first detection signal and a second detection signal that is delayed by 90 ° from the first detection signal, delaying the input signal for a predetermined period, and outputting the first detection signal and the second and second detection signals; A frequency analysis means for analyzing and outputting a phase shift value, and outputting a Doppler phase shift value of the first and second signals with respect to an average Doppler frequency according to the Doppler phase shift values of the first and second detection signals output from the frequency analysis means; Frequency removing means for inputting the frequency averaging means and the first and second detection signals delayed by the signal delay means for a predetermined time to remove the same signal as the Doppler phase shift value of the first and second signals output from the frequency averaging means. Adaptive moving target filter, characterized in that it comprises a. 제1항에 있어서, 상기 주파수평균수단은, 탐지 거리방향로 분석되어 출력하는 상기 주파수분석수단의 1, 2 도플러 위상 이동값을 평균하는 평균화수단과, 상기 평균화수단의 출력에 따른 도플러 주파수를 산출하는 도플러주파수산출수단과, 상기 산출수단에서 출력되는 도플러 주파수에 따라 저장되어 있는 제1, 2의 도플러 위상 이동값을 출력하는 도플러 위상이동값저장수단을 포함함을 특징으로 하는 적응이동 표적필터.2. The apparatus of claim 1, wherein the frequency averaging means comprises: averaging means for averaging one or two Doppler phase shift values of the frequency analyzing means analyzed and output in the detection distance direction, and a Doppler frequency according to the output of the averaging means; And a Doppler phase shift value storage means for outputting first and second Doppler phase shift values stored according to the Doppler frequency output from the calculation means. 제2항에 있어서, 상기 주파수평균수단은, 상기 주파수산출수단에서 출력하는 도플러 주파수를 일정시간 지연시켜 출력하는 지연수단과, 상기 지연수단의 출력과 상기 주파수 산출수단의 출력을 가산시켜 출력하는 가산수단을 더 포함함을 특징으로 하는 적응이동 표적필터.3. The apparatus of claim 2, wherein the frequency averaging means comprises: delay means for delaying and outputting the Doppler frequency output from the frequency calculating means for a predetermined time, and adding and outputting the output of the delay means and the output of the frequency calculating means. An adaptive moving target filter, characterized in that it further comprises means. 제3항에 있어서, 상기 도플러 위상이동값 저장 수단은, 상기 지연수단의 출력 도플러 주파수에 따른 제1, 2 신호의 도플러 위상 이동값을 출력하는 제1저장수단과, 상기 가산수단의 출력 도플러 주파수에 따른 제1, 2 신호의 도플러 위상 이동값을 출력하는 제2 저장수단을 포함함을 특징으로 하는 적응이동표적필터.4. The apparatus of claim 3, wherein the Doppler phase shift value storage means comprises: first storage means for outputting Doppler phase shift values of first and second signals according to the output Doppler frequency of the delay means, and an output Doppler frequency of the adder means; And second storage means for outputting the Doppler phase shift values of the first and second signals according to the present invention. 제4항에 있어서, 상기 주파수제거수단은, 상기 신호지연수단의 출력신호를 지연시켜서 출력하는 지연수단과, 상기 신호지연 수단의 출력신호에서 상기 제2저장수단의 출력신호를 제거하여 출력하는 제1제거수단과, 상기 지연수단의 출력신호에서 상기 제1저장수단의 출력신호를 제거하여 출력하는 제2 제거수단과, 상기 지연수단의 출력신호를 일정시간 지연시켜서 출력하는 제2지연수단과, 상기 제2지연수단의 출력신호와 상기 제1, 2 제거수단의 출력신호를 가산시켜서 출력하는 가산수단을 포함함을 특징으로 하는 적응이동표적필터.5. The apparatus of claim 4, wherein the frequency removing means comprises: delay means for delaying and outputting the output signal of the signal delay means, and outputting the output signal of the second storage means from the output signal of the signal delay means. First removing means, second removing means for removing and outputting the output signal of the first storage means from the output signal of the delaying means, second delay means for delaying the output signal of the delaying means for a predetermined time and outputting it; And adding means for adding and outputting the output signal of the second delay means and the output signals of the first and second removing means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029188A 1993-12-23 1993-12-23 Adoptive movement target filter KR970004530B1 (en)

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KR1019930029188A KR970004530B1 (en) 1993-12-23 1993-12-23 Adoptive movement target filter

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KR950020270A true KR950020270A (en) 1995-07-24
KR970004530B1 KR970004530B1 (en) 1997-03-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100289398B1 (en) * 1998-04-22 2001-05-02 김영환 Address transition detection sum circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100289398B1 (en) * 1998-04-22 2001-05-02 김영환 Address transition detection sum circuit

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