JPS5640778A - Magnetism failure detector - Google Patents

Magnetism failure detector

Info

Publication number
JPS5640778A
JPS5640778A JP11640879A JP11640879A JPS5640778A JP S5640778 A JPS5640778 A JP S5640778A JP 11640879 A JP11640879 A JP 11640879A JP 11640879 A JP11640879 A JP 11640879A JP S5640778 A JPS5640778 A JP S5640778A
Authority
JP
Japan
Prior art keywords
magnetism
signal
failure detector
output
altitude
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11640879A
Other languages
Japanese (ja)
Other versions
JPS6026474B2 (en
Inventor
Naoyuki Tojo
Takashi Fujisawa
Yasuo Tachibana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP54116408A priority Critical patent/JPS6026474B2/en
Publication of JPS5640778A publication Critical patent/JPS5640778A/en
Publication of JPS6026474B2 publication Critical patent/JPS6026474B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To enable to keep the detection accuracy higher at all times, by digital processing of the output from the magnetism failure detector.
CONSTITUTION: The magnetism measuring signal XA measured at the magnetism failure detector an the altitude signal UA obtained from the aircraft are converted into digital signals X, U at the A/D converters 2, 3, every time when the pulse P1 is produced and written in the memory units M1, M2...ML. The switches S1, S2...SL are switched with the control signal W and the memorized value is input to the adder 7. The output Y normalizing the magnetism measuring signal XA with the altitude UA is ibtained from the divider 8. The correlation signal indicating the characteristics such as sunken ship is picked up from the output and the correlation signal is compared with the threshold value to detect the presence of detected object.
COPYRIGHT: (C)1981,JPO&Japio
JP54116408A 1979-09-11 1979-09-11 magnetic anomaly detector Expired JPS6026474B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54116408A JPS6026474B2 (en) 1979-09-11 1979-09-11 magnetic anomaly detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54116408A JPS6026474B2 (en) 1979-09-11 1979-09-11 magnetic anomaly detector

Publications (2)

Publication Number Publication Date
JPS5640778A true JPS5640778A (en) 1981-04-17
JPS6026474B2 JPS6026474B2 (en) 1985-06-24

Family

ID=14686311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54116408A Expired JPS6026474B2 (en) 1979-09-11 1979-09-11 magnetic anomaly detector

Country Status (1)

Country Link
JP (1) JPS6026474B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021076528A (en) * 2019-11-12 2021-05-20 独立行政法人石油天然ガス・金属鉱物資源機構 Signal processing device, survey system, signal processing method, and program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021076528A (en) * 2019-11-12 2021-05-20 独立行政法人石油天然ガス・金属鉱物資源機構 Signal processing device, survey system, signal processing method, and program

Also Published As

Publication number Publication date
JPS6026474B2 (en) 1985-06-24

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